Defrost Thermostat

PartSelect Number PS469269

This limiter thermostat cuts out when the temperature inside your refrigerator reaches 55 degrees Fahrenheit and kicks back in when the internal temperature drops to 20 degrees Fahrenheit.

This part works with the following brands: Frigidaire, Gibson, Kelvinator, Kenmore, Tappan & White-Westinghouse.

This part fixes the following symptoms:

  • Fridge too warm.
  • Freezer section too warm.
  • Freezer not defrosting.
  • Freezer too cold.
  • Fridge runs too long.
  • Fridge too cold.
  • Leaking.
  • Frost buildup.
  • Compare At

    $15.49
  • You Save

    $2.58
  • Your Price

    $12.91
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Videos For installing this part.

Installation Instructions Provided by PartSelect customers like you.

Average Repair Rating: 3.7 / 5.0, 27 reviews What's this?
1-5 of 27
 

245 of 281 people found this instruction helpful

Parts Used

Level of DifficultyEasy

Time to do repair:30 - 60 mins

ToolsNutdriver, Pliers, Screw drivers

CustomerStephen from Warrington, PA

Fridge got warm and freezer coils were frosted

Fridge is a side by side. The freezer is pretty narrow for a guy with wide shoulders.

Pulled plug.

Had to remove bottom drawers then used nut driver to remove screws closest to back wall in drawer runners. Once the back screws were removed the runners could be swung up or down out of way so back cover could be removed.

Once back cover was removed thermostat was located attached to top pipe going into coil using a spring clamp.

Cut the wires just outside the crimp connectors going into thermostat. Released the spring clamp buy squeezing botton together.

Removed old badly corroded thermostat.

I wish I had attached the crimp connectors to the new thermostat wires before mounting it. Reaching way in the back, while turning shoulders verticly and trying to get the wire connectors set from both sides was awkward and uncomfortable...The biggest PIA of the whole task.

Once connected I let the fridge (thermostat) cool for 10 min. Turned the dial defrost timer to get it into defrost mode. Stupidly touched the heating element to see if it was getting warm...it was very hot.

Coils steamed...every looked like it was working. Unplugged, put back cover back on and retattached drawer mounts.

Plugged back in and everying is working great!

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89 of 103 people found this instruction helpful

Parts Used

Level of DifficultyEasy

Time to do repair:15 - 30 mins

ToolsNutdriver, Pliers, Screw drivers, Socket set

CustomerJuan from Riverside, CA

Fridge evaporator frozen not cooling

First i killed the power and water supply to fridge. Then i removed all the racks in freezer and the 1/4" screws for rack supports with nut driver. Next i removed the evaporator cover 1/4" screws to gain access. Then i removed the the 1/4" screw that holds the evaporator at the bottom and moved the evaporator outward to remove the heater element. Then i installed new heater element from the bottom of the evaporator making sure it was in the center of the evap coils.
Next i replaced the defrost thermostat cutting the old wires. Then stripped and crimpped the new thermostat in place making sure of the same installed postion as removed.
Next i replaced the defrost timer located at the bottom left using philips head screw driver.
Next i replaced the water filter by turning it counterclockwise to remove.
Then restored power and water supply. Next i tested the heater element by turning the dial on the defrost timer clockwise until it clicked and watched the element glow.
Then waited for the deforst thermostat to shut off the heater. Finally i checked the evaporator drain iin the back of fridge for blockage and cleaned out completely.
Repairs successful fridge good as new.

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31 of 33 people found this instruction helpful

Parts Used

Level of DifficultyEasy

Time to do repair:1- 2 hours

ToolsNutdriver, Pliers, Screw drivers

CustomerNeil from Flemington, NJ

Evaporator coil freezing up, freezer and refrigerator are warm

Danger: Replacing these parts requires working with electrical wiring, be certain to unplug the refrigerator before starting work.

1. Unplug appliance
2. Empty freezer section
3. Remove shelves and Ice storage tray
4. Remove 6 screws from evaporator cover.
Note: Remember where the screws with insulated washers go.
5. Use a hair dryer to melt all ice from coil
Danger: To prevent injury or death from electrocution always ensure that the hairdryer does not get wet while in operation.
6. Unplug defrost heater and defrost thermostat wires
Note: Thermostat is wired in series with the heater.
7. Remove screw from white plastic holder located on top of evaporator coil
8. Remove styrofoam pieces from top of coil
9. Grasp the bottom of the evaporator coil and carefully lift and pull out the bottom end a few inches
10. Remove old heater coil by pulling out from the bottom and replace with new coil
Note: Be very careful when moving the evaporator, it is made of aluminum and will be very costly to repair if you damage the tubing.
11. Replace old thermostat with new thermostat
12. Re-connect thermostat and heater wiring
Note: Remember to route wiring so that condensation does not gravitate to the electrical connections.
13. You can check if the heater is working by manually rotating the defrost timer clockwise. The timer dial is located on the bottom, front of the refrigerator on the freezer side. Be careful, the heater gets very hot.
14. Re-install evaporator cover
15. Re-install shelves and ice storage tray
16. Plug in the refrigerator
Note: Depending on how warm your refrigerator was it may take 24 hours to return to normal operating temperatures.
Note: Take your time and the job will go faster.

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26 of 35 people found this instruction helpful

Parts Used

Level of DifficultyA Bit Difficult

Time to do repair:1- 2 hours

ToolsNutdriver, Screw drivers

CustomerDavid from Fleetwood, PA

Freezer / refrigerator warm (not defrosting)

I checked the defrost timer (bottom front of the freezer / outside). I advanced it to send it into the defrost cycle. The heating elements in the freezer (behind the panel) did not heat up. I cut the wires going to the defrost thermostat. Turned the power back on, made sure the defrost timer was still in the defrost cycle and checked the voltage at the wires to the defrost thermostat (before the heating elements). There was power / voltage there. I jumped out / bypassed the defrost thermostat turned the power back on and the heating elements came on. The problem was the defrost thermostat. So I replaced it with a new one from PartSelect.com. How it works...
When the defrost timer is advanced to the defrost cycle the switch closes sending power to the defrost thermostat. If the temperature is low enough, the defrost thermostat switch will close and sends power to the heating elements. When the temperature rises high enough about 55 degrees the switch at the thermostat will open and the heating elements will turn off (not allowing the freezer temperature to get too high, just enough to defrost the coil). The refrigerator will turn back on when the timer advances. The defrost timer will defrost every 8-12 hours.

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13 of 17 people found this instruction helpful

Parts Used

Level of DifficultyReally Easy

Time to do repair:15 - 30 mins

ToolsNutdriver, Screw drivers

CustomerTodd from Thornton, CO

Fridge warming but freezer still frozen

I ordered a defrost timer and defrost thermostat from partselect.com. Parts arrived in 2 days (earlier than expected). Unplugged appliance, removed bottom cover, unscrewed 2 screws holding timer in place, unplugged timer and replaced with new part. Fastened back into place. Next removed back cover of freezer (5 screws using nut driver). Disconnected old thermostat and removed. Wires already had connectors installed. cut off the connectors with some wire left on and reconnected them to the new thermostat with the included blue wire crimps. Tried to use the shrink tube to insulate but couldn't get it snug enough. Just used electrical tape instead. Reinstalled thermostat. Reassembled cover. Plugged in and fridge and freezer are working fine again. Thanks partselect.com.

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