Could be low coolant or maybe a thermostat issue
SOURCE: Traulsen freezer URS48DT
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.
SOURCE: Kenmore 77563 Installed last week and freezer defrosted all the food
The refrigerator & freezer operate using the same system. One system. Your still covered by the warranty and I would suggest calling the installers or store from which it was purchased. The problem may be a faulty fan switch .
SOURCE: Freezer alarm keeps going off..
Mate prehaps the defrost element could be burntout thus no auto defrost and the big freeze and the alarm, when you switch off the defrost starts and the alarm resets?
SOURCE: freezer frosts up and stops cooling after approximately 2 weeks
With your new timer in hand look and find a slotted screw driver head that you can turn. That is to manually advance the timer. Now put the new one in and advance it to engage the compressor and fan. Might be in the middle of defrost mode. Your unit goes through 3 defrost modes in a 24 hour period. And each mode last for 20 minutes. Once you do this I could help further if that was the case. Okay ken
SOURCE: Need photo of freezer defrost sensor, switch or thermostat
Before replacing all of the components mentioned above, locate your defrost heater and check for continuity with an ohm meter,this will ensure no breaks in heater coil
Oncce the fridge was shut off and left for a while the cooling had come back . If frost is seen it is a good indication as the compressor is working with sufficient gas within.
If after about 6 hours you observe cooling it is possible that the defrost timer is faulty.
Earlier make sure that the thermostat was set to normal mode for freezer and fridge.
However if Ice forms then observe the fridge for about 24 hours for cooling to continue and the fridge to cut off . If not the auto defrost timer, or the thermostat must be checked.
If defrost timer works but frost keeps forming check while the compressor shuts if the heaters are working, check continuity of the heaters.
replace the defrost timer, heater or thermostat one you have confirmed to eliminate one by one.
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