10-30-2023 01:14 PM
I installed my Nest replacing a Honeywell WBH8320WF back in July. The AC has worked great the past few months, but today tried to switch to heat. Cold air blows out instead of warm.
I don't have pics of the old wiring, but the following show the current wiring, which only works on AC.
I tried removing the White, which didn't change anything. Then I inserted White into OB, and again didn't fix anything.
I think connected White with Red and the Heat comes on.
How can I fix so it works properly?
10-30-2023 04:31 PM
@mikebee , Make sure the white wire is stripped to the proper length, straight with no bends, then insert the bare copper conductor fully. Reinstall your display, go to SETTINGS > EQUIPMENT and then conduct a heating test.
AC Cooling Wizard
10-30-2023 05:14 PM
10-30-2023 07:00 PM
When you set up the thermostat in the Google Home App, which wires did you say you had when it asked?
Based on the Furnace control board terminals, you have a conventional heat/cool system and should only have selected the C, G/G1, R, W/W1, and Y/Y1 terminals.
Try resetting factory defaults and setting it up again, selecting only the wires I noted.
This is the screen you make the selection at.
10-30-2023 05:16 PM
I did not see a Heating Test.