Furnace Burners Shutting Off - 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 03-07-2012, 12:12 AM   #1
Newbie
 
Join Date: Mar 2012
Posts: 1
Rewards Points: 10
Default

Furnace burners shutting off


I have been working on two York packaged rooftop units model # D1HG060 with intermittent pilot ignition and both have the exact same problem. When I set the units for heating everything runs smoothly, but after 5 minutes the burners shut off and there is no voltage on the ignition control. After 5 minutes the burners ignite again then shut off after a few minutes and the cycle continues. I did change the ignition control and filters on one of the units but it did not fix the problem. If anybody can help me it would be great.

Advertisement

ocelot75 is offline   Reply With Quote
Old 03-07-2012, 12:29 AM   #2
Member
 
Join Date: Dec 2009
Posts: 637
Rewards Points: 500
Default

Furnace burners shutting off


Sounds like the high limit is being tripped. Could be a few different things. Did you clock both units?

Advertisement

hvac benny is online now   Reply With Quote
Old 03-07-2012, 12:46 AM   #3
how
Member
 
Join Date: Feb 2011
Location: Vancouver BC
Posts: 1,551
Rewards Points: 618
Default

Furnace burners shutting off


Both units having the identical problem is odd. Is there a flashing led on a board that is giving a diagnostic fault code?
You can eliminate the thermostat as the culprit by jumpering R to W at the furnace thermostat connections while the thermostat is off to see if the unit still short cycles after 5 minutes.
If nothing changes then the pilot flame rods should be cleaned.
Next you need to meter which safety control is causing the lockout.(pressure switch, roll outs, all limits,
Does the blower run continually throughout the short cycle?

Last edited by how; 03-07-2012 at 12:50 AM.
how is online now   Reply With Quote
Reply


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
gas furnace, burners wont stay on mikerva HVAC 3 01-19-2012 05:01 PM
furnace wattage (nat gas burners) BlueBSH HVAC 7 12-17-2011 12:43 PM
Fraser Gas Furnace Burners stopped lighting AZLambdaK1 HVAC 3 11-23-2010 04:34 PM
Dayton Gas Furnace burners wont stay lit Marie1313 HVAC 38 10-08-2009 05:38 PM
American Standard Freedom 80 Furnace not igniting all 4 burners chetw66 HVAC 2 09-25-2009 06:01 PM




Top of Page | View New Posts