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BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22312
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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My Honeywell heating control is showing F4. What is this?

Customer Question

My Honeywell heating control is showing F4. What is this?
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.
Hello, your 3 port valve is stuck...this is not a fault with is with the valve not actuating
Customer: replied 1 year ago.
Does that mean we need to call out a plumber to fix it?
Expert:  BillyHvac replied 1 year ago.
That is correct, unless this is something your comfortable and well versed with.
I never know ones comfort level....but it is always prudent to call a plumber.

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