How to Replace a Freezer Temperature Control Thermostat

 

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This DIY repair guide explains how to replace the temperature control thermostat on a freezer. The temperature control thermostat—also called a cold control—turns the compressor on and off to maintain the freezer temperature. If the temperature control thermostat stops working, the freezer can be too cold or not cold enough. Replace the temperature control thermostat with the manufacturer-approved replacement part.

Repair difficulty:
     
Time required:

Less than 15 min.

Parts Required

  • Cold control thermostat

For manuals, repair guides, and specific part recommendations, enter your model number.

Tools Required

  • Pliers
  • Phillips screwdriver

Before you begin

Wear work gloves to protect your hands.

Instructions

 Warning: Undertaking repairs to appliances can be hazardous. Use the proper tools and safety equipment noted in the guide and follow all instructions. Do not proceed until you are confident that you understand all of the steps and are capable of completing the repair. Some repairs should only be performed by a qualified technician.

Step 1: Disconnect the electrical power

Unplug the freezer or shut off the circuit breaker for the freezer.

Step 2: Remove the control knob

Pull the control knob straight off of the cold control thermostat.

Step 3: Remove the grill cover

Remove the screws securing the compressor grill cover to the freezer cabinet and pull the grill out.

Squeeze together the 2 locking tabs that secure the cold control thermostat to the compressor grill cover and release the cold control thermostat from the grill.

 Tip: Tip: The cold control thermostat is still attached to the grill cover.

Step 4: Remove the cold control thermostat

Note the wiring connections on the cold control thermostat or take a digital photo to document the wiring connections.

Pull the wires off of the cold control thermostat.

Carefully pull the sensor bulb out of the freezer cabinet liner and remove the cold control thermostat from the freezer.

Step 5: Install the new cold control thermostat

Push the sensor bulb into the freezer cabinet liner.

Using your digital picture or documentation, reconnect the wires to the new cold control thermostat.

Position the new cold control thermostat on the compressor grill cover and push it into the grill cover. Make sure that the locking tabs on the new cold control thermostat snap into place on the grill cover.

Step 6: Reinstall the grill cover

Position the compressor grill cover correctly on the freezer cabinet and secure it using the mounting screws.

Step 7: Reinstall the control knob

Position the control knob on the front of the cold control thermostat and push the control knob down on the stem of the new cold control thermostat.

Step 8: Restore electrical power

Plug in the freezer or turn on the house circuit breaker to restore power.

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