Purchased a home with the Nest. When I manually turn on the heat, it works great, but once it reaches the right temperature, the fan keeps running. The app won't let me turn it off, but only gives me an option to run it for a certain amount of time. Even if I pick the lowest option (15 minutes) after an hour it is still running. The only way to turn it off is to turn everything off, so I can only use the Nest manually. How can I fix this?
There are a few different reasons this could happen. It also could depend on which thermostat you have. (these suggestions are general and not necessarily specific to your thermostat or HVAC equipment)
Plus one to this topic. One thing that has changed on my nest, because it's been running flawlessly for 5 years prior, is that after I connected nest to my Google Home automated network and possibly enrolled in some climate control sustainability feature, this is when my fan began running 24/7. Please share when you have a solution and I will as well.
The end result for me was google admitted it was a faulty product. Then tried to have me return the brand “new” $120 product in exchange for a “used” $80 one. Refused to send a new one, refused to give a refund, refused to compensate the $40 difference between a new and used one. So now I have a thermostat that doesn’t work (this was already the second one by the way) and I’m out $120. Worst customer service ever.
SOLUTION: Disable/Cancel Nest Renew from within your Nest App...
My issue didn't start until recently when adding bells and whistles to an already working system installed several years ago. I ventured down this path when adding Nest to my Google Home automations....The problem is not any google home automation...its within the Nest app specifically...Again, DISABLE NEST RENEW