Readings no longer showing on KIB control panel for tank levels or main battery voltage. The aux voltage still works and gives a reading in the same window but the main button does not produce a reading. Tank level buttons and main button are all on the top of a board. Saw this exact problem posted several years ago and resolved by replacing a fuse, but thread is no longer active. I've searched and searched for this fuse and can't find it. Any suggestions? My fuses are all checking out good in the BCC and in the distribution center under the lav sink.
2004 Pace Arrow 37C