Help needed with Ducane furnace..


  #1  
Old 04-08-11, 04:04 PM
G
Member
Thread Starter
Join Date: Apr 2011
Location: USA
Posts: 1
Upvotes: 0
Received 0 Upvotes on 0 Posts
Help needed with Ducane furnace..

I have a Ducane furnace and by the way it's acting, I'm 99.99% sure the thermocouple needs replaced. I don't have a voltage regulator to test it. I mostly would like to be able to put in the model and serial number somewhere and find a schematic of this furnace and/or list of parts. Perhaps it has a spark igniter instead of a thermocouple? or flame sensor? or ?? I know the natural gas part of the furnace is working correctly. The pilot light is on. I can hear the furnace come on and see the pilot light. I can hear it roar and additional "flame on" type thing happen. Then sometimes the fan kicks in and sometimes it doesn't. Sometimes the fan stays on and blows warm air around the house and sometimes it doesn't. Thanks for any assistance you can give!!
 
  #2  
Old 04-08-11, 05:33 PM
SeattlePioneer's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Jul 2007
Location: Seattle, Wa
Posts: 4,469
Upvotes: 0
Received 1 Upvote on 1 Post
You need to take the cover off the burner compartment of your furnace and carefully observe and report the sequence of events that happens when you turn the thermostat up.

Check to see if you have a standing pilot light that stays lit when the thermostat is turned down and is not calling for heat.
 
  #3  
Old 04-09-11, 08:37 AM
K
Member
Join Date: Oct 2010
Location: United States
Posts: 57
Upvotes: 0
Received 0 Upvotes on 0 Posts
If your furnace is old enough to have a standing pilot, there's a good chance that it also has a fan/limit switch. Sounds like that may be sticking...
 
 

Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: