Lennox 80MGF-75A Furnace Won't Ignite - HVAC - DIY Chatroom Home Improvement Forum


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

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

Reply
 
Thread Tools Display Modes
Old 11-04-2012, 12:34 PM   #1
Newbie
 
Join Date: Nov 2012
Posts: 1
Rewards Points: 10
Default

Lennox 80MGF-75A Furnace won't ignite


It's cold in East Windsor, NJ and all HVAC and other utility repair crews are focused on Hurricane Sandy recovery.

Our Lennox 80MGF-75A furnace is not providing heat to the home. The gas is on (the Honeywell valve inside the furnace is in the open/on position as well) and the thermostat batteries have been replaced. I pulled the ignitor, inspected it, and cleaned it.

The LED lights indicate normal operation (synchronized flashing green fast when the thermostat calls for heat, synch'd flashing slow when not calling).

When heat is called for, the blower motor engages on. There is no ignition sound from the ignitor (no clicking sound that I would expect to hear as sparks are being generated).
I've read through the user manual:
http://hvacpartsshop.net/80MGF_Series.pdf?b467e680

The furnace is a 1998 install, and everything seems normal except for the lack of ignition. No gas smell emerges when heat is called for, either.

Any help on troubleshooting is greatly appreciated! Thanks, John

Advertisement

NavyAir96 is offline   Reply With Quote
Old 11-04-2012, 07:18 PM   #2
An old Tradesmen
 
Join Date: Oct 2008
Location: PA
Posts: 26,537
Rewards Points: 4,712
Default

Lennox 80MGF-75A Furnace won't ignite


Could be a bad ignition module.

Advertisement

beenthere is offline   Reply With Quote
Reply

Tags
80mgf , furnace won't ignite , lennox


Thread Tools
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
Lennox Furnace 80UHG3 Won't Ignite KeithGP HVAC 8 03-22-2014 12:22 PM
Lennox Elite Series Furnace Problem steges HVAC 7 11-06-2010 03:49 PM
Lennox Furnace not working when very cold bsharitt HVAC 2 02-11-2010 06:58 PM
Portable generator and Lennox furnace joshbloomberg Electrical 7 02-10-2010 11:25 PM
For all you Lennox owners ibwahooka HVAC 9 11-23-2008 05:06 AM




Top of Page | View New Posts