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Duo Therm 5 Button Thermostat for heat/air

Robert Brown

New member
Why does my led window on the thermostat go blank?
Duo Therm 5 Button 2 Zone Thermostat
This is the second one that's done this
 
Last edited:

road squawker

Active member
GOLD Site Supporter
the 5 button unit has been replaced with a 12 button unit.

do you have one zone set o HEAT, and another zone set to COOL?

this will often "confuse" the controller,.... try a system "reset".
 
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