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Old 01-22-2011, 09:02 AM   #1
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Trane XE90 clicking


Have a Trane XE90 furnace. Just before it ignites, it starts clicking. Sometimes a lot of clicking going on. Goes away once furnace ignites. I'm getting nervous because I'm afaid it won't ignite one of these times. Thanks for the help.

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Old 01-22-2011, 09:13 AM   #2
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Trane XE90 clicking


How old is it and post the complete model #. If it never clicked B4 then a relay or the gas valve is clicking and may fail soon. Take the front cover off and make a video and post on youtube and link it here if you can. Best to get a Pro to check it.

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Old 01-22-2011, 09:22 AM   #3
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Trane XE90 clicking


Complete model # TTRO18D100AO
TUCO60C936AO Was put in 1996. Can I just take a pic of the inside and post it here instead of a vid? Thanks.
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Old 01-22-2011, 09:24 AM   #4
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Trane XE90 clicking


No, we need to here the clicking if possible. A pic will help determine which components you have but not the sound. I do mostly Lennox but we have some Trane guys here.
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Old 01-22-2011, 09:26 AM   #5
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Trane XE90 clicking


oh.....I see. Ok
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Old 01-22-2011, 10:43 AM   #6
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Trane XE90 clicking


Well figure this one out. All set to record and it didn't do it this time. Just one normal "click". So... looks like it doesn't do it all of the time.
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Old 01-22-2011, 10:58 AM   #7
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Trane XE90 clicking


Now you know what techs go thru with intermittent problems. Patience is a virtue. Pay one of your kids a couple $$ an hour to "monitor it" if you have them.
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Old 01-22-2011, 11:04 AM   #8
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Trane XE90 clicking


Lol.....yea right they're still sleeping! I've been monitoring it, and it's been through 3 cycles since. Still normal "click". Will post back when she decides to act up. Thanks.
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Old 01-23-2011, 07:40 PM   #9
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Trane XE90 clicking


Well after countless hours of monitoring this, I was only able to get it to click two times, which is still abnormal. Should only click once. Sometimes it will do multiple chicks at a time, but this is all I could get. See link for youtube video. Thanks.
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Old 01-23-2011, 08:16 PM   #10
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Trane XE90 clicking


That sound is the gas valve clicking. Should only click once. Could be the relay for it on the circuit board is failing. May need a new board soon. Or the pressure switch is fluttering. May have to let it get worse before it can be figured out.
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Last edited by yuri; 01-23-2011 at 08:18 PM.
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Old 01-23-2011, 08:38 PM   #11
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Trane XE90 clicking


What is the most likely bad part based on your past experience. I know you don't know 100% Just give me odds, thanks.
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Old 01-23-2011, 09:16 PM   #12
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Trane XE90 clicking


The circuit board. Pressure switches can flutter but they should cause the board to recycle and run a purge cycle and retry the ignition process. If they do it quick enough it may not recycle the board. I would say 95% board, 5% pressure switch. You can replace the pressure switch yourself if you can find a genuine Trane parts dealer. Don't buy from z-bay etc as there are LOTS of non OEM knockoff/cloned cheater parts out there.
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Old 01-23-2011, 09:19 PM   #13
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Trane XE90 clicking


Thanks. Any sites you can point me to for Trane parts?
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Old 01-23-2011, 09:24 PM   #14
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Trane XE90 clicking


Unfortunately no, I am a Lennox tech and use Cozyparts.com for Lennox stuff. Hang in there maybe one of the other Pros can help. Pressure switches are not that expensive so you may want to change it anyway. They wear out so I would do that first.
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Old 01-23-2011, 09:26 PM   #15
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Trane XE90 clicking


Thanks for your help.....I'll sit tight.

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