If check light is "on", it is not working properly. turn all off, wait ten minutes and turn back on to auto, be sure house power is connected and propane tanks are on and have gas in them. If check light comes back on, you have a problem that needs to be resolved by and experienced person.
"Sometimes I just sit and think. Sometimes I just sit." "Great minds like a think."
Go to the back of the fridge and remove the outside panel. Where the fridge plugs in, verify that you have 120 volts. If you do not have a volt meter, use a lamp, a drill, anything that runs on 120 volts. If you do have 120 at the plug, remove the black cover on the back of the fridge and look at the two fuses. If they are good, then we will need more information to help you further.
Have you tried it on Propane? Are you level? when is the last time the unit was moved? Have you tried to "burp" it? what kind of unit do you have? whats the model number?
Had a similar problem, when running on gas, which in my case was caused by a "dirty" chimney. I solved the problem by going up on the roof, removing the chimney cover and then blew compressed air down the chimney. The debris exited near the burner so I had to clean the burner area before re-igniting. The fridge had been working great since.
Thanks all who have helped. Turns out that there was a huge baseball size Mud-Dauber nest in the outside area where the burner is. Cleaned it out, vacuumed everything and now fridge is as cold as ever.