Dometic RM66E not cycling on gas
Hi all...my Dometic RM66E refer (circa 1978, Class C) works fine on shore power - cools nicely and maintains temperature based on the electric thermostat setting. When running on propane it also cool...
Forum Discussion
A couple of things- the safety valve is right at the burner on that model- just to the left, the thermocouple goes in to the top, and the button that gets pushed is on the bottom, with a plastic "fulcrum" that changes the pull in to a push up. Just hold that up while you light it.
The LP thermostat is just to the left of that. A few things could cause the LP thermostat to over cool- the capillary sensing tube could be loose (there should be 2 clamped to the fins inside), the thermostat could be dirty, keeping it from closing,
or a tiny o-ring that is on a bypass screw could be missing:
This type of repair isn't rocket science, but it does involve mucking about with LP gas components- but these were made to be serviced.
I have the service manual at http://bryantrv.com/docs2/docs/RM77.pdf
The LP thermostat is just to the left of that. A few things could cause the LP thermostat to over cool- the capillary sensing tube could be loose (there should be 2 clamped to the fins inside), the thermostat could be dirty, keeping it from closing,
or a tiny o-ring that is on a bypass screw could be missing:
This type of repair isn't rocket science, but it does involve mucking about with LP gas components- but these were made to be serviced.
I have the service manual at http://bryantrv.com/docs2/docs/RM77.pdf
