Problem with 2003 York Diamond 80 Furnace not heating


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Old 10-28-12, 01:42 PM
J
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Problem with 2003 York Diamond 80 Furnace not heating

Have problem with 2003 York Diamond 80 (80% efficiency) not heating. Starts up with vent motor running and igniter cycling on & off (3) times. After cycling (3) times, (7) flashes on mother board indicating no ignition and shuts down. Replaced thermostat and got same behavior. I have an identical unit setting next to this one but do not want to tear down working one to troubleshoot the broken unit. Anyone have any suggestions as to what the problem might be?
 
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Old 10-28-12, 01:56 PM
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do the burners ignite and then go out?
 
 

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