Quote: Ray Lawrence wrote in post #15
On older Dometic fridges, I don't think that the 230Vac (green) and 12Vdc (red) switches are interlinked. Mine are turned on all the time so that whatever power source I have it just works! Saves having to remember to switch the 12Vdc on when towing. The thermostat only works on the 230Vac supply, 12Vdc is on all the time when towing and gas is regulated manually by the 3 or 5 way gas regulator knob.
You may well be right, Ray, but I've just checked the Dometic and the Eriba manuals and both quite clearly state that the 240V switch should be turned off when operating on 12,V so that's what I do.