Question about Ventamatic Gable Mount Power Attic Ventilator Fan

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I have 120v going to fan ,thermostat has been put on 80 degrees and it still won't work .Do the heat sensors go bad ?

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The heat sensor or thermal switch can go bad, so can the motor.
Try a few things;
shut off power going to fan. try cleaning out the thermostat housing using some compressed air on low pressure, or use a vacuum cleaner on blow, or a hair dryer on no heat. you can also spray the inside with contact/motor cleaner(home depot electric dept.) and then blow the thermostat out of any dust or particles that may have lodged inside.
To see if the thermostat works at all, turn power to fan on. Take a hair dryer on heat and place near thermostat - to see if fan comes on.
To rule out a bad motor, the thermostat can be bypassed by hooking up the feed wires to the fan itself, if you're handy with wiring.
Ventamatic web site does list replacement parts for fans... Good luck!

Posted on Jul 22, 2009

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Posted on Jan 02, 2017

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