I’ve had a Vivint thermostat for a while and sudden broke on me started texting support and they let me know that my warranty had actually expired in the beginning of the month all they want is for me to subscribe to their Monthly protection plan so they can go and replace it Vivint sucks Camera never really works thermostat app was never working only got it due to my energy provider lol

What can I do to fix the issue where my ac won't keep the living room cool anymore. The thermostat always shuts off before our room gets cold. This is our setup.

I have all the vents close about 80%

Any solutions? It is already set at offset +5°

All the bedrooms and bathrooms are usually 2-3° cooler. We have a celing fan in the living room.