Dometic fridge RM2652 tripping thermal sensor
Hello all, my Dometic RM2652 in my 99 Travelmaster class C RV was in my level shop hooked up and running good. I went out one day after we had a pretty bad storm and our electricity went off and back ...
Forum Discussion
rvman69 wrote:
Well I had the camper plugged in out in my shop since last November after last camping with the fridge on. The propane was on also. So I wonder if the unit had leaked out some. Then when the storm took out our electricity the burner kicked on and caught the tube inside on fire. Wonder if that could have burnt some of that stuff up maybe clogging that tube up some. Then when electricity came back on it got to hot and thermal fuse popped out. Just an idea. Thanks
I'm not sure about the fire part, I have never seen the fluid burning outside to know what it looks like when burning. I have only had to deal with cleaning up the mess of leaked-out fluid when installing a new cooling unit.
I will say that the controls' stack safety sensor (thermal disk switch) is not auto-resettable. You have to push the button to reset it. The controls do not care if you are on gas or electric; the sensor will trip the same. It might trip faster on gas, but if it tripped when you were on electric and the power went out, the gas would not fire off as the safety switch would have been tripped already. If, by coincidence, the gas did fire off and the switch got tripped, it would shut the gas down, never to come back again. If a burning glob fell, it should have landed on the gas burner tube, and you did not report the burner tube had any large glob in it. The system may have started leaking over the winter, but once they start leaking, they are not cooling right, and the safety should have tripped sooner or later.
Your post is a good learning one, for me, anyway. The cooling coil unit I had to replace failed overnight and never tripped the safety sensor. The fridge was on in my shop as the camper was there for water damage repair. When I walked in the following morning, the shop smelt like a big ammonia bottle. In this case, the fluid leak was a big one, it let out the coolant quickly, made a big mess, a big stink, and I caught it before the system tripped the safety sensor. The fridge temp could have been satisfied and not called for cooling.
John
