Works barely OK on AC, fridge barely ok freezer ok, will not light on lp, is there a trouble shooting guide--used camper just bought have OM manual. Have enough hvac knowledge to be dangerous. Tommy
How old? If it is electronic ignition It may take several cycles to get it to light or stay lighted if the gas has been turned off. Then is a flame sensor that can get covered with rust from the vertical heat column that could be keeping it from being light(take the shroud off and clean,its right where the flame will be). To adjust the fridge colder there should be a clip with a sensor on it on the cooling fins that slid up or down with change the cooling in the refer. Also do a search on the model number and you might get a service manual.
Here's a cqick link I found.
