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04-11-2010, 10:40 PM
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TRANE XB80 no heat!
Brand: -brand- Age: 1 - 5 years
Hello folks! Yesterday after coming home
 from work I noticed the house was a bit chilly. Noticed air was being blown but it was only cold air.The following is what I know and what I have looked at. 1) Heat is commanded vent motor fires up. After about 6 seconds vent motor shuts off and main fan blower kicks on. No flame, no ignition... 2) Error LED flashes 6 times. Supposed to mean 115VAC reveresed polarity or bad ground. 3) I checked all powerI have 120VAC.. getting to the circuit board. I have 120VAC on Primary of transformer and 27VAC on secondary being fed to CB. 4) I have no voltage ever getting sent to Gas valve or ignitor. Have clean filter shorted out safety switched one at a time same results. This one is bugging me I am not sure what the cause would be... I am thinking it may be the Circuit board but I don't know. About ready to give in and call HVAC tech but any other advice would be welcome. Regards, Tom Spokane, WA Ads By Google 
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04-16-2010, 05:04 PM
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