Trane XL90 Problems...No Ignition


Old 12-13-12, 10:33 AM
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Join Date: Mar 2011
Location: usa
Posts: 12
Trane XL90 Problems...No Ignition

I was able to solve my Trane XL90 ventilation pressure sensing problems last year, now my upstairs unit is acting up. ( )

This time I don't think it is going to be so easy. The pressure switch is working ok and I get clicking but no ignition. I'm not home now but this evening I'll be checking the ignitor. From what I read it is 24V.

I found some related threads with things to try: ( )
Thread with pictures of limit switch on same model ( On a Trane XL90 furnace, igniter comes on and stays on for - JustAnswer )
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Old 12-13-12, 12:35 PM
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Join Date: Oct 2002
Location: Hamilton County, Ohio
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I'm pretty sure that your hot surface ignitor is 120 VAC, not 24 Volt. I had one last six years, another run less than a year, and my current one is going on ten years.
Old 12-13-12, 03:56 PM
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Join Date: Mar 2011
Location: usa
Posts: 12
Yes, thanks 120v and this is showing correctly. So, I removed the ignitor and it is fractured. I have a new one and a spare for the other furnace to pick up tomorrow at a local Grainger warehouse.

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