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 10-05-2011, 10:55 PM   #1
Newbie
 
Join Date: Oct 2011
Posts: 2
Share |
Default

furnace short cycle


I have a heil hih efficient furnace that ignites fine but as blower starts gas valve shuts down. when blower cycle ends ignition begins again and so on and so on

kwidzins is offline   Reply With Quote
Old 10-06-2011, 02:19 AM   #2
REP
Member
 
Join Date: Jul 2011
Posts: 615
Default

furnace short cycle


Is blower pulling flame off the sensor?

REP is offline   Reply With Quote
Old 10-06-2011, 06:11 PM   #3
Member
 
Join Date: Sep 2010
Posts: 449
Default

furnace short cycle


Try cleaning sensor. Cost: 1 piece emory cloth.

http://www.youtube.com/watch?v=I86jo...eature=related
diyorpay is offline   Reply With Quote
Old 10-06-2011, 06:52 PM   #4
Member
 
Join Date: Oct 2011
Location: pa
Posts: 4,244
Default

furnace short cycle


how long have you had furnace, is there a t-87 thermostat with heat antispater may need to move adjuster for longer burn??

Last edited by ben's plumbing; 10-06-2011 at 08:38 PM.
ben's plumbing is offline   Reply With Quote
Old 10-06-2011, 06:54 PM   #5
Member
 
Join Date: Oct 2011
Location: pa
Posts: 4,244
Default

furnace short cycle


may also be limit switch acting up??
ben's plumbing is offline   Reply With Quote
Old 10-06-2011, 07:23 PM   #6
Member
 
biggles's Avatar
 
Join Date: Jan 2008
Location: Long Island
Posts: 3,600
Default

furnace short cycle


when the blower starts do you see the flames waving in the burner section....shouldn't see any flames bouncing
biggles is offline   Reply With Quote
Old 10-06-2011, 09:08 PM   #7
Newbie
 
Join Date: Oct 2011
Posts: 2
Default

furnace short cycle


valve shut off is instant b4 fan even gets up to speed. fan limit is time delay. could it be fan control or fan relay ? how do i check these

kwidzins 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
Furnace blower short cycling on AC only jaycamp HVAC 2 06-07-2011 10:06 PM
Reducing BTU's tedhermitage HVAC 11 10-28-2009 05:55 PM
Olsen BFL 120 Furnace DaleB HVAC 12 12-19-2008 10:42 PM
dayton furnace cycle prob. firefighter23 HVAC 4 02-01-2008 05:57 PM
Whirlpool Furnace - Burners cycle every 10 to 20 Seconds agtsrbt HVAC 3 02-06-2007 04:39 PM




Top of Page | View New Posts

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