We're getting our new rig ready for it's shake-down trip and we turned the fridge on to pre-chill and it started to beep and a light flashed. This is a 2-wway Dometic of some sort (don't have the man...
Are you plugged into shore power electric? Do your outlets work?
You say "gas is off" meaning shut off at propane tanks, or fridge is not set to gas?
If shore power electric is not being supplied, fridge will default to gas. Are you sure your fridge is plugged into its proper outlet? Did you test fridge outlet to confirm power?