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Old 02-27-2009, 12:15 PM   #31
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Heil furnace inducer vibrating, capcitor handling question


Depends how many parts you change that aren't bad.
As to weather or not, your saving any money by not having a tech come out.

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Old 02-27-2009, 12:18 PM   #32
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Heil furnace inducer vibrating, capcitor handling question


[QUOTE=diggerdave;237714]
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Originally Posted by hvaclover View Post

Absolutely, I agree with you 100%. It's the last thing I want to do and I can garuntee you I appreciate the pros help more than anyone else on this board. Really, I am greatful for everyone's help!!!!! Thank you again everyone!!!!

Late last night in my other thread I got lambasted by plumber101 for asking questions. Yuri's and my posts got crossed, and apparently Plumber101 thought I was blowing Yuri off - not the case at all. It didn't sit well, especially on a DIY board. I explained what had happened and explained what my intentions were and how I appreciated the pros help here. From the other thread:
"Yes I plan on listening to yuri and following his suggestions - as well as any other pros here - I appreciate their input very much."
"If the pros didn't want to graciously help people on forums like these they wouldn't be here "

Sorry it spilled over to kenmac. I just want to go through whatever I can to fix this civilly, before I call someone in. I just want it to work both ways. I can't afford to waist money right now. I don't want this to get blown out of proportion. Again, I am sorry if I offended anyone, including Plumber101 and kenmac.
Some people do bite the newbies, and not just the newbies. That's a moderator's problem.

For the people who reflexively say "Call somebody" I say "What is your purpose on this forum?
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Old 02-27-2009, 01:09 PM   #33
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Heil furnace inducer vibrating, capcitor handling question


[QUOTE=Yoyizit;237720]
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Originally Posted by diggerdave View Post
Some people do bite the newbies, and not just the newbies. That's a moderator's problem.

For the people who reflexively say "Call somebody" I say "What is your purpose on this forum?
If that's an apology....accpted

I'll say this, sometimes you can have multiple problems that can be hard to figure out on a fourm.also, if you have a cracked heat exchanger. It can be fatal !! I'am sure no one here wants to hear of anyone getting hurt..I'll give another suggestion. Jump out your vaccum switch & see if the unit stays on.

Last edited by kenmac; 02-27-2009 at 01:26 PM.
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Old 02-27-2009, 01:56 PM   #34
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Heil furnace inducer vibrating, capcitor handling question


[quote=kenmac;237750]
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If that's an apology....accpted

I'll say this, sometimes you can have multiple problems that can be hard to figure out on a fourm.also, if you have a cracked heat exchanger. It can be fatal !! I'am sure no one here wants to hear of anyone getting hurt..I'll give another suggestion. Jump out your vaccum switch & see if the unit stays on.
spell checker please!
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Old 02-27-2009, 02:23 PM   #35
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What I need to do is stop posting on this black berry or, read b-4 I sumit. This new bb is hard to operate..or could b the operator. I have yet to figure out how to post one of the smilies

Last edited by kenmac; 02-27-2009 at 02:28 PM.
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Old 02-27-2009, 02:47 PM   #36
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Originally Posted by Yoyizit View Post
Some people do bite the newbies, and not just the newbies. That's a moderator's problem.

For the people who reflexively say "Call somebody" I say "What is your purpose on this forum?
Quote:
Originally Posted by kenmac View Post

If that's an apology....accpted

I'll say this, sometimes you can have multiple problems that can be hard to figure out on a fourm.also, if you have a cracked heat exchanger. It can be fatal !! I'am sure no one here wants to hear of anyone getting hurt..I'll give another suggestion. Jump out your vaccum switch & see if the unit stays on.
Somehow I got taged with Yoyizit's quote there. Wierd, but anyway, I did apologize. Yeah I know it can be difficult to troubleshoot online rather than being in front of the problem. I do that a lot too. I am aware how dangerous a cracked heat exchanger can be. We have not had any sysmptoms, and I believe this cycling problem may have been going on longer than I was aware of. I have new CO2 detecters, a few months old, in the house as well. Not as accurate as the gas co, but they should let us konw if we reach unsafe levels.

Ok, I'm affaid to ask,,,,, Just trying to lighten the mood... I have a "air proving switch" with a vacume line down to the combustion air blower. I'm sure that's what you're talking about, right? To "jump out", do you want me to disconnect the air proving switch electrical leads and jump them, or disconnect the the vacume line? Also do I jump before the furnace starts up? Picture below

Also I noticed the fan limit switch settings look like they're set to 95, 130, 175 degrees. (The max designed output on the sevice tag says 165) I was cycling at 130-140 and 150-158. Look fishy to you - like you said the swich can start to cycle at lower temps? Picture below
THANK YOU
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Last edited by diggerdave; 02-27-2009 at 03:01 PM.
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Old 02-27-2009, 03:06 PM   #37
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Would anyone object to moving the last post by kenmac and my reply to my other thread, short on/off cycle times for burner/inducer ? There are more posts there dealing with the cycling isssue. Sorry I didn't think they were related when I started them....
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Old 02-27-2009, 03:37 PM   #38
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That limit looks awful yellow...Back draft or roll out?
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Old 02-27-2009, 05:32 PM   #39
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That limit looks awful yellow...Back draft or roll out?

I have seen some of the older ones that color
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Old 02-27-2009, 05:47 PM   #40
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Diggerdave, when the unit is on & you are watching that limit. Does the limit rotate all the way around ( to the 195 or 200 mark) & turn the burners off while the blower & vent motor remain on ?? I had a ruud do this once.Replaced the limit. Same results. Air flow was fine. I had to adjust that limit a little off that 200 mark & all was fine after that .These things work with a coil type spring so, over time I,am sure thet get out of adjustment.. The vaccum switch is the silver part which you won't need to jump out if the above is happening
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Old 03-01-2009, 12:16 AM   #41
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Diggerdave, when the unit is on & you are watching that limit. Does the limit rotate all the way around ( to the 195 or 200 mark) & turn the burners off while the blower & vent motor remain on ?? I had a ruud do this once.Replaced the limit. Same results. Air flow was fine. I had to adjust that limit a little off that 200 mark & all was fine after that .These things work with a coil type spring so, over time I,am sure thet get out of adjustment.. The vaccum switch is the silver part which you won't need to jump out if the above is happening
No it actually gets to about 160 then jumps to 185 and shuts the burners and vent blower off. Main blower still running. Here is a short video up on youtube http://www.youtube.com/watch?v=-D969TvkjPw

Fan Limit Switch Dial Settings:
90 Everything off
90 Vent blower starts, valve opens, burners fire within 1-2 seconds, dial starts to turn CW
135-140 Main blower starts
<begin repeat - 6 or 7 times>
160 Dial jumps from 160 to 185, shuts burners AND vent blower off, main blower continues to run
As the exchanger cools the dial begins to turn CCW
145-150 Vent blower starts, valve opens, burners fire within 1-2 seconds, dial starts to turn CW
<end repeat>
95-100 Main blower shuts off

Do you want me to jump the vacuum switch then? Jump the wire leads together correct while the furnace is on?
Thanks
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Old 03-01-2009, 12:47 AM   #42
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That limit looks awful yellow...Back draft or roll out?
Woops, I misspoke before when I said the flame flash was comming out of the burner tubes in front where you adjust the air fuel mix.... actually 1-2 seconds after the valve opens the burners startup and that's when I get a little bit of flame comming out of the exchanger under the burner cover/shield.I think it's a rollout at startup. Heres a video up on youtube - I'm not sure if this is ok http://www.youtube.com/watch?v=rWqGlRD2hWY

Thanks

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Old 03-01-2009, 08:49 AM   #43
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No. That furnace might have a hole in the exchanger.
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Old 03-01-2009, 09:02 AM   #44
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Heil furnace inducer vibrating, capcitor handling question


Remove the "Thanks" from the link and it will work. Looks dangerous to me. Should not be flashing back like that. The burner may be overfired and that is causing all the problems. Need to get a tech in with a manometer and some experience to check it. Try your local gas utility, maybe they will do a free pressure test. If it gets worse you may have a small explosion and burnt wiring etc. At this point in time I would not compromise your families safety by trying to DIY. Gas valves DO NOT go out of calibration/need adjusting for no reason. YOU have to live in that house and not some anonymous internet DIYers.

Last edited by yuri; 03-01-2009 at 09:21 AM.
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Old 03-01-2009, 11:41 AM   #45
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Ok I'll have it checked.

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