Staff Answer
Sep 27, 2026 - 06:34 PM
If you've replaced the thermistor three times, it's probably not the thermistor. A freezer that stays cool but won't freeze hard usually means the cooling unit is getting weak, or it isn't getting enough heat or airflow. Check that it cools equally well on AC and LP (if it's weak on only one, look at that heat source). On LP, clean the flue and burner. Make sure the rear vents aren't blocked and the RV is level, and consider adding a Valterra A10-2618VP cooling fan. If it's weak on both modes, the cooling unit is likely the problem.
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