LazySummerHome: It should be in your owners manual. If you cannot find the manual just find the model # of the fridge and locate owners manual here https://norcold.com/product-manuals/
Source: [Question] My RV winnebago 24j Norcold fridge shows me error 6 when I switch it to the battery mode. It works fine with the LP and the Generator. Can someone please help me know what might be causing this issue ?