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BillyHvac
BillyHvac, Journeyman HVAC Tech
Category: HVAC
Satisfied Customers: 22679
Experience:  Endorsed for unlimited heating, cooling, oil burners, boilers, refrigeration, hydronics
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E AND F CODE ON BACK OF THERMOSTAT....SWITCH...WHAT IS WHAT,

Customer Question

E AND F CODE ON BACK OF THERMOSTAT....SWITCH...WHAT IS WHAT
JA: Just to clarify, do you think this is a larger HVAC problem, or something specific to the thermostat?
Customer: THERMO ....ONLY....I HAVE 2 THERMO'S....A SEPERATE HANDING UNIT FOR MASTER BED ROOM...
JA: Do you plan on doing the work yourself?
Customer: ONLY ON THERMO'S IF POSSIBLE...WHAT DOES CODE SWITCH MEAN ON THE BACK....EITHER E OR F
JA: Anything else we should know to help you best?
Customer: ANSWER TO CODE ON BACK OF THERMO....E OR F SWITCH
Submitted: 3 months ago.
Category: HVAC
Expert:  BillyHvac replied 3 months ago.

Hello my name is Billy.

E is for electric heat

F is for fuel like gas, propane, fuel oil

It has to do with how the fan comes on

Billy

Customer: replied 3 months ago.
ok
Expert:  BillyHvac replied 3 months ago.

do you have any other questions on how to set it?

Billy

Customer: replied 3 months ago.
have 2 thermos....separate handling units for each section
Expert:  BillyHvac replied 3 months ago.

are these new ones you are wiring in?