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Question DetailsAsked on 10/10/2017

My attic fan stop working could it be the thermostat or what could it be.

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1 Answer


Lots of possibilities - tracking from breaker box to fan, could be general power failurte (if whole house is out), one side of 220V power out (if roughly half of circuits are out), faulty breaker or tripped breaker (correctly or false trip), bad wiring/disconnected wire nut between breaker box and fan, bad thermostat, thermostat knob (if variable and user-accessible) has been turned or knob came off and was put back on at wrong setting, master power switch for the fan has been turned off by accident or switch has gone bad, fan overheated so thermal breaker on it tripped out (some resettable, sometimes just an in-line fuse), fan blades jammed by critter or critter nest or wind-blown debris, ormotor failed - electrically or dry bearings or (for larger fans) failed starter condensor/capacitor. Or wind-blown debris or kid's toy hit the guard screen/wires and bent them into the path of the fan. Or probably a couple of others I have missed.

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