I have a Carrier Weathermaker SX model 58SX060-CC-1, series 170, 66,000 BTU furnace. The intake/exhaust fan starts when the thermostat tells it to, the pilot lights, but the main flame does not ignite.
The problem started this morning I changed batteries in thermostat and turned on furnace. The burner started, exhaust fan turned on but the main blower would not turn on. After a few minutes, the burner turned off and the main fan turned on. I turned the fan from Auto to On and the house warmed up. I then waited to here thermostat turn off and that was the last time the burner turned on. Now the blower runs all the time with out heat?
Remove all power from the furnace, it is likely the brain in the furnace is need of being reset, from the battery replacement, why did you change the battery, was there an indicator telling you to change it?
Many times just removing all the power to the furnace will do the trick with a reset, if not let me know and we will go from there, but it sounds like the main brain is confused or bad, more likely confused, so try the power removed first.
Than let me know [email protected]
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