Thor Forums

[javelin]

Your suspicion that all these various loads are powered from the blown 15 amp fuse circuit is very likely correct. Checking with Thor support for that fuse load record should confirm that (with some luck, since design is not necessarily “as built”). A short circuit on the hot wire from the 15 amp fuse could be anywhere......but I am “guessing” that it is most likely that the blown fuse hot wire has been pulled across some chassis (as in DC grounded) metal somewhere in its travel and the insulation on the wire has been skinned so that it is now grounded. The other option is a construction staple has now shorted both the hot and ground wires for that circuit.....somewhere.
It would be interesting to see if slide in or out makes any difference to the operation of the failed loads.......but it could cost you another blown fuse. If you had a multimeter and know how to use it you could test the load side of the hot fuse feed point (fuse out) to make sure no voltage is present first and if not, use the ohmmeter setting to measure hot to ground to confirm if a short is still there in both slide in/out positions. Never use an ohmmeter on a live circuit.
It might just be best to do as much visual inspection as you can to see if you can spot a chafed wire and repair it first........talk to Thor support for assistance or get to a Dealer (but the Dealer wait could be very long). The other option would be a mobile RV tech but they would probably do the same inspection first that you are already doing.

Finding a staple short circuit could be much more difficult search since many are buried during construction.

The slides are usually powered from a 30 amp DC fuse in the bed end converter/fuse panel and the roof A/C is 120VAC powered not DC (other than the thermostat A/C call for cooling circuit is DC powered). Good luck with your search.