My refrigerator won't cool on 12v setting

That's pretty normal. It will drain your battery all kinds of fast though. propane is the most efficient way of cooling the fridge followed by the AC heating element. Use 12 volt power when traveling for short distances and the fridge and all items inside are cooled down completely. I never use 12 volt. If I am plugged in, the AC selection is chosen. If I am moving or boondocking, propane is on.

Thanks for the info, but I have used it before while traveling with no problems on 12v b ut now it is not cooling' Is there a fuse?

Inside the refridgerator cover, there is a 20 amp yellow standard blade fuse that runs into the 12 volt wiring and is connected to the 12 volt heating element. This may be your issue.

If it's an older model, there's an inline fuse near the house battery.

__________________
Les & Patricia
2006 22ft towlite (replaces 97 21TL)
2006 Toyota tacoma pre-runner 4.0 L V-6 quad cab
w/ 98 chevy Powervision towing mirrors
2017 Chevy Silverado 1500 5.3 v8 (replaces Toyota)
2 Hobie mirage pedal drive kayaks