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  1. Repair
  2. Kenmore
  3. Freezer not cooling

Kenmore freezer not cooling

Common reasons your Kenmore freezer is not cooling

The most common reasons your Kenmore freezer is not cooling are a failed compressor, malfunctioning electronic control board or a bad evaporator.

  • 68%

    68% of the time it's the

  • 7%

    7% of the time it's the
    Electronic Control Board

  • 6%

    6% of the time it's the

  • 19%

    19% of the time it's the
    Something else

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    Most common repairs needed to fix a Kenmore freezer

    Compressor Replacement

    When your freezer is not cooling, a failed compressor could be causing the problem. The function of a freezer compressor is to compress and pump the refrigerant gas that flows through the sealed system, which in turns absorbs and removes heat from the inside of the freezer, keeping it cool. When the compressor fails, the freezer won’t cool at all. Because the EPA regulates the handling and disposal of all refrigerants, you’ll need to have a certified service technician perform the repair. Schedule service through Sears Home Services and we’ll send a certified technician to your home to fix your freezer.

    Electronic Control Board Replacement

    When your freezer is not cooling, a malfunctioning electronic control board could be causing the problem. The electronic control board receives signals from various sensors to monitor the temperature inside the freezer. Using the information it receives from these sensors, the board starts or stops the compressor, fans, defrost cycle and other components. A bad internal relay or corrupted internal logic on the circuit board can prevent the electronic control board from sending electric current to the compressor for cooling. When your freezer isn’t cooling, schedule service through Sears Home Services. Our technician will visit your home and fix the cooling problem in your freezer.

    Evaporator Replacement

    When your freezer is not cooling, a bad evaporator can be causing the problem. The evaporator cools the air inside the freezer. When the evaporator leaks all of the refrigerant out of the sealed system, the freezer won’t cool at all. Replacing the evaporator involves recovering and recharging the refrigerant in the sealed system. Because the EPA regulates the handling and disposal of all refrigerants, a certified service technician is required to perform the repair. When your freezer won’t cool at all, have a Sears Home Services Technician visit your home and fix the problem.

    What to expect when you experience a Kenmore freezer not cooling issue

    How is the not cooling problem fixed?

    Correcting most not cooling problems usually involves replacing the compressor, electronic control board or evaporator. However, there are many potential causes, so a thorough diagnosis is key to fixing the problem. An accurate diagnosis is essential to understanding how much the repair will be.

    Sears Home Services recommendations for a freezer that is not cooling

    When the freezer is not cooling it can be for many reasons. To avoid replacing unneeded parts we recommend having a Sears Home Services professional perform diagnostic tests to identify the root cause of the problem. Our technicians are experienced at diagnosing all types of freezer failures.

    What to look out for with a freezer not cooling diagnosis

    Diagnosing modern appliances without proper knowledge and training can be difficult. Without using proper diagnostic techniques, fixing your freezer problem will only be achieved through changing parts on a hunch. Appliances, especially in the last 10 years, have become extremely advanced, and many models have electronic parts that are difficult to test. DIY repairs on the latest appliance models are becoming increasingly difficult.

    Kenmore Upright Freezer Not Cooling Troubleshooting

    If you hear the compressor running but your Kenmore upright freezer is not cooling, a sealed system problem such as a refrigerant leak or a failed compressor may be causing the problem. A service technician will need to fix a sealed system failure in your Kenmore upright freezer because the repair involves the recovery and recharge of the refrigerant.

    If the freezer cools but doesn't cool down to 0 degrees, a failed thermistor may be inaccurately detecting freezer temperature or the electronic control board in the freezer may be inaccurately detecting the thermistor signal. Using the freezer's tech sheet as a guide, unplug the freezer and check the resistance of the thermistor using a multimeter. Replace the thermistor if its resistance differs from its expected resistance. If thermistor resistance is okay, check the resistance of the thermistor circuit from the wires that connect the thermistor circuit to the electronic control board. If you measure the same resistance through the wires that connect to the control board as you measured directly at the thermistor, then you'll need to replace the electronic control board because it isn't accurately detecting the thermistor signal. If the thermistor circuit resistance differs from the thermistor resistance, then a wiring failure in the thermistor circuit is interfering with the thermistor signal going to the control board. Find and repair the bad wiring. If your freezer uses a dial control, the cold control thermostat may not be sensing and controlling freezer temperature properly.

    Problems in the automatic defrost system can also prevent the freezer from cooling. You'll typically see frost on the evaporator cover when the defrost system isn't working because the defrost heater isn't turning on to melt frost off the evaporator fins. The evaporator won't be able to cool the freezer well when the evaporator cooling fins are caked with frost because the frost blocks air passages over the fins. To check the defrost heater, unplug the freezer and check for continuity through the defrost heater element using a multimeter. If you don't measure continuity through the defrost heating element, replace it. If you measure continuity through the defrost heater, it's likely okay.

    Check the defrost bi-metal thermostat next. A failed defrost bi-metal thermostat won't allow current to reach the heater. You can check for continuity through the defrost bi-metal. (Note: When the bi-metal warms up, it trips open to shut off the defrost heater to prevent the heater from overheating and damaging the evaporator so you can't check the bi-metal when it's above 15 degrees.) If you don't measure continuity through the bi-metal, replace it because it isn't allowing the defrost heater to turn on.

    A failed defrost timer won't advance into the automatic defrost mode so the defrost heating element would never turn on to melt frost off the evaporator fins. You can check to see whether the defrost timer advances by manually advancing the defrost timer to the defrost cycle. Turn the dial on the defrost timer with a screwdriver until the compressor shuts off. If the compressor isn't running when you're ready to test the defrost timer, open the freezer door until the compressor turns on and then advance the defrost timer until the compressor shuts off. The defrost cycle takes about 30 to 45 minutes to complete then the compressor should turn on to cool the freezer. If the defrost timer doesn't advance through the automatic defrost cycle and allow the compressor to start after 30-45 minutes, it's likely the timer is broken and needs to be replaced.

    A failed evaporator fan can also cause cooling problems because it won't circulate air through the freezer cabinet. Replace the evaporator fan if it doesn't run when activated.

    Clean dirty condenser coils because dirty coils won't cool down refrigerant before it enters the evaporator, resulting in poor cooling performance. Replace the condenser fan if it isn't running when the compressor runs because the condenser fan blows air across the condenser to help cool the refrigerant before it enters the evaporator.

    If these troubleshooting tips don’t help or you prefer to have a Sears Home Services technician fix a Kenmore upright freezer not cooling problem, schedule freezer repair service.

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    Pedro was on time and super friendly. He seemed to know the job and was helpful in explaining everything. Showed me the controls and where the problem was. So nice, would definitely use your service again. Another company was going to take 3 days to come and service us. You guys came same day, what a lifesaver!

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    Additional possible Kenmore freezer symptoms you may experience

    • Kenmore freezer won't make ice
    • Kenmore freezer compressor not running
    • Kenmore freezer door not closing
    • Kenmore freezer fan not working
    • Kenmore freezer leaking water
    • Kenmore freezer light not working
    • Kenmore freezer not working