Dougswinnebago Report post Posted September 30, 2017 12v power to board is good. I replaced the power board thinking their might be a board issue. New board=same problem! Still a C fault. With 12v wires disconnected the supply power is 12v strong. When the wires are connected to the power board the readings fluctuate from 8-ish to 10-ish volts?? It’s in a class A Winnebago 33V. With the engine running my supply voltage is 14v strong but the C fault again remains. Any ideas or suggestions?? Share this post Link to post Share on other sites
desertdeals69 Report post Posted September 30, 2017 Check for a bad ground. If ok run a wire from the battery to the board and check voltage assuming the battery voltage was ok when you were reading 8-10 volts at the board. Share this post Link to post Share on other sites
Dougswinnebago Report post Posted September 30, 2017 Wow! It seems that my circuit breaker is failing under a load!!! Power directly from the battery was the ticket. Troubleshot back from there. I was fixated on the fridge being the issue. Thank you very much. On to the next problemLOL! Share this post Link to post Share on other sites
elkhartjim Report post Posted September 30, 2017 Thanks for letting us know you resolved the issue. Share this post Link to post Share on other sites
wildebill308 Report post Posted September 30, 2017 Glad you found the problem. Keep the questions coming. Bill Share this post Link to post Share on other sites
wolfe10 Report post Posted October 1, 2017 To go a little further in troubleshooting: Yes, could be a weak circuit breaker. Replace it with the same low-amp new one. If problem continues, may have a bare spot in the positive wire to the refrigerator causing a high draw. If so, either locate the problem area or just run a new wire. Share this post Link to post Share on other sites
Dougswinnebago Report post Posted October 2, 2017 I believe the wire is good. Their was another 6amp circuit breaker so I pulled the wire off of that one and hooked up the fridge there. It worked beautifully! I have not tried to locate a new breaker yet. Is there a “best place” to get those kinds of things? Share this post Link to post Share on other sites
wolfe10 Report post Posted October 3, 2017 If there is a brand name, just google it. But, any RV shop and many auto parts houses will have equivalents. Share this post Link to post Share on other sites
