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Mike2422's avatar
Mike2422
Explorer
Jan 04, 2018

2015 Thor Hurricane

I got a 2015 Thor Hurricane and furnace keeps blowing 15amp fuse. Fuse blows as soon as i try to turn furnace on. Took covers of furnace no visible shorts in wires when I unplug furnace from rv connection and try to turn it on its doesn't blow fuse any ideas what's wrong bad board in furnace or what can I check next. Thanks in advance
Class A
  • wolfe10's avatar
    wolfe10
    Explorer
    Jan 04, 2018
    Try to spin the fan by hand (yes, with furnace OFF).

    Could be that a mud dubber nest is keeping the fan from spinning properly, causing high amp draw.
  • bullydogs1's avatar
    bullydogs1
    Explorer
    Jan 05, 2018
    isolate problem to furnace itself...find 12 v wire going in and make sure it gets 12v from thermostat...Almost bet it could be fan motor itself..or a grounding connection on the furnace...

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