very well i found a black cable that operates in the firewall thats connected to the fuse box...i unplugged it in the fuse box and there was yellowish sticky stuff (seems like wax) In the plug. So i cleaned it which has a damp paper towel but I wasnt https://rvheaterblowingcoldair27261.aioblogs.com/59412275/the-5-second-trick-for-rv-heater-blowing-cold-air