Trane XL 80 one burner not lighting

Reply

  #1  
Old 10-14-13, 09:12 PM
Member
Thread Starter
Join Date: Oct 2013
Posts: 2
Trane XL 80 one burner not lighting

I have a Trane XL 80 two stage furnace with 3 burners. It was installed in 1998. Roughly every 15th lighting cycle, the burner that is next to the ignitor fails to light. If I shut down and restart, typically it will light. Sometimes when it won't light I can smell gas near the furnace, other times I don't. The main control board on this furnace was replaced last winter, cost way to much. The furnace will continue to run despite this burner not lighting. I recently replaced the ignitor. Prior to last winter this furnace never had one problem. Any ideas?
 
Sponsored Links
  #2  
Old 10-15-13, 04:57 PM
SeattlePioneer's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Jul 2007
Location: Seattle, Wa
Posts: 5,503
The burners need to be taken out and cleaned with a wire brush.

There are "wings" called carry over ports on the sides of the burners. When the burners are lit, these wings ignite and carry the flame over from burner to burner. A little rust, dirt or grit is what usually plugs up this part of the burner and prevents the burners from lighting up reliably.

If you look carefully, you can observe the process of the burners lighting.

You can try using a pair of pliars or other such object to hammer with moderate force on the burners, which may dislodge the grit and cause the burners to light properly, for a while anyway. The best solution is to remove the burners and clean them thoroughly.
 
  #3  
Old 10-18-13, 12:05 PM
Member
Thread Starter
Join Date: Oct 2013
Posts: 2
thanks

thanks, I just took out the burners and cleaned as you suggested and the furnace lights up much more quickly now. I was surprised at how easy it was. thanks again
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes