Furnace blower won't run with Fan only setting on thermostat

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- Furnace blower won't run with Fan only setting on thermo

Postby Freon » Sun Feb 03, 2013 4:35 pm

You are correct, the common is the neutral.

Not knowing that control I can not say for certain what M1 and M2 are. However if there is also a Cool and Heat spade connection with the other 2 motor wires attached, then I think your assumption about M1 and M2 as being the same as Park is correct. You can move either wire from the M spade to the Fan spade. The only difference between the wires is the motor speed you'll have.
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- Furnace blower won't run with Fan only setting on thermo

Postby Jrossi266 » Sun Feb 03, 2013 5:10 pm

Worked. thanks so much!
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- Furnace blower won't run with Fan only setting on thermo

Postby Freon » Sun Feb 03, 2013 6:02 pm

Enjoy your air flow.
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