This is a Dometic RM-100 from 1979. It works fine on electric but just recently I noticed that it wasn't cooling properly on gas.
Overnight when it is cool outside, with the thermostat set at the normal position, the temp inside the refer will be fine. However, if you check it later in the day when outside temps are in the 80's, and the fridge door has been closed all day, the temp inside the refer will have raised about 10 degrees.
The burner flame looks fine and I was able to verify that the baffle is in the correct position in the flue. Blew some compressed air up the flue but have not removed the refer from the wall to actually clean the flue or inspect it properly.
Does this sound like a dirty flue, failing gas thermostat, or...?
Thanks,
Christopher
1979 Airstream 31' International
2004 Ford F250 SD Powerstroke
1. VERIFY that the LP pressure is a minimum of 11 inchs Water Column.
2. Your model, the LP side of the Tstat is a "bypass" type Tstat. That means, since the LP flame is ON all the time, when the refer reaches temp, the Tstat has a "Bypass" that allows the flame to diminish but still stay on. Kind of like a pilot flame. That means you "May" have a defective tstat, if it is NOT staying on full flame when needed.
3. Verify your raise in temp by taking the temp of a small glass of water. Are you taking the temp of the "air" in the refer? Or using a "cheap" hanging thermometer that takes the air temp?
Doug
Remove the orifice & clean it even if you can't see anything in it. Last week I had the same problem, the flame looked fine but when I took the orifice out there was a speck of something, probably a spider web. I could only see it sometimes, DW couldn't see it at all. Cleaned it, reinstalled & is working fine.
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