How do you change the zone on a duo therm?
Olivia House
Published Feb 08, 2026
How do you change the zone on a duo therm?
It has a 4-button Duo Therm Comfort Control Center that operates the A/Cs, heat strips and furnace. If you have one of these you probably have had problems with the buttons from time to time. To change zones you have to mash down both the FAN and MODE buttons at the same time.
What are the buttons on a duo therm?
How does duo-therm comfort control thermostat work?
Have a Duo-therm comfort control thermostat (5 button) with 2 air conditioners and a furnace. Have not used the ac for a while. Zone 1 I turned on the ac set the temperature and the ac came on as normal. When I changed to zone 2 there was no display except for the “2” indicating zone 2, also the backlight was lit.
What does Zone 2 mean on duo thermostat?
When I changed to zone 2 there was no display except for the “2” indicating zone 2, also the backlight was lit. I then reset the thermostat per manual by turning thermostat off, holding down zone and mode buttons and then turning the thermostat on. When the thermostat rebooted only zone 1 is now available.
How to change thermostat to Zone 2?
When I changed to zone 2 there was no display except for the “2” indicating zone 2, also the backlight was lit. I then reset the thermostat per manual by turning thermostat off, holding down zone and mode buttons and then turning the thermostat on.
It has a 4-button Duo Therm Comfort Control Center that operates the A/Cs, heat strips and furnace. If you have one of these you probably have had problems with the buttons from time to time. To change zones you have to mash down both the FAN and MODE buttons at the same time.
Have a Duo-therm comfort control thermostat (5 button) with 2 air conditioners and a furnace. Have not used the ac for a while. Zone 1 I turned on the ac set the temperature and the ac came on as normal. When I changed to zone 2 there was no display except for the “2” indicating zone 2, also the backlight was lit.
When I changed to zone 2 there was no display except for the “2” indicating zone 2, also the backlight was lit. I then reset the thermostat per manual by turning thermostat off, holding down zone and mode buttons and then turning the thermostat on. When the thermostat rebooted only zone 1 is now available.
When I changed to zone 2 there was no display except for the “2” indicating zone 2, also the backlight was lit. I then reset the thermostat per manual by turning thermostat off, holding down zone and mode buttons and then turning the thermostat on.
