| Furnace Encouragement with one question..... [message #151270] |
Thu, 01 December 2011 22:57  |
RadioActiveGMC
Messages: 1020
Registered: November 2010
Location: Hot AZ desert
Karma: 0
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I have a Suburban heater that was giving me fits. I know a lot of you are experts unlike me. But I wanted to encourage any newbies to give stuff a try before paying a ton at a repair shop.
Before that I was hoping someone would tell me how much gap is there supposed to be on the spark electrode?
Last year my Suburban Heater wasn't working it always blew cold air. Only every so often would fire up. So I took it all apart at the encouragement of this forum. I replaced a sail switch which before this I had no clue what it even did. Then I found a ton of wasp hive in the heater causing the heater to have fits. I ran #8 power wire to the unit so it would avoid voltage loss as well. Seemed to solve things.
But once again my first camping trip in the GMC (didn't use the RV for awhile trying to figure out issues with drive quality) the unit turned on heated then shut off early. Then would turn on cycle and blow cold air forever. What a bummer when its cold and the kids are asleep.
Well today I invested in a dinosaur board for it, and replaced the high limit switch. Tested it many times today and fired up and satisfied at the right temp! Looking good.
I was pretty proud to pay only for parts and not someones super high labor rate to get her going. Took a few times, but I know a lot more about the furnace now then I ever did before. If your a newbie, take time, use common sense, ask questions, and its really satisfying getting the GMCs systems up and all running the way they should.
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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| Re: [GMCnet] Furnace Encouragement with one question..... [message #151370 is a reply to message #151365] |
Fri, 02 December 2011 19:46  |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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That reminds me: Yesterday I was reading the owner's manual for HER Lexus.
In the "Owner Maintenance" section (VERY thin), there's a comment to be
careful around the headlights because "...when first turned on, up to
20,000 volts will be present...". WHAT???
Where, why, how, did they come up with that? HEI in the headlights?
Ken H.
On Fri, Dec 2, 2011 at 8:40 PM, Don Adams wrote:
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>
>
> hmmm HEI in the furnance
>
> --
>
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Ken Henderson
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www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Furnace Encouragement with one question..... [message #151372 is a reply to message #151370] |
Fri, 02 December 2011 19:53 |
k2gkk
Messages: 4452
Registered: November 2009
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Probably because they are HID (High Intensity Discharge) lights.
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
~~ ~ D C "Mac" Macdonald ~ ~~
~ ~ Amateur Radio - K2GKK ~ ~
~ ~ USAF and FAA, Retired ~ ~
~ ~ ~ Oklahoma City, OK ~ ~ ~
~~ ~ ~ "The Money Pit" ~ ~ ~~
~ ~ ~ ex-Palm Beach, 76 ~ ~ ~
~ www.gmcmhphotos.com/okclb ~
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
> From: hend4800@bellsouth.net
> Date: Fri, 2 Dec 2011 20:46:40 -0500
> To: gmclist@temp.gmcnet.org
> Subject: Re: [GMCnet] Furnace Encouragement with one question.....
>
> That reminds me: Yesterday I was reading the owner's manual for HER Lexus.
> In the "Owner Maintenance" section (VERY thin), there's a comment to be
> careful around the headlights because "...when first turned on, up to
> 20,000 volts will be present...". WHAT???
>
> Where, why, how, did they come up with that? HEI in the headlights?
>
> Ken H.
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| Re: [GMCnet] Furnace Encouragement with one question..... [message #151376 is a reply to message #151372] |
Fri, 02 December 2011 20:08 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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If you say so...I've paid absolutely no attention to all the newfangled
lighting developments over the past 10 years, so I had no idea they
required >12 VDC. :-(
Ken H.
On Fri, Dec 2, 2011 at 8:53 PM, D C *Mac* Macdonald wrote:
>
> Probably because they are HID (High Intensity Discharge) lights.
>
> > That reminds me: Yesterday I was reading the owner's manual for HER
> Lexus.
> > In the "Owner Maintenance" section (VERY thin), there's a comment to be
> > careful around the headlights because "...when first turned on, up to
> > 20,000 volts will be present...". WHAT???
> >
> > Where, why, how, did they come up with that? HEI in the headlights?
>
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Furnace Encouragement with one question..... [message #151382 is a reply to message #151376] |
Fri, 02 December 2011 21:08 |
Bob de Kruyff
Messages: 4260
Registered: January 2004
Location: Chandler, AZ
Karma: 1
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| Ken Henderson wrote on Fri, 02 December 2011 19:08 |
If you say so...I've paid absolutely no attention to all the newfangled
lighting developments over the past 10 years, so I had no idea they
required >12 VDC. 
Ken H.
On Fri, Dec 2, 2011 at 8:53 PM, D C *Mac* Macdonald wrote:
>
> Probably because they are HID (High Intensity Discharge) lights.
>
> > That reminds me: Yesterday I was reading the owner's manual for HER
> Lexus.
> > In the "Owner Maintenance" section (VERY thin), there's a comment to be
> > careful around the headlights because "...when first turned on, up to
> > 20,000 volts will be present...". WHAT???
> >
> > Where, why, how, did they come up with that? HEI in the headlights?
>
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That's why it is her car Ken--get with the program 
Bob de Kruyff
78 Eleganza
Chandler, AZ
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| Re: Furnace Encouragement with one question..... [message #151403 is a reply to message #151378] |
Fri, 02 December 2011 23:21 |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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| Mr.RadioActive wrote on Fri, 02 December 2011 20:49 |
So anyone know how much gap there is supposed to be or does it really not matter to much?
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First, I do not really know the spec.
If it works then it should be OK. If it does not work reliably then make it a little closer. There is no reason for it to change unless some messed with it. I'm thinking anything over .015" should work.
It doesn't fire often enough for it to wear and widen the gap.
Now, if you have the HEI version ........
I just couldn't resist the temptation.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
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| Re: Furnace Encouragement with one question..... [message #151464 is a reply to message #151270] |
Sat, 03 December 2011 17:49 |
RadioActiveGMC
Messages: 1020
Registered: November 2010
Location: Hot AZ desert
Karma: 0
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Senior Member |
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I got the answer from a broken part of the thread which was 1/8" which I appreciated. I had to change mine since it was cracked at the base. I replaced the control board to a dinosaur board, the sail switch, high limit, and then I just didn't know if there was any correct setting for the spark gap.
***"Gettin There"-1973 23' Sequoia-
Michael, Onans smell, "Go solar/wind power!"
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