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 02-28-2012, 07:55 PM   #1
Newbie
 
Join Date: Feb 2012
Posts: 8
Share |
Default

Pg9maa-high carbon monoxide reading


I am getting a reading of 1000ppm in between houses. they are less than 3 ft. apart. the exhaust venting appears not to be blowing very hard yet still manages to function. would have thought it would have gone out on pressure. very acidic smell
at front of house. Could this be a inducer motor issue.( not going out on pressure) ???? I am going to remove it tomorrow to check it out. Also, if capacitor is toasted it should kick out on pressure as well.(correct)? Any support would be appreciated as Payne is not a familiar product for me. I know they are all very similar, but hopefully you have more knowledge on this product than I do.


CURIOUS TECH.


Last edited by beenthere; 02-29-2012 at 04:25 AM. Reason: Changed to lowe case
JSCOTTYB is offline   Reply With Quote
Old 02-28-2012, 08:10 PM   #2
Member
 
Join Date: Oct 2007
Location: Manitoba, Canada
Posts: 327
Default

Pg9maa-high carbon monoxide reading


Is there any airflow between the houses or are there fences etc. that are limiting air movement? Is this a 1 pipe, 2 pipe (or coincentric) instalation? Does the exhaust vent push straight accross towards the other house or is it angled towards the open area between the houses?

HVACDave is offline   Reply With Quote
Old 02-28-2012, 08:17 PM   #3
how
Member
 
Join Date: Feb 2011
Location: Vancouver BC
Posts: 1,489
Default

Pg9maa-high carbon monoxide reading


1000 ppm in the open air between houses or from the exhaust outlet??
Are you getting a CO count in the furnace plenum?
When was the last time your co detecter was calibrated?

Age & model of the Payne would help.

Yes the pressure switch would be locking out the furnace with an inducer/capaciter failure. Do you have a blinking led diagnostic light on the furnace? Has the furnace been locking out?
how is offline   Reply With Quote
Old 02-28-2012, 09:33 PM   #4
Member
 
Join Date: Oct 2009
Location: Nebraska
Posts: 2,362
Default

Pg9maa-high carbon monoxide reading


A 1000 ppm outside? That furnace better be shut off right now. Excess fuel, not enough combustion air,broken or plugged heat exchanger are all prime causes of high CO in the flue gas.
Marty S. is offline   Reply With Quote
Old 02-29-2012, 12:19 PM   #5
Newbie
 
Join Date: Feb 2012
Posts: 8
Default

Pg9maa-high carbon monoxide reading


1-single pipe
2-approx 10 yrs
3-nothing in plenum
4-pg9maa036080

agree about lack of combustion air and fuel mix.also heat is not quite the same in the house although furnace runs for a
long time.

Will let you know what i find!

TY FOR ANY HELP YOU HAVE GIVEN
JSCOTTYB is offline   Reply With Quote
Old 02-29-2012, 12:35 PM   #6
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,253
Default

Pg9maa-high carbon monoxide reading


Is it burning nat gas or propane? check the hose on the burner box that attaches to the gas valve to make sure it is intact and not cracked/leaking. it modulates the gas pressure. did U check the manifold pressure? pull the blower and look for water on the secondary exchanger as they had lots of failures of them. that may be the real problem.
__________________
"Cut it twice and it is still too short".

Last edited by yuri; 02-29-2012 at 12:48 PM.
yuri is offline   Reply With Quote
Old 03-05-2012, 02:33 PM   #7
Newbie
 
Join Date: Feb 2012
Posts: 8
Default

Pg9maa-high carbon monoxide reading


Pulled venting apart(no blockage). Removed inducer motor and ran it while removed(more air flow thru inducer was obvious).....blocked exchanger diagnosed! Change exchanger or furnace replacement....customers choice! Exchanger may be under warranty but labour is extra.

Thank you for your assistance guys! Ttyl :d
JSCOTTYB is offline   Reply With Quote
Old 03-05-2012, 02:42 PM   #8
Hvac Pro
 
Join Date: Nov 2008
Location: Winnipeg, Canada
Posts: 9,253
Default

Pg9maa-high carbon monoxide reading


Hate to be negative but obviously it will move more air when disconnected. It is designed to work against a properly sized vent system. We use a differential manometer to check flow thru a heat exchanger and the pressure switch prevents it from firing when it is too low or blocked. Hope you don't get burned on a misdiagnosis.
__________________
"Cut it twice and it is still too short".
yuri is offline   Reply With Quote
Old 03-07-2012, 10:42 PM   #9
Newbie
 
Join Date: Feb 2012
Posts: 8
Default

Pg9maa-high carbon monoxide reading


ALREADY CHECKED ALL YOU RECOMMENDED BEFORE HAND. TALKED TO TECH SUPPORT ABOUT READINGS JUST TO BE SURE AND THEY ALSO
FIGURED IT WAS A BLOCKED EXCHANGER! THE OLDER PAYNES HAVE VERY SMALL PART OF THE EXCHANGER ON THE BOTTOM. THIS IS LIKELY WHERE IT'S BLOCKED. AND YES I AGREE ABOUT GOING OUT ON PRESSURE. I APPRECIATE YOUR ASSISTANCE THOUGH!

JSCOTTYB is offline   Reply With Quote
Reply

Tags
curious tech.


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
Humidity Reading Jerry8C HVAC 11 11-11-2011 03:36 PM
VisionPro Outdoor Sensor Reading inaccurate bstone17901 HVAC 20 10-12-2011 06:59 AM
2 Pipe Fan Coil AC vertical Cab - 1/10HP Blower Motor High Speed Problem Tyndale HVAC 5 07-10-2011 12:50 PM
Electrical Problem w/ New AC Blower Motors - High Speed shuts off after 15 Min? Tyndale Electrical 6 07-10-2011 03:58 AM
High Oil Pressure reading, knocking engine GeraldR Automotive Repairs 8 08-02-2010 04:56 PM




Top of Page | View New Posts

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