| Electro level II [message #283190] |
Sun, 26 July 2015 09:54  |
Smitty52
Messages: 181
Registered: July 2007
Karma: 0
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For someone who is intimidated by a wiring diagram is there an easy to understand troubleshooting/test to dtermine why the right side won't air up? Somewhere in the system I believe the solenoid is not kicking in. I am looking through my binders of info to see if I have anything to work from in the manuals but am wondering if there is an "Electro level for dummies" post out there somewhere. I have sold the coach and want to get it all set for the new owner and now it decides not to air up. Compressor is at 90lbs and the left side is fine. Thanks
Wayne and Lisa,
Bolton Landing, NY,
Patriot Guard Rider,
Standing for those who stood for us.
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| Re: Electro level II [message #283265 is a reply to message #283190] |
Mon, 27 July 2015 09:27  |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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Does the manual raise switch do anything? If it does then your right compressor is good. Might be height sensor on that side. EL II is simpler than the EL I I have but the sensors can be an issue I have heard.
John Lebetski
Woodstock, IL
77 Eleganza II
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| Re: [GMCnet] Electro level II [message #283301 is a reply to message #283292] |
Mon, 27 July 2015 14:53 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Wayne,
If you check the wiring diagram, you should find that the Raise solenoid is
powered through a Light Blue with Double Black Stripe wire. However,
there's also the Hold (Raise/Lower) solenoid to be concerned about: It's
powered, during either Raise or Lower, through a Pink with Double Black
Stripe wire. If Lower works OK, the Hold solenoid should be OK.
You can also test the solenoids by disconnecting the listed wires and
applying 12 VDC directly to the solenoid, but without the Hold solenoid
activated at the same time, no air should flow.
HTH,
Ken H.
On Mon, Jul 27, 2015 at 1:45 PM, Wayne E LaMothe
wrote:
> It appears that even though it is a 78 it has the electro level I system.
> The right side switch goes to a ground when pressed. If I knew which
> solenoid it went to I would unplug it and see if it still grounds out.
> Then it would be the switch or wire issue. If it does not ground out then I
> would think it is an issue with the solenoid.
>
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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] Electro level II [message #283303 is a reply to message #283292] |
Mon, 27 July 2015 14:58 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Wayne,
I am reposting the manual so other can take advantage of it information. The solenoid layout and wiring are all in the document.
http://www.bdub.net/manuals/Electro-Level.pdf
JR Wright
GMC Great Laker MHC
GMC Eastern States
GMCGL Tech Editor
GMCMHI
78 GMC Buskirk 30’ Stretch
1975 GMC Avion (Under Reconstruction)
Michigan
> On Jul 27, 2015, at 1:45 PM, Wayne E LaMothe wrote:
>
> It appears that even though it is a 78 it has the electro level I system. The right side switch goes to a ground when pressed. If I knew which
> solenoid it went to I would unplug it and see if it still grounds out. Then it would be the switch or wire issue. If it does not ground out then I
> would think it is an issue with the solenoid.
>
>
>
>
>
> --
> Wayne and Lisa,
> Bolton Landing, NY,
>
> Big Blue Bus AKA Triple B, 78 Royale center kitchen,
>
> Patriot Guard Rider,
> Standing for those who stood for us.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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GMCnet mailing list
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: [GMCnet] Electro level II [message #283304 is a reply to message #283292] |
Mon, 27 July 2015 15:08 |
emerystora
Messages: 4442
Registered: January 2004
Karma: 13
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Senior Member |
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Wayne
It is common for the swithes to accumulate dirt inside which stops them from making contact.
It is easy to open the switch to clean out the dirt and lint.
Use some spray contact cleaner to clean and lubricate them when reassembling them.
I have cleaned mine and some other GMCer’s motorhomes to solve problems.
Emery Stora
77 Kingsley
Frederick, CO
> On Jul 27, 2015, at 11:45 AM, Wayne E LaMothe wrote:
>
> It appears that even though it is a 78 it has the electro level I system. The right side switch goes to a ground when pressed. If I knew which
> solenoid it went to I would unplug it and see if it still grounds out. Then it would be the switch or wire issue. If it does not ground out then I
> would think it is an issue with the solenoid.
>
>
>
>
>
> --
> Wayne and Lisa,
> Bolton Landing, NY,
>
> Big Blue Bus AKA Triple B, 78 Royale center kitchen,
>
> Patriot Guard Rider,
> Standing for those who stood for us.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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| Re: Electro level II [message #283564 is a reply to message #283190] |
Thu, 30 July 2015 19:04 |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
Karma: 12
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Senior Member |
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I'm with Emery on this one. Use a jewelers driver to open the switch and don't loose spring and follower. They have real contact points inside that get coated with the broken down protectve foam dust sheet that has long degraded to goo. Some dielectric grease keeps it working smoothly. This fixed my no down on passenger side. Check continuity with Ohm meter before reinstalling. I think they are DPDT.
John Lebetski
Woodstock, IL
77 Eleganza II
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