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Old 03-02-2019, 01:47 PM   #1
Airstream'n Bachelor
2018 30' Classic
Pine Ridge , Florida
Join Date: Sep 2018
Posts: 34
Dometic Frig RM3962

My Dometic Frig (2018 30 Classic) will not cool below 44 degrees F on setting 5. Freezer is fine will get down to -5 on occasion. I have checked the door seals, checked the amperage on the heater, installed fans inside, checked the thermistor and the resistance is good based on the published charts. I can't really find anything wrong but it does not want to go any lower. One thing I do see wrong is the eyebrow temp indicator registers about 10 degrees higher than the actual frig temperature. I suspect the frig is cycling on and off too often but don't have a clue how to test that. Every time I check the amperage on the heater the heater is on.

I am checking the inside temp with glasses of water with a high quality thermometer +-.5 degrees. So I am confident of the inside temp reading.

Any ideas?
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