09-28-2021 07:35 PM - edited 09-28-2021 07:38 PM
I installed a new 3rd gen learning thermostat yesterday and when I switch to cooling, it turns the fan on but not the compressor for cold air,
I have a heat pump, and have connected the wires as directed by the app. I replaced the Nest again with my old Honeywell thermostat and it’s working fine.
I’ve tried swapping the Y1 and O wires, swapping the Y1 and W2 wires, switching between O and B in the Nest settings, nothing has helped. Anything else I should try?
09-28-2021 07:37 PM - edited 09-28-2021 07:39 PM
09-28-2021 07:38 PM - edited 09-28-2021 07:39 PM
09-29-2021 08:12 PM
Any advice? I think I’m just going to return the Nest if I can’t figure this out, seems like a hassle unfortunately.
09-30-2021 04:16 PM
Jfar, I am having the same issue. My fan will kick on with cooling or fan mode but the cool air will not initiate. Frustrating because the wiring matches as stated
09-30-2021 04:18 PM
So frustrating.. hope you get yours figured out. I’ve tried a bunch of things but nothing has worked, I put my old one back on and it’s works great. I’ll probably return the nest tomorrow
09-30-2021 05:01 PM
That’s what I’m doing… I don’t have patience for no cool air
10-28-2021 03:08 PM
Hey Jfar, Ckquestions,
Apologies for the delayed reply, I wanted to follow up and ensure you are good to go. Please let me know if you have any questions from here, as I would be happy to take a closer look and assist you further.
10-29-2021 02:51 PM
Any update on how to fix? I'm having the exact same issue that just started
10-29-2021 02:52 PM
I gave up, old thermostat worked fine when I put it back on.
11-16-2021 11:17 AM
It looks like we have come to a solution so I'm going to be locking this thread. If you have any other concerns or questions, please feel free to create a new thread.
Have a great day.