Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > HVAC

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 10-03-2009, 09:50 AM   #1
Newbie
 
Join Date: Oct 2009
Posts: 3
Rewards Points: 10
Default

Heil Furnace - No primary ignition


Working on a Heil model NTGM075EGA2:

Flu vent blower comes on
Igniter starts
Pilot lights ( blue flame )
Main blower comes on

Main ignition never happens. I suspect there is an issue with the gas valve, but would like to exhaust all possibilities before I buy one.

destefano613 is offline   Reply With Quote
Old 10-03-2009, 09:58 AM   #2
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,605
Rewards Points: 2,348
Default

Heil Furnace - No primary ignition


Does the gas valve have numbers like SV****. If so, you have the infamous "Smart valve/idiot valve" and they are nothing but trouble. Try removing and replugging the wiring harnesses carefully into the valve and see if that works.

yuri is offline   Reply With Quote
Old 10-03-2009, 10:23 AM   #3
Newbie
 
Join Date: Oct 2009
Posts: 3
Rewards Points: 10
Default

Heil Furnace - No primary ignition


Gas valve SV9500M2674 .......... I guess that means lucky me.
destefano613 is offline   Reply With Quote
Old 10-03-2009, 10:28 AM   #4
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,605
Rewards Points: 2,348
Default

Heil Furnace - No primary ignition


Yep. It could also be that the pilot burner and flame sensor/igniter combo needs replacing. They get corroded and may not produce enough signal to open the valve. 95% of the time it is the idiot valve. How old is the furnace? There have been lots of problems with some of those furnaces and their heat exchangers cracking/popping the compression rings that hold them together. (Back in a hr, got to do a PM on the neighbors furnace).

Last edited by yuri; 10-03-2009 at 10:32 AM.
yuri is offline   Reply With Quote
Old 10-03-2009, 12:26 PM   #5
Newbie
 
Join Date: Oct 2009
Posts: 3
Rewards Points: 10
Default

Heil Furnace - No primary ignition


Have previously replaced heat exchanger for cracking and broken "rivets". replaced sensor 2 seasons ago, other componets over the years. I figured it was time for the gas valve. This has been a pretty problematic system from the get go ( unit is about 15 yrs old ). Most every thing on the AC side has failed at one time or another also - pretty dissapointed in the Heil system.
destefano613 is offline   Reply With Quote
Old 10-03-2009, 12:30 PM   #6
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,605
Rewards Points: 2,348
Default

Heil Furnace - No primary ignition


15 yrs is very good for that valve. You can replace it or with the tax credits invest in a new higher efficiency unit. The newer Heils/ICP are better. I prefer Lennox.

yuri is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Heil Furnace Burner Problem timothyr HVAC 79 02-12-2014 07:01 PM
Heil furnace leaks gas emaxxman HVAC 1 06-18-2009 04:43 PM
furnace ignition troubleshooting buju HVAC 22 01-14-2009 10:41 PM
Problems with new furnace..Overheating, having to reset. Furnace too big? Tommy2 HVAC 41 12-01-2008 01:55 PM
New Cased Coil - Install to Furnace - PICTURES!! hartkem HVAC 39 11-18-2008 01:45 AM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.