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Water Heater : Only Works with Door Open !! [message #189136] Sun, 04 November 2012 00:48 Go to next message
SteveW is currently offline  SteveW   United States
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Registered: June 2005
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Well.. here's an interesting one:

My water heater won't fire up. It tries - but only stays on for 5, maybe 10 seconds. A subsequent attempt might stay on for 15 seconds...

So while troubleshooting - it fires up just fine when the door is open. Close the door and it shuts down within 5 or 10 seconds.

Sure sound like some kind of air flow issue to me...

Advice ??

Thanks,
Steve W
1973 23' Yellow!

Steve W 1973 : 23' Southern California

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Re: Water Heater : Only Works with Door Open !! [message #189137 is a reply to message #189136] Sun, 04 November 2012 01:03 Go to previous messageGo to next message
RadioActiveGMC is currently offline  RadioActiveGMC   United States
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My furnace acted like that. Ended up replacing the board with a dinosaur board. Replaced a few switches and cleaned it out worked perfect after ward. Right after I rebuilt it now I don't need it!

***"Gettin There"-1973 23' Sequoia- Michael, Onans smell, "Go solar/wind power!"

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Re: Water Heater : Only Works with Door Open !! [message #189142 is a reply to message #189136] Sun, 04 November 2012 04:36 Go to previous messageGo to next message
mike miller   United States
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Registered: February 2004
Location: Hillsboro, Oregon
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SteveW wrote on Sat, 03 November 2012 22:48

Well.. here's an interesting one:

My water heater won't fire up. ...

...
Advice ??

Thanks,
Steve W
1973 23' Yellow!


More of an information than advice, GM upfitted coaches (and ALL 1973/1974's were GM upfitted) came with an electric water heater with optional engine assist.

It sounds like you are asking about a GAS powered water heater. So, you'll need to say what brand and model water heater. As I expect it to be something a PO added.

Mike Miller -- Hillsboro, OR -- on the Black list
(#2)`78 23' Birchaven Rear Bath -- (#3)`77 23' Birchaven Side Bath
More Sidekicks than GMC's and a late model Malibu called 'Boo' http://m000035.blogspot.com

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Re: Water Heater : Only Works with Door Open !! [message #189149 is a reply to message #189136] Sun, 04 November 2012 09:10 Go to previous messageGo to next message
JShot is currently offline  JShot   United States
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Registered: October 2006
Location: NW Ohio
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Steve,
Welcome to the group! Thought I'd try to catch you here as your 1st post is fading. When you get a chance, please go to the GMC Registry web site and send me the pertinent info on your coach. You can use the on-line form there.

http://gmcmhregistry.com/index.html

Thanks,
John

John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen

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Re: Water Heater : Only Works with Door Open !! [message #189154 is a reply to message #189136] Sun, 04 November 2012 09:35 Go to previous messageGo to next message
SteveW is currently offline  SteveW   United States
Messages: 538
Registered: June 2005
Location: Southern California - Ora...
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Registration is on the boards for today...

And yes - it sure seems to be an added water heater.

It protrudes from the body just a bit (I'll post pics later) and someone fabricated a housing that blends in pretty good. And I find no electrical element or engine driven heat exchanger. There is a 110V water heater switch next to the buzz box though.

To be continued,
SW

Steve W 1973 : 23' Southern California

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Re: Water Heater : Only Works with Door Open !! [message #189156 is a reply to message #189136] Sun, 04 November 2012 10:17 Go to previous message
JohnL455 is currently offline  JohnL455   United States
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Registered: October 2006
Location: Woodstock, IL
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The switch by the buzzz is OEM. GM was 120v and engine coolant loop only. Nothing to "fire" up.

John Lebetski
Woodstock, IL
77 Eleganza II

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