Help with freezer issue diagnosis - WRX735SDHZ04 - Whirlpool French Door - freezer stable but locked at 31-32
I will do my best to give an accurate description that makes sense and is one point
This is a Whirlpool french door model with bottom freezer, middle drawer and in built ice maker and water dispenser.
Is about 5 years old
Problem started after about a 12 hour power outage.
Initially we thought the problem was the ice maker
- ice maker stopped making ice, though has power, has air flow. is cold enough to hold ice just not make ice.
We eventually realized the freezer is not fully getting to temp. So likely logic board is correctly telling the ice maker its not cold enough to make ice.
The freezer has good air flow.
No puddles
No ice build up
No frost on condesnors.
Good air flow in fridge.
Fridge is getting to correct temp. Confirmed temp matches what is set by checking the air temp with a food probe. If I lower the fridge temp to the lower then recommended setting my probe confirms the temp lowers.
The freezer is freezing. But no colder then 31 - 32. It keeps all items reliably frozen including ice cream. But to freeze a tray of ice can take 10 to 15 hours.
If I lower the freezer set temp it does not lower. My independent probe confirms it stays at 31 to 32.
I don't hear evidence of the condenser or fans running overtime. Sounds normal.
I managed to google how to run diagnostics. All tests seem to pass.
The freezer has been like this about 10 months now. The problem is not getting better or worse.
My best guess (and hope) is bad thermosistor