Whirlpool Freezer Thermostats

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Your Price

$32.63

Whirlpool Freezer Refrigerator Bimetal Defrost Thermostat

★★★★★

18 Reviews

PartSelect Number PS11742474

Manufacturer Part Number WP4387503

This is a bimetal defrost thermostat for your refrigerator. It stops the fridge from overheating during the defrost cycle by protecting the evaporator. This clip-on thermostat will sense the temperature increase in the evaporator during the defrost process, and will cycle the defrost heater off after the ice or frost is melted. The most common reasons for needing to replace this part are if your unit is leaking, has inconsistent temperatures (too hot or too cold), you are seeing buildup of ice, or your appliance is running too long.

Fixes these symptoms

Freezer not defrosting
Freezer section too warm
Freezer too cold
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Installation Instructions

Lawrence from Grahamsville, NY

The frost free feature of the freezer was freezing over with ice and cooling coils were being insulated with thickening frost which caused the cooling air to rise in temperature from -5 degrees to 20 degrees.

I troubleshot the problem by reading the electrical schematic and concluding the heating elements (defrost cables) were either defective or the bi-metal temp sensor was open. When closed the temp sensor completes the circuit for the current to flow through the heaters to defrost the cooling coils every 8 hours and then when the bimetal opens at 55 degrees the circuit is open and the coils are cooled because the refridgeration motor is in run mode. A timer between the motor and heater elements also was defective. The timer controls the cooling period and the defrost period. I ohmed out each part according to the spec sheet of normal resistance of parts and thus the bimetal and timer were defective. I gather a surge of some duration and amplitude affected these parts because a storm 24 hours prior to refridgerator problem had passsed through the area and the AC electrical power had oscillated several times during that event. I used hand tools to do the repair. If you are not mechanically inclined a step by step proceedure would be moot. It is a matter of disassembly and assembly paying close attention to fragile parts. Read more...

Your Price

$60.51

Whirlpool Freezer Bimetal Defrost Thermostat

PartSelect Number PS11738201

Manufacturer Part Number WP1-81801-001

This part is a temperature sensing devise. It senses the rise in evaporator temperature during a defrost cycle and cycles the defrost heater off after all frost is melted. It is calibrated to permit a defrost cycle only when the temperature is below a preset temperature

Fixes these symptoms

Frost buildup
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Installation Instructions

Dennis from White Bear Lake, MN

Fault in defrost circuit caused ice buid-up, decreased air flow, and elevated temp. led to a thaw.

After observing defrost timer go into (and out of), defrost cycle, I checked continuity of heating element. Since heater coil was intact (79 Ohms of resistance), I figured the defrost thermostat (aka bi-metal therm.), had to be at fault. The new part ($17.00), proved my suspicions correct. As I sought to determine if everything worked, I had to wait for the temp. to drop below the defrost therm. set point before I would see the heater coil get hot.
To avoid the costly failure in future, I bought a Chaney wireless therometer with two remote sensors. Sensors require lithium batteries. $30.00 for both are a cheap insurance system. Read more...

Your Price

$60.51

Whirlpool Freezer Refrigerator Bimetal Defrost Thermostat

★★★★★

1 Review

PartSelect Number PS11742471

Manufacturer Part Number WP4387499

This thermostat opens at 50 degrees Farenheit and closes at 25 degrees Farenheit.

Fixes these symptoms

Freezer section too warm
Fridge too warm
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Your Price

$56.33

Whirlpool Freezer Bimetal Defrost Thermostat

PartSelect Number PS11742469

Manufacturer Part Number WP4387489

Your Price

$53.20

Whirlpool Freezer Bimetal Defrost Thermostat

PartSelect Number PS11755599

Manufacturer Part Number WPW10491891

Your Price

$62.60

Whirlpool Freezer Bimetl-def

PartSelect Number PS11742473

Manufacturer Part Number WP4387501

Your Price

$95.42

Whirlpool Freezer Thermostat

PartSelect Number PS11755325

Manufacturer Part Number WPW10474750

Your Price

$105.35

Whirlpool Freezer Thermostat

PartSelect Number PS11739864

Manufacturer Part Number WP2253228

Your Price

$124.60

Whirlpool Freezer Temperature Control Thermostat

PartSelect Number PS11742204

Manufacturer Part Number WP4-35940-001

This part maintains the proper temperature. When the refrigerator reaches the desired temperature, this part interrupts the flow of electricity to the compressor which stops the cooling process.