Trane XE80 / XE 80 works sometime, flashes nine times, won't restart

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  #1  
Old 01-21-11, 09:37 PM
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Trane XE80 / XE 80 works sometime, flashes nine times, won't restart

My 10 year old Trane XE80 works some of the time but then sometimes it won't fire up again. The ignitor (which is new) lights up and when it goes to release the gas it just makes a clicking noise but it does not ignite but then the blower fan starts up blowing room temperature air. I checked the flashing error code light and it is flashing nine times.

I have replaced the ignitor and flame sensor.

Any suggestions for what I should look at next? One friend mentioned it might have something to do with a vacuum?

It is very cold out tonight and I would love to get to the bottom of this.

Thanks in advance.
 
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Old 01-21-11, 11:27 PM
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Usually there is a key to the diagnostic codes to be found on the inside of the blower door cover or in the furnace burner compartment. Look for that and post what the nine flash code is signaling.
 
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Old 01-22-11, 04:39 AM
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The error code I am getting is nine led flashes which the panel tells me is "Check Ignitor". The ignitor is brand new and appears to be functioning correctly. It glows bright when it tries to go through a start up and fails. I then kill the power to the furnace, wait a few seconds, and when I re-apply the power the furnace fires up fine.
 
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Old 01-23-11, 08:36 PM
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Any suggestions as what to look at next?
 
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Old 01-23-11, 11:27 PM
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Measure the AC voltage being applied to the electric gas valve.


The ignitor should glow white hot and then 24VAC should be switched on to operate the gas valve.

Se if you have the proper voltage. If you do, you have a gas valve problem. If you don't, you probably have an ignition control problem.
 
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Old 01-25-11, 12:17 PM
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I will check the current tonight. Are either the gas valve problem or ignition control problem something I might be able to tackle fixing/replacing myself or should I just call a specialist do you think?

Thanks for your time.

R. Joe
 
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