Start Relay
If the refrigerator is not cold enough, the start relay may be defective. The start relay is a small device mounted to the side of the compressor. It provides power to the run winding along with the start winding for a split second at start-up to help get the compressor started. If the start relay is defective the compressor may run intermittently or not at all and the refrigerator will not get cold enough. The start relay should be replaced if defective.
Temperature Control Thermostat
If the refrigerator does not get cold enough the temperature control thermostat might be defective. The thermostat allows power to flow through to the compressor, evaporator fan and condenser fan. If the cooling system fans and compressor are running, but the refrigerator or freezer is not cooling correctly check for an airflow or defrost system problem.
Start Capacitor
If the refrigerator isn't cold enough the compressor might be having difficulty starting. The start capacitor serves as a battery to give the compressor a little boost during start-up. If the start capacitor is burned out the compressor might not be able to start and run as often as it should. Test the start capacitor first with a capacitance meter, they don't fail often. If it's defective, replace it.
Thermistor
If the refrigerator is not cold enough the thermistor might be defective. The thermistor is a sensor which monitors the air temperature. It is connected to the control board. If the thermistor is defective the refrigerator does not cool or may cool continuously.
Temperature Control Board
If the refrigerator is not cold enough the temperature control board might be defective. The temperature control board provides the voltage to the fan motors and compressor. These boards are often misdiagnosed. Check all other components to be certain this is the cause of the problem.
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Could just be a loose wire or one that needs re-soldering. Jiggle thinks around to see if you can find the possible break
von mayer
I placed a thermometer in the freezer after plugging it up and in15 minutes it read 0 degrees! I think this means that it is not the compressor and more likely a defrost issue. Thanks mayer for your help! Maybe I should wait a day and try the Defrost timer and see if thar does the trick!
Frank
von Frank
A few. Days ago I started noticing that my ice was getting a little watery by the third day I noticed my fridgerator everything in the freezer was defrosted so I empty the refrigerator and freezer vacuumed underneath that back you in the back and still is not cooling do I need a new refrigerator or can I fix it?
von mamanom43
Frank, did you ever find the problem? My fridge has done the same thing. I'm trying to self fix before I can a repair guy. :(
von Cookiemixx
I had a similar problem, found out the defrost didn't work so the fridge compartiment stopped cooling when there was too much ice buildup. Tried replacing the defrost timer but no improvement. What eventually fixed the problem is putting little balls of aluminum foil inside the molex connector of the defrost circuit. Turns out when it was too cold the contact broke because the metal was contracting inside them. Frustrating to diagnose as everytime I checked it was fine because of the warmth introduced when opening the door for long. Two years of swearing, now 8 without a problem.
von sdgsdg
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