Carrier Furnace Won't Turn On-Please help!

Reply

  #1  
Old 02-27-08, 09:13 PM
Member
Thread Starter
Join Date: Feb 2008
Posts: 1
Received 0 Votes on 0 Posts
Carrier Furnace Won't Turn On-Please help!

I have Carrier residential furnace with control board HH84AA009. The unit does not turn on at all. I have checked the thermostat and it is OK. The 24V transformer puts out 24v. I suspect the control board is shot but there is no way to confirm. Before purchasing a new control board I wanted to check to see if there was a way to confirm the failure. Could there be anything else that's preventing the ignition process to kick-in?

Thanks in advance for the help
 
Sponsored Links
  #2  
Old 02-28-08, 03:41 PM
Member
Join Date: Feb 2008
Posts: 2
Received 0 Votes on 0 Posts
Carrier Furnace

I also have a carrier furnace and had this same problem two weeks ago. My unit is a #58SSB. I have no idea if the units are the same, or if carrier has similar systems but...

What got mine started again is what Carrier calls a temperature activated safety switch. It sits on the right-hand side at the very top inside the unit. There is a single wire that connects up to it, so it looks like a terminal, not a switch. When I reached my finger up on top of it I could feel a button, pushed it down and bingo!

Good luck and let me know if this works.
 
  #3  
Old 02-29-08, 05:44 AM
mattison's Avatar
Member
Join Date: Mar 2003
Location: Cinti, OH
Posts: 5,549
Received 0 Votes on 0 Posts
Most of the time you can check a board simply by checking if it has the proper voltage going into it and on a call for heat if it has the proper voltage coming out.
 
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: