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[GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193442]

Thu, 20 December 2012 14:21

Grant Leonard

Messages: 3
Registered: April 2011

Karma: 0

Junior Member

I replaced the 3 12 volt batteries and now have no power to level the
coach. Any suggestions will be greatly appreciated.

Thanks Grant Leonard 954 696 1512
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Re: [GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193443 is a reply to message #193442]

Thu, 20 December 2012 14:50

Mr ERFisher

Messages: 7117
Registered: August 2005

Karma: 2

Senior Member

you might try reading this
http://gmcmotorhome.info/batt.htm#101

gene

On Thu, Dec 20, 2012 at 12:21 PM, Grant Leonard <granty843@gmail.com> wrote:

> I replaced the 3 12 volt batteries and now have no power to level the
> coach. Any suggestions will be greatly appreciated.
>
> Thanks Grant Leonard 954 696 1512
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

--
Gene Fisher -- 74-23,77PB/ore/ca
�Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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Re: [GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193445 is a reply to message #193442]

Thu, 20 December 2012 15:16

Carl S.

Messages: 4186
Registered: January 2009
Location: Tucson, AZ.

Karma: 13

Senior Member

Grant,

If all those things worked correctly before you replaced the batteries, they should work better afterwards. Start by double checking all your connections. Assuming the house battery bank consists of two 12 volt batteries, make sure they are hooked up in parallel, NOT series. Also, make sure your battery disconnect switches, if so equipped, are turned back on. Hopefully the problem will be as simple as that to fix. Good luck.

Carl Stouffer '75 ex Palm Beach Tucson, AZ. Chuck Aulgur Reaction Arm Disc Brakes, Quadrabags, 3.70 LSD final drive, Lenzi knuckles/hubs, Dodge Truck 16" X 8" front wheels, Rear American Eagles, Solar battery charging. GMCSJ and GMCMI member

[Updated on: Thu, 20 December 2012 15:16]

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Re: [GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193446 is a reply to message #193445]

Thu, 20 December 2012 15:32

Kingsley Coach

Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada

Karma: -34

Senior Member

Grant

This is a perfect example of how it helps to know what you own. Is it a
factory finished GMC or finished by someone else?
The electrics are different.

Mike in NS

On Thu, Dec 20, 2012 at 5:16 PM, Carl Stouffer <carljr3b@yahoo.com> wrote:

>
>
> Grant,
>
> If all those things worked correctly before you replaced the batteries,
> they should work better afterwards. Start be double checking all your
> connections. Assuming the house battery bank consists of two 12 volt
> batteries, make sure they are hooked up in parallel, NOT series. Also,
> make sure your battery disconnect switches, if so equipped, are turned back
> on. Hopefully the problem will be as simple as that to fix. Good luck.
> --
> Carl S.
> '75 ex Palm Beach
> Tucson, AZ.
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>

--
Michael Beaton
1977 Kingsley 26-11
1977 Eleganza II 26-3
Antigonish, NS
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Re: [GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193448 is a reply to message #193442]

Thu, 20 December 2012 15:50

James Hupy

Messages: 6806
Registered: May 2010

Karma: -62

Senior Member

Grant, does the possibility exist that you might have reversed the polarity
of the batteries, even for a brief moment? I am not accusing you of that,
but if that did happen by accident, it is likely that fuses or circuit
breaker in the case of the ride height compressor(s) may have been burned
out in the process. Power for the compressors on some coaches is a large
circuit breaker located kinda crosswise in the top of the fuse block behind
the glove compartment. The compressors do not usually operate unless the
ignition key is either in the "on" or "acc " position.
Jim Hupy
Salem, Or
78 Gmc Royale 403
On Dec 20, 2012 12:21 PM, "Grant Leonard" <granty843@gmail.com> wrote:

> I replaced the 3 12 volt batteries and now have no power to level the
> coach. Any suggestions will be greatly appreciated.
>
> Thanks Grant Leonard 954 696 1512
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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Re: [GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193476 is a reply to message #193442]

Thu, 20 December 2012 18:55

Matt Colie

Messages: 8547
Registered: March 2007
Location: S.E. Michigan

Karma: 7

Senior Member

For those that might assist,
Grant has a 77 Birchhaven (23) and lives in Florida in the Pampano Beach area (by the ph nr from his first post).

Given it is a Birch with the batteries up front, I can think of more than a few places it could go wrong, but I am not a Birch owner, so I hope someone that knows them better and is closer can be more help.

Matt

Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit

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Re: [GMCnet] no power to water pump, leveling compressor or onan - Help! [message #193479 is a reply to message #193442]

Thu, 20 December 2012 19:52

mike miller

Messages: 3576
Registered: February 2004
Location: Hillsboro, Oregon

Karma: 0

Senior Member

Grant Leonard wrote on Thu, 20 December 2012 12:21

I replaced the 3 12 volt batteries and now have no power to level the
coach. Any suggestions will be greatly appreciated.

Thanks Grant Leonard 954 696 1512

Something odd...

Normally, the leveling system and the Onan are powered by different systems.

I understand you have a 1977 Birchaven. As such, I am Ass-U-me'n that you have all 3 batteries up front. You say "3 12v batteries," as you coach started with only 2, how are they set-up? Do you have a single engine starting battery and a pair of 12v batteries for the house? I have seen older rear bath Birch's with one battery in the closet over the Onan, does yours?

I also am Ass-U-Me'n that the engine starts and runs and the only things not working are the Onan and Leveling system.

A '77 should have the first type of Electro-level (with one air compressor pump) and is powered from the ENGINE battery... at least as set-up from the factory. But some have changed the compressor power to a "stiff" power source and could have been connected to the house battery. (A high gauge connection to the house battery is already fairly close to the compressor.)

BUT....

Without more information, I would suspect a connection problem. Most likely something to do with grounds.

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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