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Phil, Mechanical Engineer
Category: HVAC
Satisfied Customers: 8439
Experience:  Retired HVAC/ Electrical & Boiler contractor. Industrial
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I am trying to install a new thermostat heat pump. The wires

Customer Question

Hello. I am trying to install a new thermostat for my heat pump. The wires fell behind the wall and my labels were pulled off when I recovered them. Just trying to figure out where the wires go on my new Honeywell thermostat
Submitted: 1 year ago.
Category: HVAC
Expert:  BillyHvac replied 1 year ago.

Hello, how many wires and what colors are they...and what type of heating cooling do you have?

Customer: replied 1 year ago.
8 wires, but only 6 were being used. It's a heat pump system
Customer: replied 1 year ago.
It's an electrical system
Expert:  BillyHvac replied 1 year ago.

do you have red for r

white for aux

yellow for y

green for g

orange for o

and possibly blue for C or black for E?

Expert:  Phil replied 1 year ago.

Hello, Billy has opted out.

Tell me please which color wires connect to each terminal on the thermostat, and if you can measure 24 volts between R and any of the other terminals, especially R and C.

We can go from there.