It depends on the fridge. Most, which work on propane, also work off either 12V or 120V (or both). Both would should work on shore power (assuming no issues). Your owners manual will have that information for you.
Ben and Doreen
Home Away From Home - 2017 PT Crusader 315RST
TV - 2016 Ram 3500 Laramie 4X4 6.7 Cummins Diesel
Never Enough Time Camping!!
The only caveat is that there have been reports that some fridges starts up on propane when you first turn it on and then switch to electric, so with the propane off it's possible that if the power went off, the fridge would fault and not start back up on electric. I've never seen this, I'm just reporting what I've seen reported.
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!
We have a FORESTRIVER WILDWOOD 241QBXL the frigidaire has AUTO and I'm wonder if while traveling if it runs on propane or the battery.
Are you confusing Frigidaire with refrigerator? Frigidaire would not have propane. Frigidaire is a brand name of a residential fridge. BUT since you said you have AUTO I can only assume it is not a Frigidaire and yes it runs on Propane when in Auto while traveling.
Open frig door look for on/off switch. This has to be turned on before you start the auto or gas modes. if it says auto then it should have the gas option. Look right of auto should say gas. In auto position frig will default to gas when power is disconnect and vise versa when you plug back in to electric. Later RJD
2020 Shasta Phoenix SPF 27RKSS
2018 Dodge Ram 2500 6.4 3:73 gearing. Traded 2015 Chevy 2500 6.0, 4:10
Traded 2015 30WRLIKS V-Lite
Days camped 2019 62
Days camped 2020 49 days camped 2021-74 2022-6 days