Forum Discussion
Old-Biscuit
Sep 10, 2015Explorer III
OK......
Not sure why messing with the 30A fuse would correct Propane operating issue.
30A fuse is for the DC heater element.
There are 2 5A fuses on circuit board, 5A mini auto fuse next to 30A that is for the DC control circuit and then a 5A glass fuse for the AC heater electric element.
Diagnostic Screens.......
Press/hold both 'mode' & 'temp' buttons until screen displays (1) then release both buttons. Screen with then display (88)
Press/hold 'mode' until next screen appears.
Goggle Norcold N641.3 Service manual....download manual that covers your model.
(Will cover N6 & N8 models)
Lots of good info for owners. Plus you will want to review before replacing those circuit boards
Not sure why messing with the 30A fuse would correct Propane operating issue.
30A fuse is for the DC heater element.
There are 2 5A fuses on circuit board, 5A mini auto fuse next to 30A that is for the DC control circuit and then a 5A glass fuse for the AC heater electric element.
Diagnostic Screens.......
Press/hold both 'mode' & 'temp' buttons until screen displays (1) then release both buttons. Screen with then display (88)
Press/hold 'mode' until next screen appears.
Goggle Norcold N641.3 Service manual....download manual that covers your model.
(Will cover N6 & N8 models)
Lots of good info for owners. Plus you will want to review before replacing those circuit boards
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,363 PostsLatest Activity: Mar 04, 2026