GE TBX 18LKE refrigerstor keeps good temperature in frezzer and box but it seems to run too long - several hour cycles. Fridge will run for several months before there is any sign of frost on coils at back of frezzer.
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Re: Refrigerator Keeps Running
A fridge normally runns for 16 hours a day, it sounds like it does exactly that. It is doing everything it serpose to. Is there anything else that it is doing? If you can give me any information I will try to help. But it sounds fine so far
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Look inside the fresh food compartment and behind the control panel and there should be a defrost timer. Part number WR9X489 and that is the only reason that I can think of that would keep the fan running all the time. What I think is the contacts that normally open to let the freezer defrost are fused or welded themselves together. If compressor cycles and temperatures are OK (safe) that leads me to that needing replaced. I will look for the wiring diagram for your model but have found it hard to really get those answers from GE. But most timers are universal as long as the time of defrost and hours between are correct, Let me know, Thanks Sea Breeze
Definitely a thermostat problem. Make sure that it is set on #3, make sure you have something in the box to provide a constant load (if you are worried about product freezing just put several gallons containers of water in there), set a thermometer on a shelf and let it run for several hours. Temperature should run 35-40f If it still freezes I recommend changing the thermostat. Not the easiest job on a True but the only real option. If it is too warm then raise the setting to #4 and run for several hours more and double check the temperature. It is normal for these box temperatures to "swing" quite a bit especially if empty. The thermostat actually senses coil temperature and not unit air temperature. Typically it cycles off when the coil reaches around 14f and then back on when the coil gets to around 38-40f.
Is the freezer side empty or nearly so? All modern frost-free units must go through a defrost cycle every 8-12 hours of accumulated running time. That figures out to every 20-40 hours in real life, and the box will be in defrost for maybe 15-30 minutes, depending on design. If the box is full of frozen food, the cycle goes unnoticed as you cannot freeze and thaw food that fast (the food actually keeps the compartment cold during the cycle). However, if the box is full of air, the temperature can change very rapidly. I suspect this to be your case. I am dumbfounded that your servicer didn't explain this to you.
unless the airflow is obstructed (like the refrigerator is on carpet), then it should not run more than a couple hours at a time. if you just got it today and loaded it up with stuff then it might take 24 hours for the temperatures to stabilize.