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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22515
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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Just installed thermostat. FA and 2 vertical lines show on

Customer Question

Just installed thermostat. FA and 2 vertical lines show on control panel. Cannot set system to run. Cannot find what FA means anywhere. Suggestions?
Submitted: 2 years ago.
Category: HVAC
Expert:  BillyHvac replied 2 years ago.
that is bad thermostat...whether hooked up wrong or bad out of the box...
You FA is on the left and the to the right a IL...
This a failed thermostat and not repairable.

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