QP2-4R7 4.7 Ohm 3-Pin Starter Relay Kit
4.7Editor score
Includes starter and overload
Supports 1/12 to 1/2 HP
Three-pin 4.7-ohm configuration
Broad compact-appliance compatibility
In this guide
A refrigerator relay switch is a small but essential component in the compressor starting system. Choosing the right model requires matching pin count, resistance, wattage, connector layout, and compressor specifications to the appliance rather than relying on a general brand label.
This guide compares ten relay and starter kits by examining stated replacement numbers, electrical limits, terminal configurations, compatible appliance types, included overload protectors, and the symptoms each product is designed to address. It covers both compact-cooler relays and combination start relay and capacitor assemblies.
Each review explains where the product is most useful, what compatibility details matter, and which tradeoffs deserve attention. The comparison table highlights the main differences, while current pricing and availability should be checked before making a final purchase decision.
Top 3 Picks for Best Relay Switch for Refrigerator
BlueStars W10613606 Start Relay Capacitor
4.2Editor score
Combined relay and capacitor
Extensive replacement-number coverage
Supports major refrigerator brands
Designed for common cooling failures
BlueStars Two-Pack W10613606 Relay Capacitor
4.2Editor score
Two complete relay-capacitor units
Broad OEM replacement coverage
Major-brand compatibility listed
Lifetime protection stated
Top 10 Best Relay Switch for Refrigerator in 2026 Compared
The table below compares the ten options by configuration, electrical rating, included protection, and typical installation context. Compatibility remains appliance-specific, so the original part number, terminal count, and compressor requirements should always be verified.
ProductsSpecificationsEditor scorePrice
Editor's Choice
BlueStars W10613606 Relay Capacitor
Relay and capacitor assembly
W10613606 model designation
Major refrigerator brand support
Multiple replacement numbers
4.2Editor score
Editor's Choice
QP2-4R7 Three-Pin Starter Kit
4.7-ohm three-pin relay
Includes overload protector
Supports 1/12–1/2 HP
110V 60Hz operation
4.7Editor score
Best Premium
TSD2 Relay and Run Capacitor
TSD2 starter relay
W10662129 run capacitor
Supports compressors up to 1/4 HP
6.3mm relay interface
4.1Editor score
QP2-4.7 Two-Pin Starter Kit
4.7-ohm two-pin relay
Includes overload protector
Maximum relay current 8A
Suits compact cooling appliances
4.7Editor score
Mudder One-Pin Starter Kit
4.7-ohm one-pin relay
6750C-0005P overload
Maximum overload current 15A
For compact refrigerators
4.3Editor score
QP-02-4.7 Three-Pin Starter Kit
4.7-ohm three-pin relay
Includes 1/2 HP overload
Maximum relay current 12A
110V compressor application
4.3Editor score
QP2-4.7 One-Pin Starter Kit
4.7-ohm one-pin relay
Includes 1/2 HP overload
Maximum relay current 12A
For mini cooling appliances
4.3Editor score
BlueStars Two-Pack W10613606
Two relay-capacitor assemblies
W10613606 model designation
Multiple replacement numbers
Major-brand compatibility
4.2Editor score
Five-Set QP2-4R7 Starter Kit
Five one-pin relay sets
6750C-0005P overloads
1/6 HP overload specification
Compact-appliance applications
4.4Editor score
Two-Set QP2-4.7 Starter Kit
Two complete replacement sets
4.7-ohm one-pin relays
6750C-0005P overloads
Brass and plastic construction
4.4Editor score
1. BlueStars W10613606 Relay Capacitor – Best Overall Refrigerator Compatibility
BlueStars W10613606 Relay Capacitor
Combined relay and capacitor
W10613606 replacement model
Supports major appliance brands
Multiple listed part numbers
The BlueStars W10613606 is a combined compressor start relay and capacitor rated 4.2 stars by customers. It stands out because it targets a broad family of full-size refrigerators and lists many established replacement numbers, giving buyers more ways to confirm a match before ordering.
Pros
- Combines two critical components
- Broad replacement-number coverage
- Supports many major brands
- Addresses several cooling symptoms
- Manufacturer testing stated
Cons
- Must match exact model
- Lifetime protection requires review
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Its appeal is the integrated design. A single assembly replaces the W10613606 start relay and capacitor rather than requiring a search for two separate components. The listed compatibility covers Amana, Kenmore, Maytag, Whirlpool, KitchenAid, Jenn-Air, Admiral, Magic Chef, Inglis, and other brands. Replacement numbers include 14217273, 67003186, 67003764, W10416065, and PS8746522.
The product is described as addressing a refrigerator that will not start, a warm refrigerator compartment, a warm freezer section, or both sections remaining too warm. That broad symptom list is useful during diagnosis, although a relay is only one possible cause and the part does not establish that the compressor or refrigerant system is healthy.
This is the strongest general choice for a full-size refrigerator whose failed component carries the W10613606 number. Compare the old part, model number, connector arrangement, and physical dimensions before purchase. The seller also invites buyers to provide their refrigerator model for a compatibility check, reducing the risk of choosing based only on a familiar brand name.
A Streamlined Full-Size Refrigerator Repair
Combining the starter relay and run capacitor simplifies parts selection and installation planning. It is especially useful when the original assembly uses the listed W10613606 configuration and the appliance is covered by the stated compatible models.
Extensive Compatibility Information
The unusually long list of replacement numbers gives owners several ways to cross-check fit. Nevertheless, the model number, dimensions, and connector layout remain more reliable than brand compatibility alone.
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2. QP2-4R7 Three-Pin Starter Kit – Best Compact-Cooler Value
QP2-4R7 Three-Pin Starter Kit
4.7-ohm three-pin PTC relay
Includes refrigerator overload protector
Rated 1/12 to 1/2 HP
Designed for 110V 60Hz
This QP2-4R7 kit carries a 4.7-star rating, the highest among the products in this guide. It combines a 4.7-ohm, three-pin PTC starter relay with a refrigerator overload protector, making it a practical choice when both components need inspection or replacement.
Pros
- Highest listed customer rating
- Relay and overload included
- Wide compact-appliance brand coverage
- Clear horsepower range
- Useful multi-brand replacement numbers
Cons
- Three-pin configuration required
- Limited to stated electrical range
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The listed overload specification covers compressors from 1/12 HP through 1/2 HP at 110V and 60Hz. The relay replaces QP2-4R7, QP2-4.7, QP2-4.7G12, WS-EP14F, 6R8MD3, AP4565041, 1206682, and 3990100070. The overload section also lists several LG-related reference numbers.
Compatibility is presented across Vissani, Danby, EdgeStar, Summit, Whirlpool, Frigidaire, Kenmore, Haier, Igloo, and Magic Chef appliances. That makes the kit relevant to mini refrigerators, compact coolers, and other compressor-based cooling appliances that use the specified three-terminal arrangement.
It is a compelling budget-oriented choice when the old relay is a three-pin 4.7-ohm unit and the compressor falls within the stated horsepower range. A terminal-count mismatch is the main concern; compare the original component carefully rather than relying on the broad brand list. Unplug the appliance and confirm all electrical requirements before installation.
One Kit Covers Two Core Functions
The included starter relay and overload protector provide the two commonly serviced components in a compact cooling system. This reduces the need to source matching pieces separately.
Clear Electrical Boundaries
The stated 110V, 60Hz, and 1/12–1/2 HP range helps prevent an oversized or undersized replacement. Confirm those specifications and the three-terminal layout before purchasing.
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3. TSD2 Relay and Run Capacitor – Best Matched Two-Part Assembly
TSD2 Relay and Run Capacitor
TSD2 starter relay
W10662129 run capacitor
Compressors up to 1/4 HP
Relay interface measures 6.3mm
The W10197428 and W10189190 TSD2 combination is built around two distinct refrigerator components and has a 4.1-star customer rating. The package includes a W10189190 TSD2 starter relay and a W10662129 compressor run capacitor, making it a more specialized alternative to integrated relay-capacitor housings.
Pros
- Matched relay-capacitor pairing
- Explicit interface measurements
- Clear horsepower limitation
- Extensive replacement lists
- Addresses clicking and cooling symptoms
Cons
- Restricted to 1/4 HP
- Capacitor interface is 4.8mm
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The relay is intended for compressors rated at or below 1/4 HP and uses a stated 6.3mm interface. The capacitor uses a 4.8mm interface. These measurements are particularly useful because visually similar components can have different terminal spacing, and the manufacturer explicitly asks buyers to confirm model, power, and interface size.
Stated brand coverage includes Kenmore, Whirlpool, Amana, Maytag, Norse, Roper, KitchenAid, Jenn-Air, Magic Chef, and Estate. The product is associated with symptoms including failure to start, clicking, poor cooling, and excessive heat. It also carries a long list of superseded relay and capacitor part numbers.
Choose this option when the failed starter is TSD2, the compressor is within the stated power limit, and both interface measurements match. It is less forgiving than a universal-looking compact-cooler kit, but its specificity can be valuable for full-size refrigerators and repair technicians working from part numbers.
Interface Measurements Reduce Guesswork
The 6.3mm relay and 4.8mm capacitor measurements provide concrete checks beyond model names. Measuring the removed components can prevent connector fit problems and electrical damage.
Designed for Smaller Compressors
The stated ceiling of 1/4 HP is essential. The product is not a universal solution for larger compressor systems, and installing it outside the listed limits may lead to overheating or fitting problems.
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4. QP2-4.7 Two-Pin Starter Kit – Best for Two-Terminal Compact Appliances
QP2-4.7 Two-Pin Starter Kit
4.7-ohm two-pin PTC relay
Includes overload protector
Maximum current reaches 8A
Suits compact cooling appliances
The QP2-4.7 two-pin starter kit has a 4.7-star rating and is tailored to a less common terminal configuration than the one- and three-pin alternatives. It includes a 4.7-ohm PTC relay and a refrigerator overload protector for direct replacement in compatible appliances.
Pros
- High customer rating
- Two-terminal configuration specified
- Includes thermal overload
- Broad compact-appliance use
- Simple direct-replacement format
Cons
- Eight-amp relay limit
- Not for three-terminal systems
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The product description identifies mini fridges, compact refrigerators, beverage coolers, wine coolers, deep freezers, and chest freezers as suitable applications. Replacement references include AP4439459, 1357963, AH3529540, EA3529540, and PS3529540, giving owners several identifiers to compare with the failed part.
A maximum current of 8A is stated for the PTC relay. This figure is a meaningful limit, and the listing warns that operation beyond it may cause failure. The two-terminal layout is equally important: a visually similar three-pin relay will not be an interchangeable substitute.
This is a strong pick for a small cooling appliance with a two-pin, 4.7-ohm starter relay and a compatible overload. Confirm the physical pin count, current draw, and original replacement number before ordering. Its focused specification is a feature, allowing owners to avoid a kit designed for a different connector arrangement.
Purpose-Built Two-Terminal Fit
The two-pin configuration gives owners of matching appliances a clearer alternative to widely sold one-pin and three-pin kits. Comparing the original relay is the safest way to establish compatibility.
Protection for Compact Cooling Systems
The included overload protector supports the compressor's thermal protection system. Keeping the protector within its specified limits is important for safe, effective operation.
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5. Mudder One-Pin Starter Kit – Best Standard Mini-Fridge Replacement
Mudder One-Pin Starter Kit
4.7-ohm one-pin PTC relay
6750C-0005P overload protector
Maximum overload current 15A
Plastic and brass construction
The Mudder QP2-4.7 kit provides a four-piece practical package: one 4.7-ohm, one-pin PTC starter relay and one 6750C-0005P overload protector. Its 4.3-star rating reflects broad interest among owners repairing mini fridges and compact coolers.
Pros
- Familiar one-pin format
- Includes matched overload protector
- States fifteen-amp overload limit
- Works across several cooler types
- Describes common failure symptoms
Cons
- Only fits one-terminal relays
- High-current systems need different protector
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The overload protector replaces AP4439459, 1357963, AH3529540, EA3529540, and PS3529540. The relay is specifically limited to the QP2-4.7 one-terminal format, so buyers should not treat the product as a universal relay regardless of resistance. The protector has a stated maximum current of 15A.
Applications include mini fridges, compact refrigerators, beverage and beer coolers, deep freezers, and wine refrigerators. The listing connects the components to a compressor that does not start, burns hot, or produces a click-clack sound every three to five minutes after power is applied.
This is a sensible option for the common one-pin configuration, especially when the old overload is visibly damaged. The warning against using the protector on a high-current system is important: compact-appliance specifications do not transfer automatically to larger refrigerators. Verify compressor requirements and part numbers before installation.
Recognizable One-Pin Configuration
The QP2-4.7 one-terminal relay is common across many small cooling appliances. This focused fit makes the kit easier to select than a relay that claims to accommodate several unrelated pin arrangements.
Understand the Overload Limit
The fifteen-amp maximum applies to the protector, not automatically to every refrigerator. A high-current compressor requires a protector with the appropriate rating, as stated in the product information.
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6. QP-02-4.7 Three-Pin Starter Kit – Best Installation Guidance
QP-02-4.7 Three-Pin Starter Kit
4.7-ohm three-pin relay
Includes 1/2 HP overload
Maximum relay current 12A
Restricted to 110V compressors
The QP-02-4.7 three-pin kit combines a 4.7-ohm starter relay with a 1/2 HP refrigerator overload protector. It has a 4.3-star rating and distinguishes itself through unusually specific electrical guidance and a clear warning that it is limited to 110V compressors.
Pros
- Detailed terminal wiring guidance
- Clear three-pin restriction
- Specified current and voltage limits
- Includes matching overload protector
- Addresses common start failures
Cons
- Professional installation recommended
- Only suitable for 110V systems
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The package is not intended to fit relays with other pin counts. The relay has a stated maximum current of 12A, while the overload is associated with a 1/2 HP compressor rating. Buyers are encouraged to compare the supplied images with the removed components before ordering.
Its installation notes call for the refrigerator to be unplugged, gloves to be worn, and work to be performed by a qualified maintenance technician. The description outlines connecting the protector to the live wire, the relay's second terminal to neutral, and terminals one and three to a capacitor when one is present.
This kit is most useful for a three-terminal, 4.7-ohm starter in a compatible 110V compact appliance. The detailed wiring section is helpful, but the safety guidance should be followed closely. A start relay can be only one part of the problem, so compressor condition, controller operation, wiring, and refrigerant-related issues should also be considered.
Specific Wiring Reduces Connection Errors
The terminal guidance gives repairers a concrete reference for connecting the relay and overload. It should be reconciled with the appliance's wiring diagram before any wires are moved.
Current and Voltage Matter
The 12A relay ceiling and 110V-only limitation are central compatibility requirements. They help distinguish this kit from options intended for different compressor systems.
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7. QP2-4.7 One-Pin Starter Kit – Best for Commonly Sold Compact Kits
QP2-4.7 One-Pin Starter Kit
4.7-ohm one-pin PTC relay
Includes 1/2 HP overload
Maximum relay current 12A
Targets mini cooling appliances
This one-pack QP2-4.7 relay and overload kit is designed around the common one-terminal PTC starter used in many small cooling appliances. It has a 4.3-star rating and provides both replacement components in a single package.
Pros
- Common one-pin configuration
- Relay and overload included
- Clear twelve-amp current limit
- Suitable for many cooler types
- Straightforward direct replacement
Cons
- Not a multi-terminal relay
- Twelve-amp limit restricts use
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The relay is rated at 4.7 ohms, and the included overload is listed for a 1/2 HP compressor. The product notes that a 4.7-ohm PTC relay should not be operated beyond 12A. It replaces common reference numbers including AP4439459, 1357963, AH3529540, EA3529540, and PS3529540.
The listed applications include mini fridges, compact refrigerators, beverage coolers, wine and beer coolers, deep freezers, and chest freezers. The product is marketed as an easy direct replacement, which is convenient for a failed relay with the same physical and electrical configuration.
This is a good general choice for a one-pin mini-fridge relay, though the 12A limitation deserves attention. Confirm that the compressor is compatible, the original relay has one terminal, and the overload matches the appliance. It should not be selected merely because the appliance uses a compressor.
Convenient Combined Replacement
Owners can replace the PTC relay and overload together, which is useful when both components show wear or when the original overload is difficult to source separately.
Respect the Twelve-Amp Limit
Operating above the stated current can shorten component life or cause failure. Use the kit only when the appliance's compressor and wiring fall within its listed electrical range.
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8. BlueStars Two-Pack W10613606 – Best Spare Coverage for Major Brands
BlueStars Two-Pack W10613606
Two relay-capacitor assemblies
W10613606 model designation
Extensive replacement numbers
Broad major-brand compatibility
The BlueStars two-pack provides two W10613606 compressor start relay and capacitor assemblies. It has a 4.2-star rating and offers the same broad full-size refrigerator compatibility as the single-unit version while adding a spare for future use.
Pros
- Two complete assemblies included
- Combines relay and capacitor
- Strong brand and model coverage
- Lifetime protection stated
- Useful for maintaining a spare
Cons
- Unnecessary for single-unit repairs
- Exact model verification still required
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The listed brand coverage includes Amana, Kenmore, Maytag, Whirlpool, KitchenAid, Jenn-Air, Litton, Crosley, Dacor, Admiral, Hardwick, Magic Chef, and Inglis. Model references include several Kenmore 596-series units and Whirlpool GB2SHDX-series models. Replacement numbers cover W10416065, PS8746522, 67003186, 67003764, 8171210, 8208290, and others.
Each assembly is described as meeting OEM standards and being made from durable material. The product is associated with failure to start and insufficient cooling in the refrigerator, freezer, or both compartments. Lifetime protection is also stated, subject to the seller's applicable terms.
This is the premium pick for households or maintenance professionals who want two complete assemblies or already know that the W10613606 is the correct replacement. It is not automatically the best value for a one-time repair, and neither brand familiarity nor a similar appearance can replace checking the model, measurements, and part number.
Useful Spare for Repeated Failures
Two complete assemblies are useful for a second compatible appliance, a workshop, or owners who prefer to keep a known-matching replacement on hand.
Major-Brand Model Coverage
The detailed brand and model references make verification more practical. Owners should still locate the original W10613606 marking and compare the replacement dimensions before installation.
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9. Five-Set QP2-4R7 Starter Kit – Best Multi-Appliance Maintenance Pack
Five-Set QP2-4R7 Starter Kit
Five one-pin relay sets
6750C-0005P overload protectors
1/6 HP overload specification
Broad compact-appliance support
The five-set QP2-4R7 package contains five 4.7-ohm, one-pin PTC starter relays and five 6750C-0005P overload protectors. Its 4.4-star rating makes it appealing to maintenance professionals or households that service several compact cooling appliances.
Pros
- Five complete replacement sets
- Useful for multiple appliances
- Plastic and stainless construction
- Broad cooler brand coverage
- Direct-replacement design
Cons
- Excess inventory for one repair
- Restricted to one-pin applications
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The relays and overloads are intended for mini refrigerators, compact refrigerators, beverage and beer coolers, deep freezers, and wine refrigerators. Brand references include Vissani, Danby, Vinotemp, EdgeStar, Summit, Whirlpool, Frigidaire, Kenmore, Maytag, Haier, Igloo, and Magic Chef.
The relays are described as plastic, while the overload protectors are described as stainless steel. The package identifies the overloads as 1/6 HP models, so this is a kit for equipment within that class rather than a general answer for every refrigerator compressor.
The primary advantage is inventory depth: five complete sets can support several repairs or provide a useful stock of common compact-appliance parts. For a single household appliance, the extra components may be unnecessary. Confirm the one-terminal layout, overload model, horsepower class, and original part number before ordering.
Efficient Multi-Unit Stock
A five-set package is useful for repair shops, property managers, or owners of several compatible coolers. It reduces repeated sourcing of the same common compact-appliance components.
Not a General Full-Size Kit
The one-pin relay and 1/6 HP overload are specific components. Larger refrigerators may use a different relay, interface, or overload and should not be serviced with this package without verification.
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10. Two-Set QP2-4.7 Starter Kit – Best Two-Unit Compact Repair Pack
Two-Set QP2-4.7 Starter Kit
Two complete relay sets
4.7-ohm one-pin relay
6750C-0005P overload protector
Plastic and brass construction
The two-pack QP2-4.7 kit includes two 4.7-ohm, one-pin starter relays and two 6750C-0005P overload protectors, creating two complete replacement sets. It has a 4.4-star rating and offers a middle ground between a single kit and a larger maintenance inventory.
Pros
- Two complete repair sets
- Familiar one-pin design
- Brass and plastic materials
- Broad compact-cooler application
- Outer packaging protection
Cons
- Limited to one-terminal relays
- Not suitable for every compressor
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The product is intended for appliances using the one-terminal QP2-4.7 format. Its overload protector is associated with AP4439459, 1357963, AH3529540, EA3529540, and PS3523540. Applications include mini fridges, compact refrigerators, beverage coolers, wine and beer refrigerators, chest freezers, and deep freezers.
The relay is made from plastic and the overload from brass, both described as durable and rust resistant. The package also uses a white paper box for outer packaging protection. These construction details may be reassuring, but the electrical configuration remains more important than general material quality.
This kit is a sensible choice for a household with two compatible cooling appliances or for a technician who prefers a small spare. It is not appropriate if either appliance uses a two-pin or three-pin relay, and the original compressor requirements should be checked. The included overload should also match the failed component and appliance class.
Two Ready-to-Install Sets
Each relay and protector pair provides a convenient repair unit. The two-pack format supports multiple compatible appliances or keeps a spare set available for a recurring fault.
Configuration Controls Compatibility
The one-terminal relay and 6750C-0005P protector define the kit's intended use. Comparing both the physical part and electrical rating prevents a mismatch with different compact appliances.
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Buying Guide – How to Choose the Best Relay Switch for Refrigerator
A refrigerator relay must match the appliance mechanically and electrically. Before comparing brands, identify the existing component, document its model and connector layout, and confirm the compressor's voltage, current, horsepower class, and circuit arrangement.
Match the Original Part Number
Choose only when the manufacturer, retailer, or appliance documentation confirms the replacement is equivalent. An unmatched part number is a warning, not a minor detail.
Count the Relay Terminals
Treat the old relay as the primary template. If the pin count, connector shape, or measurements differ, discontinue the purchase and locate the correct replacement.
Verify Resistance and Current
Match voltage, current, resistance, and horsepower requirements together. Matching resistance alone does not make a relay safe.
Check Compressor Horsepower
Find the compressor rating before ordering. If it is unknown, service a mini fridge and a full-size refrigerator are not interchangeable projects.
Confirm Voltage and Frequency
Use the appliance's electrical label as the source of truth. A visually matching relay with incompatible electrical specifications should not be installed.
Choose the Right Component Set
Compare what the failed appliance actually uses before choosing a bundle. Extra components are useful only when they are electrically and mechanically correct.
Consider the Appliance Type
Use the appliance category to narrow the field, then verify the exact part. Never substitute based on exterior dimensions or brand alone.
Review Safety and Installation Guidance
If the wiring is unclear, the appliance has burned connectors, or the compressor shows other faults, pause the repair and seek qualified service.
How to Use and Care for Your Relay Switch for Refrigerator
Begin by recording the refrigerator model and the complete number on the old relay, overload, or capacitor. Unplug the appliance and allow time for internal capacitors to discharge before touching components. Remove the old part without pulling on the wires, photograph the terminal arrangement, and compare the new component's part number, pin count, connector spacing, resistance, voltage, current, and horsepower rating.
Install the replacement in the same position with the wiring routed as it was. Connect terminals according to the appliance diagram and the component instructions, tighten connectors securely, and check that no exposed conductor is touching the compressor housing or cabinet. A relay that is installed backward, pushed onto the wrong pins, or paired with an incorrect capacitor can overheat even if the part number appears close.
Restore power only after the work area is clear, then observe the compressor start sequence and listen for repeated clicking. Confirm that the refrigerator and freezer begin cooling normally. Do not repeatedly reset or cycle a compressor that does not start, because the relay, overload, compressor, wiring, controller, or refrigerant system may have a different fault. Keep the part number and installation date for future maintenance.
Frequently Asked Questions
What does a refrigerator start relay do?
A refrigerator start relay controls the brief surge of current used to start the compressor. After the motor begins running, the relay changes the circuit so the compressor receives normal operating power. A failed relay may prevent startup, produce repeated clicking, or prevent the refrigerator and freezer from cooling properly.
Can a refrigerator relay and capacitor be used interchangeably?
No. A start relay and a run capacitor perform different functions and are not generally interchangeable. Some replacement assemblies combine both components, while other appliances use them separately. Match the original assembly, connector layout, and electrical specifications rather than substituting based only on the compressor horsepower.
Are all 4.7-ohm refrigerator relays the same?
No. A 4.7-ohm rating does not establish the number of terminals, maximum current, physical connector, or overload compatibility. One-pin, two-pin, and three-pin versions can otherwise look similar. Verify the old component's shape and all electrical specifications before selecting a replacement.
Why does my refrigerator click every few minutes?
Repeated clicking often means the compressor attempts to start but the start relay or overload cuts power before the motor can begin. The compressor, wiring, controller, or refrigerant system can also produce similar symptoms. Replacing a relay may be appropriate when its failure is confirmed, but repeated resets should not be used as a permanent repair.
How do I know which overload protector I need?
Check the number on the old overload, the compressor horsepower or current rating, the refrigerator model, and the relay's compatibility list. A protector designed for a compact 1/6 HP compressor may not be appropriate for a larger full-size system. Never assume that a higher-current rating automatically makes an otherwise unrelated protector suitable.
Can I use a mini-fridge relay in a full-size refrigerator?
Only if every specification matches, including pin count, resistance, current, voltage, horsepower class, and physical connector. Mini-fridge kits commonly use one-pin relays, while full-size refrigerators may use a TSD2 device or a combined relay-capacitor assembly. Brand similarity is not enough to establish compatibility.
Do I need an experienced technician to replace the relay?
A capable appliance owner may be able to perform the repair by following the appliance wiring diagram and the component instructions, but the work involves mains-voltage wiring and stored electrical charge in capacitors. If the wiring is unclear, connectors are damaged, or the cause of the failure is uncertain, use a qualified technician.
What should I do after installing a new relay?
Restore power and observe one complete start cycle, listening for the compressor to start and for repeated clicking to stop. Then confirm that both the refrigerator and freezer sections begin cooling toward their intended ranges. If the compressor does not start normally, disconnect power and investigate the overload, compressor, wiring, controller, and sealed-system condition.
Final Thoughts on Choosing the Best Relay Switch for Refrigerator
The QP2-4R7 three-pin kit is the leading value choice for compatible compact appliances, while the BlueStars W10613606 assembly is the strongest all-around option for full-size refrigerators with that exact part configuration. The two-pack BlueStars assembly provides useful spare coverage for owners or technicians who can confirm the W10613606 fit.
Prioritize the original part number, terminal count, connector dimensions, resistance, voltage, current, and compressor horsepower. A broad compatibility list is helpful, but it is not a substitute for checking the failed component. For a full-size refrigerator, an integrated relay-capacitor assembly may be the simplest match; for a compact cooler, confirm whether the starter has one, two, or three pins.
Also rule out other causes before replacing a relay, especially compressor, controller, wiring, and sealed-system problems. Once compatibility is established, compare current pricing, availability, warranty terms, and the seller's return policy before making the final purchase.