I think it isn't fine because if a fridge/freezer that is otherwise healthy runs continuously (due to a thermostat fault), it would be colder than you could imagine with lower than arctic temperatures in the freezer compartment, minus 30-40 C for example.
The conclusion must be your fridge isn't fine.
Proper freezer temperature, incidentally, is minus 25-27 C for food to have a reasonable lifespan with minimal deterioration. There is no benefit from being colder but significantly warmer would mean the freezer contents should be replaced much more often - the freezer compartment of an old fashioned fridge (about minus 5) was reckoned to give fish, meat and dairy up to one month safe lifespan.
A fridge that runs continuously (where the thermostat is good) could have a refrigerant loss resulting in a huge drop in efficiency, the insulation could be failing, the compressor could be failing or the de-icing panel could be permanently switched on - or any combination of these things.
I note you say the coils are clean. If the refrigeration system is good with the compressor running continuously the coils will be hand-hot.
SOURCE: KENMORE TRIO 2004 59675523400 REEFER/FREEZER NOT COOLING
It is the compressor that has failed. The hum is it trying to start and the following click is the overload protector opening. What is the temperature where the refrigerator is located? Allow the compressor to cool down before trying to restart it. If it still does not restart after it has cooled off it is done.
SOURCE: sub zero 650 fidge holding at 53 degrees
Most likely you have a leak in the evaporator. Subzero warranties the parts for 12 years. Call them to find out what they will cover. They are agreat company and will be fair with you.
SOURCE: Sub-Zero 532 (About 18 years old)
First do the simple things like cleaning the condensor coils and turning the defrost timer a few times, also check the evaporator motor or just listen to the fan by opening the freezer door. Also check the light switch, make sure it turns the light off every time you close the door.
SOURCE: Freezer works Refrigerator will not cool down
The compressor should be OK this time because you caught it in time. But if the condenser fan stops you need to consider replacing the fan. I have had refrigerators do fine until the fan motor warms up and you are away, it stops. Don't think you should use the refrigerator until the fan is fixed. Sea Breeze
SOURCE: Freezer cool but not cold
It sounds like it is due for a shot of freon (or most likely R-134A), and most fridges have a crimped coolant line instead of fittings to connect to for recharging. Call a few refrigerator repair guys and get some quotes, and then compare the price of a new, more energy efficient fridge. You will probably decide you are better off just buying new, considering the average life span of white goods is around 10 years, and no telling what will go bad next.
and/or refrigerator do not work right because of a dirty condenser coil... Condenser Coil Cleaning Refrigerator Repair Refrigerator Compressor and/or refrigerator do not work right because of a dirty condenser coil...206 views
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