Freezer keeps defrosting - True T23F Freezer

I would check your defrost timer to see if it is rotating. It may be stuck in defrost mode. you can check this by manually rotating the timer dial CCW yourself. This will be located in the front bottom left had corner behind the vent panel.

There is defrost timer, that will shut off the freezer and turn on a heating element that quickly defrosts the cooling fins. then it cycles back on. If any part of that system goes out the freezer will not defrost.

low on gas or defrost mode failure....if the element become frozen then the air will not circulate around freezer compartment properly....check the defrost element or timer.

Hi, The defrost heater may not be working properly (timer stuck, heating element burned out, bad defrost thermostat,etc.). The unit should go into defrost mode about every 6-8 hours typically and last about 30 minutes (depending on model of freezer). During defrost cycles the compressor and fan do not run (don't want to keep cooling while trying to defrost). Once defrost is over, the fan and compressor get power again.
Take care

Hi, sounds like your defrost clock is stuck in the defrost mode. On most true boxes they have a paragon defrost clock with adjustable pins you can set the amount of cycles and duration of the defrost cycle. Find the clock and give it a turn in the direction of the arrow or cw. It will come out of defrost and start to freeze again. If it continues, you may need a new clock. Let me know what you find. Keep me posted. True boxes are top of the line
Sincerely,
Shastalaker7

more than likely the defroster inside the freezer has gone bad. This defroster is located in the space between the fridge and freezer and activates to defrost the freezer and stop build up of ice in the freezer.. If it is bad the freezer will not keep the fridge nor freezer cold.
Dave

You are most likely correct. Most manufacturers of freezers have fan delay/defrost terminators. But keep in mind that if the box is hot, it will not stay in defrost as that is what the terminator is designed to do. Does the unit ever get cold? You may have a refrigeration problem and the terminator is good. If you can give some additional info, I'll be glad to keep assisting you to get it going.

Check rear wall of freezer by feel for frost. Heavy, even frost indicates likely problem in the defrost system. Unplug unit. Defrost heater (in freezer behind rear wall panel), defrost thermostat (same area-must be checked at freezer temperature) or Defrost timer-located lower back outside of unit. Near compressor. Do continuity test on heater and defrost thermostat and if they show continuity (good), replace defrost timer. If not, replace the one that tests bad.

Defrost coils fully. Reassemble.

Please let me know if I have helped with comments and rating.

Refrigerator will work about 7-10 days after being defrosted until thick frost builds up again cutting off air flow to both compartments

Sounds like a defrost timer.Also it can be a defrost thermostat.Try to adcance the defrost timer to a defrost and see if it melts the ice off.If so then i would say you need a defrost timer hope i helped:)

Turn cold control to Max. This keeps your compressor running for this troubleshooting exercise. Find and manually advance the defrost timer with a screwdriver or something similar. This will shut the compressor down and bring the defrost heater on. If this happens then you will know that your timer is bad.

If it is not that, the next thing to look at is the defrost heater itself or the thermal overload on your defrost heater. This keeps your defroster from overheating.