0

I have a bog standard HVAC system with a Nest thermostat. When I tell the theromostat to turn the fan on for 15 minutes the A/C compressor also kicks on. Is this normal?

1

This is not normal. When the thermostat energizes the G terminal, only the blower fan should come on.

Check for a jumper/short between Y and G either at the thermostat, or the air handler.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.