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Phil
Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 5648
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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Fan stays on

Customer Question

fan stays on
Submitted: 1 month ago.
Category: HVAC
Expert:  Phil replied 1 month ago.

Hello,

click here for the thermostat manual

There is a FAN switch at about 1 o'clock, be sure that it is not set to ON... but to 'auto'... tell me if the fan still stays on or not.

This can get pretty technical, tell me a lot about your technical skills so that I can coach you most effectively.

We can go from there.

Customer: replied 1 month ago.
no fan switch
Expert:  Phil replied 1 month ago.

If you have the skills to dig deeper into the electronic controls send me a photo of the wiring diagram glued inside the blower access door.

Use the attach files like for that to the left of your send button. I will mark it up with trouble shooting instructions, so far I suspect a bad printed circuit board.

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