XR-90 TRANE Furnace doesn't start up, No Red LED

Reply

  #1  
Old 06-01-13, 03:28 PM
Member
Thread Starter
Join Date: Jun 2013
Location: Canada
Posts: 2
Received 0 Votes on 0 Posts
Question XR-90 TRANE Furnace doesn't start up, No Red LED

Hi, I have a XR-90 Trane furnace, installed in 2004. It was working fine both heating and cooling. But as of today, it doesn't turn on. Red LED doesn't come on as before, but if I press the on/off safety switch on the access panel 2 times quickly and the LED lights up with some click sound. However the LED has very low brightness. And does not start up anything. No fan running in "auto" or "on" mode. Only hear a humming noise from the transformer.

What could have gone wrong? Please help to determine the problem.

I appreciate your help.

Thank you,
Rishi
 
Sponsored Links
  #2  
Old 06-01-13, 04:08 PM
PJmax's Avatar
Group Moderator
Join Date: Oct 2012
Location: Northern NJ - USA
Posts: 53,230
Received 380 Votes on 357 Posts
Welcome to the forums.

Is there a protection fuse on the board...... if so..... have you checked it ?

Do you have a volt/ohmmeter ? It may be needed here.
 
  #3  
Old 06-01-13, 04:27 PM
Member
Thread Starter
Join Date: Jun 2013
Location: Canada
Posts: 2
Received 0 Votes on 0 Posts
Thank you.
I checked the fuse, it is ok.
I have a multimeter.
 
  #4  
Old 06-02-13, 06:18 AM
hvactechfw's Avatar
Member
Join Date: Jan 2011
Posts: 6,245
Received 0 Votes on 0 Posts
Check for 24VAC between R and C at the control board in the furnace. Remember to push the door switch in.
 
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
 
Ask a Question
Question Title:
Description:
Your question will be posted in: