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pjw73nh's avatar
pjw73nh
Explorer
Nov 11, 2017

Dometic RM2453. LP good, AC freezes, nothing on DC.

Dometic RM2453. Works fine on LP, freezes on AC and does not appear to do any cooling on DC. I know from what the previous owner told me that the AC heater was replaced last year. I am using the...
dougrainer's avatar
dougrainer
Nomad
Nov 12, 2017
DC(3 way refers), are NOT supposed to use DC element for cooling down a refer. The 12 volt element is a sustainer of the existing cold temp and is used while in transit. Doug

The 12 volt element is NOT using the tstat control. There was no reason to remove the 12 volt element when they replaced the 120 element. The tubes are welded to the flue. When you switch to DC, the 12 volt current is applied direct to the element and not thru the tstat control system.

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