Sounds like you have a Suburban water heater......
Toggle switch in outside compartment is for electric.
Switch inside is for propane
Fridge......
In auto fridge should select AC first (IF AC power is available) if no AC power it swaps to propane (No AC could be problem with outlet it plugs into, could be bad/loose AC fuse on control module, could be loose/dirty connections on wire cable from control module to eyebrow, could be eyebrow button contacts)
With AC power on......manually swap to 'gas' then back to auto. Should swap to gas and then back to AC
With AC power on and fridge in 'auto'.......unplug fridge. Should swap to gas....then plug fridge back in and it should swap back to AC
Is it time for your medication or mine?
2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31