Help with Trane XE90 Furnace

Problems related to residential installations.

Help with Trane XE90 Furnace

Postby jstoub1 » Tue Apr 19, 2011 8:36 am

My Trane furnace is having issues staying lit. The control board light gives me an error of 2 flashes, which doesn't tell much. The heating element seems to be fine, and the gas valve opens and I can see flames. But, after 2-3 seconds, it shuts off the gas valve again, and when it does I hear a small "whoosh" or "hiss" sound. After cycling through, it will try again a couple times until I get the error code.

I cleaned the flame sensor last night, and it did start working after a couple tries, but only stayed on for 20-30 minutes before shutting off again.

Other than trying to clean the flame sensor again more thoroughly today, what else can I try? I spoke to an HVAC tech who told me I might be having an issue with my control board, or might need a new "capacitor" which is common with Trane furnaces. After doing some research I'm thinking he meant a Run Capacitor.

Please help if you think you can.
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- Help with Trane XE90 Furnace

Postby aircooledtx » Wed Apr 27, 2011 12:36 pm

**"jstoub1"-* Trane furnace is having issues staying lit. The control board light gives me an error of 2 flashes, which doesn't tell much. The heating element seems to be fine, and the gas valve opens and I can see flames. But, after 2-3 seconds, it shuts off the gas valve again, and when it does I hear a small "whoosh" or "hiss" sound. After cycling through, it will try again a couple times until I get the error code.

I cleaned the flame sensor last night, and it did start working after a couple tries, but only stayed on for 20-30 minutes before shutting off again.

Other than trying to clean the flame sensor again more thoroughly today, what else can I try? I spoke to an HVAC tech who told me I might be having an issue with my control board, or might need a new "capacitor" which is common with Trane furnaces. After doing some research I'm thinking he meant a Run Capacitor.

Please help if you think you can.*/-*
Check the grounds on your system..
aircooledtx
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