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 10-22-2008, 06:46 PM   #1
Cabin Guy
 
Join Date: Oct 2008
Location: N. Illinois
Posts: 2
Send a message via ICQ to leedef Send a message via Yahoo to leedef Send a message via Skype™ to leedef
Share |
Default

Comfortmaker RPJ-II - won't stay lit


I seem to have 2 problems happening at once.

When heat is called for the Evac fan runs for about 30 seconds as it should. Then the igniter glows for about 5 seconds, then the valve clicks and the far right burner (#1) lights... the flame migrates to burner #2 and it lights... the flame migrates to burner #3 and it lights... then the flame migrates to burner #4... and IT DOESN'T LIGHT... and the unit shuts down immediately.

However, if I insert a lit fireplace lighter at the opening of burner #4 just after #3 lights it ignites and burns fine... only to have everything shut down after 20 seconds or so.

Please see attachment.

Is it possible that I have something clogging the opening (spider web or such) where the flame is supposed to "walk" across from burner #3 to #4? If so, how do I clean it?

In addition, because the system shuts down even though I get all 4 burners going, might I also have a bad Flame Sensor?
Attached Thumbnails
Comfortmaker RPJ-II - won't stay lit-comfortmaker.jpg  

leedef is offline   Reply With Quote
Old 10-22-2008, 08:58 PM   #2
30 year tech
 
hvac122's Avatar
 
Join Date: Dec 2007
Location: Lincoln, Nebraska
Posts: 427
Default

Comfortmaker RPJ-II - won't stay lit


Sounds like you just need a good cleaning. Clean out the burner crossovers and clean the flame sensor with scotchbrite.

hvac122 is offline   Reply With Quote
Old 10-22-2008, 10:25 PM   #3
Member
 
HvacWiz's Avatar
 
Join Date: Nov 2006
Location: Northwest Ohio
Posts: 286
Default

Comfortmaker RPJ-II - won't stay lit


You might want to check the gas pressure also.

Last edited by HvacWiz; 10-23-2008 at 12:49 AM.
HvacWiz is offline   Reply With Quote
Old 10-22-2008, 10:35 PM   #4
Member
 
hvaclover's Avatar
 
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,704
Default

Comfortmaker RPJ-II - won't stay lit


Quote:
Originally Posted by HvacWiz View Post
You also might want to check the gas pressure also.
word!
__________________
Just slow, not stupid.
hvaclover is offline   Reply With Quote
Old 10-23-2008, 11:03 AM   #5
Cabin Guy
 
Join Date: Oct 2008
Location: N. Illinois
Posts: 2
Send a message via ICQ to leedef Send a message via Yahoo to leedef Send a message via Skype™ to leedef
Default

Comfortmaker RPJ-II - won't stay lit


Quote:
Originally Posted by hvac122 View Post
Sounds like you just need a good cleaning. Clean out the burner crossovers and clean the flame sensor with scotchbrite.
Any special technique for cleaning the crossovers?
leedef is offline   Reply With Quote
Old 10-23-2008, 12:44 PM   #6
Member
 
hvaclover's Avatar
 
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,704
Default

Comfortmaker RPJ-II - won't stay lit


A brass or stell brush is recommended. However you must be carefull not to open the cross over groove. That is do not try to expand the opening to get at dirt and corrision.

It is very possible that the ceross over is corroded beyond repair.

If you have scrubbed the cross over as throughly as possible and it still doe not work then you will have to buy a new burner.
__________________
Just slow, not stupid.
hvaclover is offline   Reply With Quote
Old 10-29-2008, 05:20 PM   #7
Newbie
 
Join Date: Oct 2008
Posts: 17
Default

Comfortmaker RPJ-II - won't stay lit


I use a hacksaw blade on the crossovers and if I bend too far open just tap back to size, works great, check orifice holes also.

Simpleman
simpleman1962 is offline   Reply With Quote
Old 10-29-2008, 07:42 PM   #8
Member
 
hvaclover's Avatar
 
Join Date: Oct 2008
Location: Suburbs of Detroit Mi
Posts: 3,704
Default

Comfortmaker RPJ-II - won't stay lit


Quote:
Originally Posted by simpleman1962 View Post
I use a hacksaw blade on the crossovers and if I bend too far open just tap back to size, works great, check orifice holes also.

Simpleman

LOL...you like to live dangerously. I tried to do something similar and when my ICP dist found out he damn near dumped my account.

__________________
Just slow, not stupid.
hvaclover 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
Comfortmaker blower intermittent problem jh44ny HVAC 12 07-31-2011 06:41 PM
'93 Comfortmaker RPJ propane furnace lifespan? Dawsonhope HVAC 5 11-21-2008 05:47 AM
Lights stay on wsixsmith Electrical 19 08-05-2008 06:43 PM
Is a pilot light supose to stay on? simonb HVAC 2 06-11-2008 05:16 PM




Top of Page | View New Posts

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