Dometic Fridge DM2852 2 problems
Problem one! This fridge only has On/Off switch, and gas switch, plus an Auto led light and a Check led light. Recently had a problem where fridge stopped working on 120 volts and automatically switched over to gas without me knowing it. Gas tank went empty and fridge quit, ruining contents of freezer eventually. Had I known 120 was not working I could have corrected the problem earlier. Once the gas runs out the Check light turns on and blinks but if trailer is unattended for several days this can go unnoticed. Is there a way to tell at a glance the electric side of fridge is not working?
Problem two! After troubleshooting the fridge and determining it was the lower control board as there was no 120 coming out to energize the heater element I purchased a new board. Installed it and everything worked great for about a month. Same problem occurred so got an RV technician to come look and he surmised it was a bad board as all checks indicating that way. Installed another board this morning and same result right off the bat. Pulled the heater wires off to check ohms (45 omhs) and found there was 120 coming out of the two pins to the element. Put wires back on and all seems to be working fine. Original board and first new one had no current on these pinouts. Third board acted the same way initially but straightened itself out when I was pulling wires off. Has anyone ever experienced a similar set of circumstances. In order to check to make sure it is still running on 120 I have to go outside the trailer and listen to tell if propane burner is on or not.
Sorry this was long, but frustrating to say the least.
Ken & Marilyn Holmes
2012 FR Wildcat 313 5er
2016 RAM 2500 6.4 Hemi