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not preheating before blower cycles on

Posted by LJ in TX on January 7th, 2002 11:47 PM
In reply to Heat-Cool Thermostat by Scott on January 7th, 2002 09:17 PM [Go to top of thread]

was the preheat working before you changed out the thermostat??? I think this function is controlled by a timer in the furnace in the attic and not affected by the thermostat you installed.
If you want to recover the preheat function, you need to call a pro to troubleshoot your furnace and make the needed fix. Post back with why you changed the thermostat and wiring in the first place. LJ

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