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- Tue Dec 21, 2021 3:26 pm
- Forum: Control Board
- Topic: M 201 Issue
- Replies: 1
- Views: 3741
Re: M 201 Issue
Hello. If the heating system won't turn OFF, that is if heat keeps being delivered even when you don't want it, set the thermostat to its lowest temperature setting and wait three to five minutes. Or if your thermostat has a HEAT OFF COOL or FAN AUTO OFF control, set the control to OFF or COOL.