Ask Me Help Desk - Central heater comes on when thermostat is on OFF

Ask Me Help Desk (https://www.askmehelpdesk.com/forum.php)

- Heating & Air Conditioning (https://www.askmehelpdesk.com/forumdisplay.php?f=150)

- - Central heater comes on when thermostat is on OFF (https://www.askmehelpdesk.com/showthread.php?t=199213)

Central heater comes on when thermostat is on OFF

My 2nd floor heater has came on 3 times when the thermostat is on OFF. Only thing I changed was the filter 2 weeks ago. Battery is fine.

This problem occurred 2 years ago in the summer time and I had the dualzone circuit replaced. Now it's happening again.

Basic info: I have dual zone, 1st story is fine.

Could be the dual zone circuit acting up again.

All times are GMT -7. The time now is 10:22 AM.