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Discussion Starter #1
my furnace fan just continues to run. I have no control of heat or air. I see the call for heat or cooling on the thermostat, but no action with the furnace just the blower. any help?
 

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Look for the flashing LED light on the control board, it's probably flashing a code that you can look up on the furnace door. Many newer furnaces run the blower continuously when there is a problem. Could be something as simple as a dirty flame rod or a bad hot surface igniter (HSI).
 
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