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View Full Version : Concord 80 plus furn.


roofer 45
Jan 8, 2009, 11:55 AM
The furnace is about 4 years old was working great yesterday now it won't heat the ac works the fan on manual works the heater dose nothing is there anything I can do without calling in expensive repair people

hvac1000
Jan 8, 2009, 01:02 PM
Look on the circuit board and see how many blinks. Then look on the blower door to see what the legend says about blinks.