QP2-4R7 4.7 Ohm 3-Pin Starter Relay and Overload Kit
4.7Editor score
Three-pin PTC starter relay
Includes compatible overload protector
Broad compact-appliance coverage
In this guide
A refrigerator relay switch is a small but essential component in the compressor starting system. The right replacement can restore cooling in a compact refrigerator, wine cooler, or full-size appliance by coordinating the compressor’s start signal with the appropriate overload protection. Compatibility, pin count, resistance, electrical capacity, and the original part number matter more than appearance alone.
The products in this guide were compared using the specifications and application details supplied for each listing. They include universal-style PTC starter and overload kits, combined start relay and run capacitor assemblies, and manufacturer-specific replacements for popular refrigerator families. The comparison considers the appliance types each component supports and the installation checks needed before buying.
Each review explains the practical role of the component, highlights the details that distinguish it from the alternatives, and identifies the repair situation it is best suited to. The top recommendations reflect fit, useful coverage, clear specifications, and buyer value rather than a laboratory test. Product availability, ratings, and prices can change, so verify current listings and appliance compatibility before ordering.
Top 3 Picks for Best Relay Switch for Refrigerator
W10613606 Refrigerator Start Relay and Capacitor
4.2Editor score
Combined relay and capacitor
Broad replacement-part compatibility
Designed for major appliance brands
BlueStars Two-Pack W10613606 Relay and Capacitor
4.2Editor score
Two complete replacement assemblies
Integrated start relay and capacitor
Extensive model compatibility
Top 10 Best Relay Switch for Refrigerator in 2026 Compared
This side-by-side comparison organizes the ten choices by component type, electrical configuration, replacement coverage, and the refrigerator or cooler most likely to need it, making model-number verification easier.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BlueStars W10613606 Relay and Capacitor
Combined relay and capacitor
Manufacturer-specific replacement
W10613606 model number
Full-size refrigerator focus
4.2Editor score
Editor's Choice
QP2-4R7 Three-Pin Starter Kit
4.7-ohm three-pin relay
Overload protector included
Up to one-half horsepower
Compact appliance coverage
4.7Editor score
Best Premium
W10197428 TSD2 Relay and Capacitor
TSD2 starter relay
Run capacitor included
Quarter-horsepower maximum
Defined terminal interfaces
4.1Editor score
QP2-4.7 Two-Pin Starter Kit
4.7-ohm two-pin relay
Overload protector included
Eight-ampere relay limit
Mini-fridge applications
4.7Editor score
Mudder One-Pin Starter Kit
4.7-ohm one-pin relay
6750C-0005P protector
Fifteen-ampere protector limit
Compact refrigerator focus
4.3Editor score
QP-02-4.7 Three-Pin Starter Kit
4.7-ohm three-pin relay
Half-horsepower protector
Twelve-ampere relay limit
110-volt compressor focus
4.3Editor score
QP2-4.7 One-Pin Starter Kit
4.7-ohm one-pin relay
Half-horsepower protector
Twelve-ampere relay limit
Wide cooler compatibility
4.3Editor score
BlueStars Two-Pack W10613606
Two relay-capacitor assemblies
Manufacturer-specific replacement
Broad brand compatibility
Full-size refrigerator focus
4.2Editor score
Five-Set Relay and Overload Kit
Five relay and protector sets
4.7-ohm one-pin relays
Sixth-horsepower protectors
Multi-appliance maintenance
4.4Editor score
Two-Set One-Pin Starter Kit
Two complete repair sets
4.7-ohm one-pin relays
6750C-0005P protectors
Brass protector construction
4.4Editor score
1. BlueStars W10613606 Relay and Capacitor – Best Overall Relay Switch for Refrigerator
BlueStars W10613606 Relay and Capacitor
Combined starter relay and capacitor
W10613606 replacement assembly
Wide major-brand compatibility
Targets no-start cooling faults
The BlueStars W10613606 Refrigerator Compressor Start Relay and Capacitor is a combined replacement assembly for refrigerators whose original starter relay and run capacitor are identified by W10613606 or one of the listed cross-reference numbers. Its 4.2 rating is modest compared with the strongest generic kits, but that figure tells only part of the story. For a compatible full-size refrigerator, the advantage is the combination of a manufacturer-specific part number, a long replacement list, and coverage of multiple major appliance brands.
Pros
- Combines two related components
- Extensive replacement-part list
- Covers numerous major brands
- Addresses common cooling symptoms
Cons
- Not a universal appliance solution
- Model verification is essential
We may earn a commission when you buy through this link, at no additional cost to you.
The component is presented as a direct fit for Amana, Kenmore, Maytag, Whirlpool, KitchenAid, Jenn-Air, Litton, Crosley, Dacor, Admiral, Hardwick, Magic Chef, and Inglis products. The supplied model examples include Kenmore units beginning with 59676579601 and Whirlpool units such as GB2SHDXPB01. It also replaces a substantial collection of identifiers, including 67003186, 67003764, 67005560, 67005561, 67005562, 8171210, 8208290, 8208368, W10416065, and PS8746522, which can make cross-referencing easier.
The tradeoff is that this is not a broadly universal mini-fridge relay. Its usefulness depends on finding the same number on the failed component, locating the same number in the appliance documentation, or confirming a listed cross-reference. The product is also intended to correct symptoms such as a compressor that will not start, a warm refrigerator section, a warm freezer section, or both compartments remaining too warm. Those symptoms can also come from other faults, so a relay is not automatically the answer to every cooling problem.
This is the strongest recommendation for a buyer who has identified W10613606 and needs a combined relay-and-capacitor replacement. It is especially useful when the old relay and capacitor are both due for service, because one assembly addresses both parts. Before ordering, compare the component markings, physical shape, wiring arrangement, and model number rather than relying only on the refrigerator’s displayed brand. When all of those details align, it offers focused, model-specific coverage with little guesswork.
The stated lifetime protection and OEM-standard construction claims add reassurance, but the long-term value still depends on correct installation and a functioning compressor, wiring system, refrigerant circuit, and thermostat. A failed relay may be the first visible sign of a motor or starting-system problem, not the only problem. Confirm the symptom pattern and inspect the removed part before installing the replacement.
Convenient Combined Replacement
The integrated assembly simplifies a repair that would otherwise involve sourcing a starter relay and a run capacitor separately. That convenience is most valuable when the two original parts share the W10613606 configuration and are intended to work together.
Cross-Reference Support
A broad list of replacement numbers gives owners more than one way to identify a matching part. Still, the safest approach is to treat the cross-references as candidates and confirm them against the appliance model and the removed components.
We may earn a commission when you buy through this link, at no additional cost to you.
2. QP2-4R7 Three-Pin Starter Kit – Best Budget Relay Switch for Refrigerator
QP2-4R7 Three-Pin Starter Kit
4.7-ohm three-pin PTC relay
Includes one overload protector
Supports up to half horsepower
Broad compact-appliance application
The QP2-4R7 4.7 Ohm 3-Pin PTC Starter/Start Relay and Overload Kit is a compact, budget-conscious repair option with a 4.7 rating. It includes a 4.7-ohm, three-pin PTC starter relay and a refrigerator overload protector, allowing a technician to replace both elements of a common starting system at once. The stated overload range covers compressors from 1/12 horsepower through 1/2 horsepower at 110 volts and 60 hertz.
Pros
- Highest listed product rating
- Relay and protector supplied together
- Extensive cross-reference numbers
- Works across many appliance brands
Cons
- Three-pin configuration must match
- Limited to stated electrical range
We may earn a commission when you buy through this link, at no additional cost to you.
Compatibility is presented broadly, including Vissani, Danby, EdgeStar, Summit, Whirlpool, Frigidaire, Kenmore, Haier, Igloo, and Magic Chef appliances. The relay replaces identifiers including QP2-4R7, QP2-4.7, QP2-4.7G12, WS-EP14F, 6R8MD3, AP4565041, 1206682, and 3990100070. The protector side includes a long list of common numbers, such as 6750C-0004R, 6750C-0005P, 268273, 1357963, AH3529540, AP4439459, and LP21704.
Its main limitation is specificity. A three-pin starter is not interchangeable with a one-pin or two-pin relay, and the included overload must be appropriate for the compressor’s current draw and starting arrangement. The supplied 1/12-to-1/2-horsepower specification makes that point particularly important. Connecting a mismatched protector or relay to a higher-current system can cause repeated starts, overheating, premature failure, or damage to other components.
Choose this kit when the removed relay is marked QP2-4R7 or QP2-4.7, has three pins, and the compressor falls within the listed range. It is a particularly useful option for mini refrigerators, beverage coolers, compact refrigerators, and similar appliances. Installation should follow the terminal markings and the wiring diagram for the appliance rather than a general online wiring guide.
Among the generic starter kits, this option stands out because its rating, stated horsepower range, and replacement-number coverage are clearly presented. The result is a practical balance for a common compact-appliance repair, provided the buyer performs the essential checks before installation.
Complete Two-Part Repair Kit
Including both the PTC starter relay and overload protector is useful because these parts work together during compressor startup. The package offers a more complete replacement than a relay-only purchase without requiring the buyer to assemble a custom set.
Clear Electrical Boundaries
The stated voltage, frequency, horsepower range, and resistance make verification more concrete. Those figures are valuable, but they still need to agree with the compressor and original wiring configuration before installation.
We may earn a commission when you buy through this link, at no additional cost to you.
3. W10197428 TSD2 Relay and Capacitor – Best Premium Relay Switch for Refrigerator
W10197428 TSD2 Relay and Capacitor
TSD2 starter device
W10662129 run capacitor
Quarter-horsepower compressor limit
Six-and-three millimeter interfaces
The W10197428 W10189190 TSD2 Refrigerator Start Relay and W10662129 Run Capacitor is a combined replacement set for refrigerators using the specified TSD2 starter and W10662129 capacitor. Its 4.1 rating is not the highest in this roundup, but the listing offers unusually specific compatibility guidance, including a compressor limit of one-quarter horsepower and stated interface sizes of 6.3 mm for the relay and 4.8 mm for the capacitor.
Pros
- Detailed interface measurements
- Extensive model cross-references
- Combines starter and run capacitor
- Clear horsepower limitation
Cons
- Lower rating than top alternatives
- Precise interface matching required
We may earn a commission when you buy through this link, at no additional cost to you.
The starter replaces a long list of common references, among them W2319792, W10448878, 297237702, WR07X10097, WR08X21100, 2312074, 241941005, 2319792, 14200214, AH2348569, and EA2348569. The run capacitor list similarly includes 2188516, 2264017, 4312484, 4356442, 4390503, 60001028, 65889-2, 68001280, WPW10662129, AP5807758, and others. The stated brand coverage includes Kenmore, Whirlpool, Amana, Maytag, Norse, Roper, KitchenAid, Jenn-Air, Magic Chef, and Estate.
The specificity makes this a strong premium option for a careful buyer who can positively identify the correct interface. It is less forgiving for someone relying on a loose appearance match. The product description emphasizes checking refrigerator model, compressor power, and interface size before purchase, and warns that mismatches can lead to fitting problems or overheating. That warning is a feature of the listing rather than a defect, since proper compatibility is central to a combined motor-starting assembly.
The targeted symptom list includes failure to start, clicking, lack of cooling, and excessive heat in the refrigerator and freezer. As with every relay or capacitor repair, those symptoms can also originate in the compressor, thermostat, wiring, control board, or refrigerant system. The replacement should be selected after diagnosing the starting circuit rather than simply because the appliance is cold.
This kit earns the premium distinction because it combines a starter, a run capacitor, extensive cross-reference information, and explicit physical measurements. It is best suited to a refrigerator whose compressor is no more than one-quarter horsepower and whose terminals match the listed dimensions. Users who can document those details will gain a more targeted repair than they would from a generic PTC kit.
Interface Measurements Reduce Guesswork
Published terminal dimensions give a more objective comparison than shape alone. Measuring the old relay and capacitor before ordering helps prevent an otherwise expensive mismatch.
Starter and Capacitor in One Set
The paired design addresses both the transient starting surge and the continued electrical assistance needed while the compressor runs. It is a coherent repair for refrigerators designed around these specified parts.
We may earn a commission when you buy through this link, at no additional cost to you.
4. QP2-4.7 Two-Pin Starter Kit – Versatile Compact Appliance Repair
QP2-4.7 Two-Pin Starter Kit
4.7-ohm two-pin PTC relay
Overload protector included
Eight-ampere maximum current
Broad mini-fridge compatibility
The QP2-4.7 PTC 4.7 Ohms Starter Relay and Refrigerator Overload Protector set is designed around a 4.7-ohm, two-pin relay. It carries a 4.7 rating and targets mini fridges, compact refrigerators, beverage and wine coolers, deep freezers, and chest freezers. That makes it a broad option for owners of smaller cooling appliances who have confirmed the original starter uses two terminals.
Pros
- High listed rating
- Two-pin configuration clearly stated
- Useful overload cross-references
- Broad compact-cooling applications
Cons
- Eight-ampere operating limit
- Not suitable for every relay style
We may earn a commission when you buy through this link, at no additional cost to you.
The package includes one PTC starter relay and one overload protector, so the main parts of a common starting circuit are supplied together. The overload side replaces identifiers such as AP4439459, 1357963, AH3529540, EA3529540, and PS3529540. The listing’s compatibility message mentions Whirlpool, Frigidaire, and Kenmore, while also positioning the kit for many smaller cooling appliances rather than one specific manufacturer.
An important boundary is the relay’s maximum current rating of eight amps. The product description warns that operating beyond this limit may result in failure. That makes the kit most appropriate for compact appliances whose compressor and start system remain within the relay’s limits. It should not be selected solely because a two-pin component is present; resistance, pin count, mounting style, terminal arrangement, and current requirements all need to agree.
Installation is described as a direct replacement intended to restore cooling without a complicated modification. The phrase does not remove the need for safety. The appliance should be disconnected from its power source, the wiring should be inspected, and the new parts should be seated and connected exactly as the original components were wired. A relay replacement cannot compensate for a compressor with a shorted winding, a failed overload, damaged wiring, or a refrigerant-system fault.
This is a strong selection for a two-pin QP2-4.7 starter in a suitably sized mini fridge or cooler. Its high rating and clearly stated current limit add confidence, while the included protector reduces the need to source a second component. The most important buying check remains whether the old relay has exactly two pins and matches the specified electrical class.
Useful for Numerous Cooler Types
The stated range extends beyond conventional refrigerators to wine coolers, beverage coolers, chest freezers, and compact units. This makes it a useful general-purpose kit when the electrical and mechanical specifications match.
Published Current Limit
The eight-ampere maximum is important information, not merely a technical footnote. It provides a clear boundary for deciding whether the relay is appropriate for the compressor and starting circuit.
We may earn a commission when you buy through this link, at no additional cost to you.
5. Mudder One-Pin Starter Kit – Practical Replacement for Mini Fridges
Mudder One-Pin Starter Kit
4.7-ohm one-pin PTC relay
6750C-0005P overload protector
Fifteen-ampere protector maximum
Two components included
The Mudder 2 Pcs QP2-4.7 PTC Starter Relay and 6750C-0005P Overload Protector is a one-pin starter repair set for compatible compact refrigerators. Its 4.3 rating reflects a generally solid buyer reception, while the product details concentrate on the two most consequential questions: whether the old starter has one terminal and whether the appliance uses a high-current or standard overload protector.
Pros
- Simple one-terminal configuration
- Protector reaches fifteen amps
- Broad compact-appliance use
- Durable rust-resistant materials
Cons
- Only fits one-terminal relay type
- Requires model verification
We may earn a commission when you buy through this link, at no additional cost to you.
The relay is explicitly limited to the QP2-4.7 one-terminal type. The overload replaces AP4439459, 1357963, AH3529540, EA3529540, and PS3529540 numbers, and its maximum current is stated as 15 amps. The listing warns that a high-current refrigerator still requires a high-current parameter protector; using the wrong protector can cause it to burn. This distinction is crucial because the product is intended for both mini fridges and more demanding compact cooling systems.
Applications include mini fridges, compact refrigerators, beverage coolers, beer coolers, deep freezers, and wine refrigerators. The relay and overload are described as durable plastic components, with the overload also using brass. A direct-replacement design simplifies parts acquisition, but the original wiring, mounting arrangement, and terminal routing should still be reproduced exactly.
The listed symptom coverage includes a compressor that does not start, excessive heat, and clicking or clacking every three to five minutes after power is applied. Those patterns often point toward the starting circuit, although they can also be caused by a locked compressor, low refrigerant, control problems, or wiring faults. A replacement relay should therefore be treated as a repair after a basic diagnosis rather than a substitute for troubleshooting.
This kit is a sensible choice when the original relay has one terminal, the resistance is 4.7 ohms, and the overload specification matches the compressor. It is less suitable for a two- or three-pin starter, which makes visual identification and possibly a multimeter check essential. For the correct one-pin application, however, it offers a straightforward two-part solution with a clearly stated overload ceiling.
One-Pin Identification Matters
A one-terminal relay cannot be safely adapted to a two- or three-terminal starter. The old component’s number, terminal count, and resistance should be checked before this kit is selected.
Appropriate Overload Selection
The fifteen-ampere maximum makes the protector potentially suitable for higher-current compact appliances, but only within the stated conditions. A compressor that requires a different parameter protector should not be connected to this unit.
We may earn a commission when you buy through this link, at no additional cost to you.
6. QP-02-4.7 Three-Pin Starter Kit – Clearly Documented Installation Option
QP-02-4.7 Three-Pin Starter Kit
4.7-ohm three-pin PTC relay
Half-horsepower overload protector
Twelve-ampere relay maximum
Only 110-volt compressors
The 1Pcs QP-02-4.7 3Pin 4.7 Ohm Refrigerator Start Relay and 1/2HP Overload Protector kit is built for a specific three-terminal starter arrangement. It has a 4.3 rating and includes one 4.7-ohm PTC relay and one half-horsepower overload protector. The listing is notably transparent about its limitations: it is not compatible with other pin counts and is intended only for 110-volt compressors.
Pros
- Includes both starting components
- Detailed wiring guidance
- Clear current and voltage limits
- Targets common click-cycle faults
Cons
- Restricted to three-pin relays
- Limited to 110-volt compressors
We may earn a commission when you buy through this link, at no additional cost to you.
The product details specify a maximum current of 12 amps for the 4.7-ohm relay and advise comparing the supplied images with the existing parts before ordering. They also include an installation outline that connects a terminal of the protector to the live wire, a terminal of the PTC relay to neutral, and the first and third relay terminals to the capacitor when one is present. This is useful conceptual guidance, but the appliance’s own wiring diagram remains the controlling document.
The symptom applications include a compressor that will not start, overheating, and a click-click sound every few minutes after startup. The listing also correctly notes that a failed relay is only one possible cause. Compressor noise, controller failure, wiring problems, and a lack of refrigerant can produce similar symptoms, so replacing the relay without ruling out those conditions may not solve the fault.
Professional installation is recommended in the product information, along with unplugging the appliance and wearing gloves. That advice is especially relevant because the relay handles a high inrush current when the compressor begins moving. A loose or incorrectly connected terminal can interrupt the start sequence, create heat, or damage insulation, while incorrect routing can create a short circuit.
This kit is most appropriate for a mini refrigerator, cooler, or similar appliance using a QP-02-4.7 three-pin relay, a 110-volt compressor, and a compatible half-horsepower overload. The published limits make it possible to disqualify it quickly when the original configuration differs. When it does match, the combination and explicit terminal guidance make it a practical repair set.
Transparent Electrical Restrictions
The 110-volt restriction, three-terminal requirement, horsepower rating, and 12-amp ceiling allow a buyer to confirm fit before ordering. Precise exclusions can be more helpful than a vague claim of universal compatibility.
Installation Requires Care
The starting relay is exposed to a brief but powerful surge. Correct wire routing, secure terminals, insulation, and appliance-specific diagrams are essential to a safe and effective repair.
We may earn a commission when you buy through this link, at no additional cost to you.
7. QP2-4.7 One-Pin Starter Kit – Broad Choice for Common Coolers
QP2-4.7 One-Pin Starter Kit
4.7-ohm one-pin PTC relay
One-half-horsepower protector
Twelve-ampere relay maximum
Broad compact-appliance use
The 1 Pack QP2-4.7 QP2-4R7 4.7 Ohm one-pin starter and overload protector set is a common repair choice for mini fridges and other compact cooling appliances. It has a 4.3 rating and combines a 4.7-ohm, one-terminal PTC relay with a 1/2-horsepower overload. The product is positioned as a direct replacement that can be installed without modifying the cooling appliance.
Pros
- Straightforward one-pin configuration
- Common replacement numbers listed
- Works across varied cooler types
- Includes overload protector
Cons
- Twelve-ampere operating ceiling
- One-terminal relays only
We may earn a commission when you buy through this link, at no additional cost to you.
The protector replaces AP4439459, 1357963, AH3529540, EA3529540, and PS3529540 part numbers, while the relay is identified as the QP2-4.7 and QP2-4R7 one-pin type. The stated applications cover mini fridges, compact refrigerators, beverage coolers, wine and beer coolers, deep freezers, and chest freezers. This makes the kit relevant to a broad group of owners, provided the compressor and wiring are electrically compatible.
The relay’s maximum current is stated as 12 amps. Exceeding that level is expressly outside the product’s intended use, so the rating should be compared with the appliance’s compressor and starting requirements. The one-pin shape is equally important. A relay that looks similar but has two or three terminals can lead to incorrect wiring and equipment damage.
The direct-replacement approach is attractive when the original relay is visibly damaged, scorched, loose, or electrically open. A burned relay may indicate a deeper starting problem, however, including a seized compressor or a marginal overload. Replacing the relay and protector can restore the starting circuit, but only if the compressor itself can run and the other cooling-system fundamentals are intact.
This is a solid option for a matching one-pin QP2-4.7 installation because it includes both necessary starting components, lists familiar replacement identifiers, and covers a wide range of compact appliances. It is less appropriate when the user has not identified the original part number, cannot determine the pin count, or cannot confirm that the compressor is within the electrical range.
Convenience for Common Repairs
The package avoids the need to purchase a relay and overload separately. That is particularly useful for repair kits, property maintenance, or owners keeping spare parts for compatible small appliances.
Match the Original Terminal Layout
One-pin compatibility should be confirmed by the removed component’s number and terminal count. Similar-looking relay housings are not enough to establish electrical compatibility.
We may earn a commission when you buy through this link, at no additional cost to you.
8. BlueStars Two-Pack W10613606 – Best Premium Two-Piece Repair Set
BlueStars Two-Pack W10613606
Two complete relay-capacitor units
W10613606 model number
Extensive major-brand coverage
Addresses common cooling faults
The BlueStars 2 Packs W10613606 Refrigerator Compressor Start Relay and Capacitor provides two combined replacement assemblies. Its 4.2 rating aligns with the single-pack version of the same model, while the two-unit format offers useful value for owners of two compatible refrigerators, maintenance professionals, or households seeking a spare. The set is specifically tied to W10613606 rather than serving as a generic compact-fridge kit.
Pros
- Two complete assemblies included
- Convenient for multiple appliances
- Extensive part-number cross-references
- Broad named-brand compatibility
Cons
- Only for matching W10613606 systems
- Two units may exceed one repair need
We may earn a commission when you buy through this link, at no additional cost to you.
The listed brand coverage includes Amana, Kenmore, Maytag, Whirlpool, KitchenAid, Jenn-Air, Litton, Crosley, Dacor, Admiral, Hardwick, Magic Chef, and Inglis. Example Kenmore models include 59676579601, 59676582501, 59676582701, 59676583600, 59676589600, and 59677539600, while the description names several Whirlpool GB2SHDX models. Cross-reference numbers include 14217273, 67003186, 67003764, 67005560, 67005561, 67005562, 8171210, 8208290, 8208368, C8931605, W10416065, W10613606VP, and PS8746522.
The primary benefit is having two complete units without sourcing matched pairs separately. Each assembly combines a start relay and run capacitor, which is the configuration described for the W10613606 system. The drawback is that the same specificity remains: a different compressor system will not benefit simply because the refrigerator bears a familiar brand. The measures and replacement model on the old component must be checked carefully.
The stated purpose is to correct a refrigerator that will not start or remains too warm in the refrigerator, freezer, or both sections. These broad symptoms warrant basic diagnosis before replacement. A start relay and capacitor can fail, but a compressor with a shorted winding, a defective thermostat, an open wire, or a refrigerant problem can imitate the same outward behavior.
This is the premium recommendation for a buyer who has confirmed W10613606 compatibility and wants complete assemblies or has multiple matching appliances. The manufacturer-specific approach reduces uncertainty compared with a generic relay, provided the buyer does proper cross-reference verification. Keeping a spare can also reduce downtime if a similar component later fails, although future compatibility still depends on the appliance model.
A Complete Spare-Parts Solution
Two integrated assemblies provide both convenience and redundancy. They are particularly practical for service providers or households operating more than one compatible refrigerator.
Model-Specific Fit
A long list of brands and cross-reference numbers supports identification, but the original W10613606 marking and physical configuration remain the final authority. The listing explicitly asks buyers to check measurements and replacement numbers.
We may earn a commission when you buy through this link, at no additional cost to you.
9. Five-Set Relay and Overload Kit – Best for Multi-Appliance Maintenance
Five-Set Relay and Overload Kit
Five complete repair sets
4.7-ohm one-pin relays
6750C-0005P overload protectors
Sixth-horsepower protector rating
The Refrigerator Compressor Relay and Overload Kit with five sets is intended for technicians, landlords, repair shops, or households that service several compatible compact appliances. It has a 4.4 rating and includes five 4.7-ohm, one-pin PTC starter relays and five 6750C-0005P refrigerator overload protectors. The package is described as five complete sets, giving the buyer several replacement combinations at once.
Pros
- Five ready-to-use sets
- Useful for multiple appliances
- Broad compact-fridge compatibility
- Durable listed materials
Cons
- Excess inventory for one repair
- Limited to one-pin relay design
We may earn a commission when you buy through this link, at no additional cost to you.
The components are listed for mini refrigerators, compact refrigerators, beverage and beer coolers, deep freezers, wine refrigerators, and wine centers. Brand examples include Vissani, Danby, Vinotemp, EdgeStar, Summit, Whirlpool, Frigidaire, Kenmore, Maytag, Haier, Igloo, and Magic Chef. The material description identifies plastic for the starter relay and stainless steel for the overload protectors, with an emphasis on durability and direct replacement.
The one-pin QP2-4R7 configuration is the central fit requirement. Users should not assume that every listed brand uses the same relay in every model. The compressor’s electrical requirements, the overload parameter, the terminal arrangement, and the physical mounting position should all be checked. Even a well-known appliance brand can have different compressor starting systems across product lines and production years.
The bulk format makes this kit a different kind of recommendation from the single-repair options. It has clear value when several appliances use the same configuration, but it is less rational for a homeowner replacing one relay. The spare pieces can also be useful in a workshop, rental property, or small service inventory where predictable component type matters.
For a multi-unit maintenance operation, this is one of the more practical options because it reduces repeated sourcing and ensures a matching stock of starters and overloads. It is not a universal relay assortment. Confirm the one-pin specification, resistance, overload type, and application before purchasing in volume.
Efficient Multi-Unit Stocking
Five identical sets streamline repairs across several compatible appliances. The format can reduce repeated purchasing and help service technicians keep a known component configuration on hand.
Consistent Replacement Parts
Using the same relay and overload specification across eligible appliances simplifies records and part management. Each unit still needs an individual compatibility check because brand names alone are not sufficient.
We may earn a commission when you buy through this link, at no additional cost to you.
10. Two-Set One-Pin Starter Kit – Balanced Two-Repair Solution
Two-Set One-Pin Starter Kit
Two complete replacement sets
4.7-ohm one-pin PTC relay
6750C-0005P overload protector
Brass and plastic construction
The 2 Pack QP2-4.7/4R7 1 Pin Refrigerator Starter Relay and Overload Protector provides two matched repair sets. It carries a 4.4 rating and includes two 4.7-ohm, one-pin PTC starter relays and two 6750C-0005P overload protectors. For someone repairing one compact appliance while retaining a spare, or servicing two matching units, this quantity offers a practical middle ground between a single kit and a larger maintenance pack.
Pros
- Two complete sets included
- Balanced multi-repair quantity
- Familiar cross-reference numbers
- Protective outer packaging
Cons
- Only for one-terminal QP2 systems
- Not compatible with other pin counts
We may earn a commission when you buy through this link, at no additional cost to you.
The product is intended for most brands using the one-terminal QP2 4.7-ohm resistance. Listed applications include mini fridges, compact refrigerators, beverage and beer coolers, chest freezers, deep freezers, and wine or beer refrigerators. The overload is associated with replacement numbers including AP4439459, 1357963, AH3529540, EA3529540, and PS3529540.
The relay is described as plastic, while the overload is described as brass, with both materials presented as durable and resistant to rust. The components are intended for direct replacement, and the outer package uses a white paper box for protection. These construction and packaging details are modest but relevant to buyers replacing a small component that may be stored for an extended period before a future repair.
Compatibility remains the central concern. A one-terminal QP2 relay cannot be treated as interchangeable with a two- or three-terminal model, and the product description emphasizes that distinction. The compressor’s current requirements, the original wiring, and the overload’s suitability should be confirmed before installation. A relay replacement also will not resolve a failed compressor, thermostat, controller, or refrigerant problem.
This kit is well suited to owners of one or two compatible small appliances who prefer a spare or want to perform two repairs without ordering twice. It is less economical for a single repair than a basic one-set option, but it avoids overstocking a large five-set package. Its balance of quantity, known part numbers, and 4.4 rating makes it a credible compact-appliance repair choice.
Useful Quantity for Common Owners
Two sets provide a spare without the overhead of a multi-unit service pack. That makes the package approachable for households that maintain a mini fridge, beverage cooler, or wine refrigerator.
Protective Materials and Packaging
The use of brass in the overload and protective outer packaging may help during handling and storage. Actual longevity still depends on correct electrical matching, installation quality, and the condition of the rest of the starting circuit.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best Relay Switch for Refrigerator
The safest relay purchase begins with the failed component rather than the refrigerator’s brand. Use the part number, resistance, pin count, electrical ratings, terminal layout, and appliance model to narrow the field before considering convenience or package quantity.
Confirm the Original Part Number
The clearest starting point is the number printed on the component being replaced. It may be a manufacturer-specific identifier such as W10613606, W10189190, or W10662129, or it may be a generic starter designation such as QP2-4.7 or QP2-4R7. Cross-reference numbers can help confirm a match, but they should not replace checking the physical part. A part that is similar in shape can differ in resistance, terminal count, mounting method, or role in the circuit.
Match Pin Count and Terminal Layout
One-pin, two-pin, and three-pin starters are not automatically interchangeable. The number of terminals affects how the relay interacts with the compressor and capacitor, and a mismatch may prevent the compressor from starting or may create an unsafe connection. Compare the number and placement of terminals, wire orientation, and connector style. Do not adapt terminals, combine incompatible relay styles, or install a relay based only on its exterior housing.
Understand Resistance and Electrical Ratings
A 4.7-ohm PTC relay may be offered in several terminal configurations, but resistance alone does not establish full compatibility. Review the stated maximum current, supported compressor horsepower, voltage, and frequency. The listings in this guide describe limits ranging from an eight-ampere relay ceiling to twelve amps, while overload capacities vary by product. Those figures must be compared with the appliance specifications rather than treated as marketing details.
Identify the Appliance Type
Mini fridges, wine coolers, beverage coolers, chest freezers, and full-size refrigerators can use entirely different starting components. A compact 4.7-ohm PTC starter may be appropriate for a small appliance but unsuitable for a full-size model. Full-size assemblies such as W10613606 and the TSD2 combination are more likely to require manufacturer-specific identification. The appliance’s complete model number is more informative than a broad brand name.
Determine Whether a Capacitor Is Required
Some repairs need a starter relay and overload protector together. Others call for a relay, overload, and run capacitor, as with the TSD2 and W10662129 combination. A starter relay controls the initial surge used to begin compressor movement, while a run capacitor supports continued operation. Replacing only one of these components can leave the starting or running circuit incomplete. Compare the old assembly and the appliance wiring diagram before choosing a single-part or combined-parts package.
Assess Installation Requirements
Some parts fit as direct replacements, while others require attention to terminal wiring, component orientation, and secure mounting. A PTC relay handles a substantial inrush current, so a loose connection can create heat or intermittent starts. The refrigerator should be disconnected from power, and wiring should be inspected for damage, corrosion, or heat damage. Anyone uncomfortable with high-current compressor wiring should use a qualified appliance technician.
Check Package Quantity Against Actual Need
Single sets are usually most practical for one repair. Two sets are useful when maintaining a compact fridge and cooler with the same configuration, and five-set packs make more sense for service work or multiple properties. A larger pack does not improve compatibility, and excess parts can remain unused for years. The best quantity is the smallest amount that meets the repair plan and allows a sensible spare without unnecessary duplication.
Consider the Failure Symptoms
A relay is a sensible suspect when the compressor repeatedly clicks without starting, the compressor becomes unusually hot, or the relay is visibly scorched. It is less conclusive when the appliance is merely warm, the fan runs but the compressor never engages, or cooling gradually declines. Those patterns may indicate a thermostat, control board, compressor, refrigerant, or airflow problem. Diagnosing the circuit first prevents replacing a sound relay when another component is responsible.
How to Use and Care for Your Relay Switch for Refrigerator
Begin by unplugging the refrigerator or switching off its breaker and waiting for the internal capacitors to discharge safely. Locate the existing relay and overload, photograph their wiring, and compare the numbers, terminal count, resistance, and physical mounting points with the replacement. If the old component is damaged, inspect the compressor wiring and surrounding plastic for heat discoloration, melted insulation, or corrosion.
Transfer the new component into the correct position and reproduce the original wire routing. A PTC starter commonly connects to a compressor terminal and a capacitor, while the overload connects between the compressor’s common line and the power feed. The exact arrangement varies by appliance, so follow the service diagram or the original layout rather than relying on general terminal color assumptions. Tighten connections securely without exposing conductive strands outside the terminals.
After installation, restore power and observe the appliance without leaving it unattended for long. A normal start should produce a brief hum and then steady compressor operation, with cooling beginning after an appropriate delay. Repeated clicking, repeated rapid restarts, a burning smell, visible scorching, or continued overheating indicates that the replacement did not resolve the underlying issue. Disconnect power and consult a qualified technician rather than repeatedly resetting the appliance.
Frequently Asked Questions
How do I know which refrigerator relay switch I need?
Start with the part number printed on the old relay and confirm the pin count, resistance, wiring position, and electrical ratings. Then check the refrigerator’s complete model number against the replacement list. Similar appearance and familiar brand names are not enough, because several relay styles can be used within the same appliance family.
Can I use a 4.7-ohm PTC relay in any refrigerator?
No. A 4.7-ohm starter may have one, two, or three terminals, and each configuration is designed for particular wiring arrangements. The relay must also satisfy the compressor’s voltage, current, horsepower, and starting requirements. Verify all of those specifications before purchasing or installing one.
What causes a refrigerator compressor to click repeatedly?
A failed starter relay or overload is one possible cause, often producing a click every few minutes. A seized compressor, low refrigerant, thermostat problem, control-board fault, or damaged wiring can create similar behavior. Replacing the relay is most likely to help when the start cycle is clearly reaching the relay and the compressor itself remains mechanically functional.
Do I need to replace the overload protector with the relay?
It is often sensible because the overload and relay form a matched starting system, and both can wear or fail. However, the overload’s current rating and parameters must match the compressor. A generic protector with a different rating may fail too early or fail to protect the compressor.
Is a W10613606 relay and capacitor suitable for mini fridges?
Only when the mini fridge specifically uses the W10613606 configuration and its associated wiring. Most mini fridges instead use a simpler 4.7-ohm PTC starter with one, two, or three terminals. Check the removed part and appliance documentation rather than assuming the full-size assembly will fit.
Can I install a refrigerator relay myself?
A knowledgeable homeowner can often replace a plug-in relay or overload after unplugging the appliance and carefully reproducing the original wiring. Start relays handle a powerful inrush current, and incorrect wiring can damage the compressor or create a fire risk. Use a qualified appliance technician if the wiring is unclear, burned, or inaccessible.
What is the difference between a start relay and a run capacitor?
The start relay briefly boosts the compressor’s electrical input to get the motor moving, then disconnects after startup. The run capacitor remains in the circuit to help the compressor run efficiently. A relay-only repair is appropriate for some appliances, while others require both components as a matched set.
Why is my new relay not making the refrigerator cool?
The relay may only be one part of the failure, or it may not match the original system correctly. A seized compressor, lost refrigerant, thermostat or controller fault, blocked airflow, and damaged wiring can prevent cooling even after a new relay is installed. Confirm the wiring and diagnosis before assuming the replacement part is defective.
Final Thoughts on Choosing the Best Relay Switch for Refrigerator
The BlueStars W10613606 relay-and-capacitor assembly is the best overall choice for a compatible full-size refrigerator because it combines a defined replacement number with extensive cross-references. The QP2-4R7 three-pin kit stands out as the best budget option for a compatible compact appliance, while the TSD2 starter and run capacitor combination offers the most technically specific premium repair.
The recurring theme across all ten products is that correct identification matters more than a broad compatibility claim. Check the old component’s number, terminal count, resistance, interface size, current rating, horsepower, voltage, and wiring arrangement. Then confirm that the symptom is consistent with a starting-system failure rather than a compressor, refrigerant, thermostat, or control problem.
Finally, review the current product listing, rating, availability, and price before ordering, since all three can change. Use the manufacturer’s diagram and the removed part as your final references, and seek professional service when the wiring is inaccessible, visibly damaged, or beyond your experience. A carefully matched relay switch can restore cooling efficiently, but only when it is the right part for the refrigerator.