Westinghouse Freezer is too warm.....need thermistor

could be expensive needs regassing
or compressor

If it's cutting off at too high a temperature it is a good possibility the probe is faulty. However if the compressor is not cutting off at all, suspect short of gas.

OK check the Thermistor, the actual temperature sensor element, and or thermostat if it uses a separate feed.

You may need a new circuit board.

change the timer

the seals or door gaskets leaking will cause fuzzy ice to grow in freezer and water to collect in frige and run alot

Sound like it's going into showroom mode that the same problem we had, by unplugging it for awhile and then plugging it back in usually works if not this what we were told.
Sounds like you have bad thermistors ( # 4 and/or # 5 ) .To access these parts , you will have to remove the inside rear wall of the freezer . The # 4 thermistor , tells the main control board , the temp of the coils , if they need defrosted , when they are thru defrosting . This thermistor is the 1 " long , torpedo looking piece , clipped on the top left of the coils , with 2 white wires going to it . Part number WR55X10025 . It would be advisable to also replace the # 5 thermistor , located at the bottom of the freezer , slightly in front of the drain , also with 2 white wires going to it , slid into a housing . This thermistor , is the freezer thermistor , which tells the control board , the freezer temp , when to cycle off , associated with the fan speed also

first make sure the fridge has not frozen over if there is ice on the walls it will screw the system that determines how cold it is up. if this is the case empty the fridge unplug and use a hair dryer to carefully speed up the thawing process. usually this happens during warm and humid seasons.

if this is not the case then see below and you might need a professional appliance service to perform the below unless you are fairly skilled


The temperature control thermostat directs voltage to the compressor, evaporator fan motor, and condenser fan motor (if applicable). If the temperature control thermostat is not working properly, it may cause the refrigerant system to run longer than necessary. As a result, the refrigerator will be too cold. To determine if the thermostat is defective, rotate the thermostat from the lowest setting to the highest setting and listen for a click. If the thermostat clicks, it is not likely defective. If the thermostat does not click, use a multimeter to test the thermostat for continuity. If the temperature control thermostat does not have continuity at any setting, replace it.
The thermistor monitors the air temperature and sends the temperature reading to the control board. The control board then regulates power to the compressor and evaporator fan based on the thermistor readings. If the thermistor is defective, the compressor and evaporator fan may run too frequently. As a result, the refrigerator will be too cool. To determine if the thermistor is defective, test it with a multimeter. The thermistor resistance should change in conjunction with the refrigerator temperature. If the thermistor resistance does not change, or the thermistor does not have continuity, replace the thermistor.

Locate the defrost timer, turn the clutch head screw until you hear one click. This will actuate the defrost system. After 18-22 minutes the defrost should should have taken place and the compressor should restart. If the compressor does not restart after the time period the timer is at fault and needs to be replaced. Turn the clutch head screw to the second click and the compressor will restart. If defrost does not take place the problem is in the defrost heater circuit. Possibly bad heater or defrost termination switch.

the thermistor is most likely bad. you would have to take an ohm reading of the thermistor and check the tech sheet to see if it is in range. The thermistor is $50 to $75 part.