Question about Heating & Cooling
How long unit runs after reset .If limit tripped blower motor will still run and if that's the case you might have a bad heat exchanger
Posted on May 25, 2017
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Posted on Jan 02, 2017
SOURCE: Working on a Carrier sx
Check the heater relay on the control board found in the blower part of this furnace. It's found in a steel enclosed box
I'm having the same problem currently. I now have the blower running constantly set the thermostat to on not auto. until the part arrives
This has happened before but this time the relay has gone cloudy from sparking on and off. Tapping the relay may help just be careful when you have bypassed the door switch.
Posted on Dec 21, 2008
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