Dometic RM2554 won't work on AC?

[Richard in Georgia]

Dewinterizing today. I'm plugged into 15amp shore power, fridge looks for AC but goes to gas. It says on gas - even if the gas is disconnected - for anywhere from 3 to 30 minutes.
After a few minutes it eventually finds the AC. Progressive Industries no error code. Other than fuses, where do I start?

[cpaharley2008]

Open the rear compartment and be sure it is plugged in in the back of the refer and then check the fuse block for circuit breaker.

[padlin]

Richard mentioned that after a few minutes it finds the AC, so it's plugged in and has power. Sounds like it could be the control board, but I have no idea how one would check such a thing. I know nothing about the fridge in question.

[Richard in Georgia]

Thank you for the reply. It seems to take anywhere from 10 minutes to right away for the fridge to "see" AC supply. I did remove the panel and "jiggle" the AC plug.