GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] Rear Fantasic Fan install -- Wiring location?
[GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256270] Wed, 23 July 2014 15:30 Go to next message
John Olson is currently offline  John Olson   United States
Messages: 96
Registered: August 2013
Karma: 0
Member
I've heard the factory installed 12v and 110 wiring in rear ceiling wafers
even if an AC/Fan wasn't initially installed.

Hole is now cut in rear area of roof and ceiling panels for a new Fantastic
Fan. No wiring stub to be found there.

Edgemonte was the "defeatured" version from GMC iirc, so maybe such wiring
wasn't run to that rear fan area?

I'm ok with running a new positive wire down, and grounding the fantastic
fan to roof rails in that area if thats what it takes on our Edgemonte.
Just making sure I'm not missing the easier method.



John Olson
76 Edgemonte
Currently in Round Lake, IL
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



John Olson 76 Edgemonte Fulltime traveler
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256271 is a reply to message #256270] Wed, 23 July 2014 16:13 Go to previous messageGo to next message
emerystora is currently offline  emerystora   United States
Messages: 4442
Registered: January 2004
Karma: 13
Senior Member
Look around under the ceiling panels. Probably on the drivers side coming from the front.
GM did put a wire for that area and it should be in your 1976 Edgemont as well.

Emery Stora

On Jul 23, 2014, at 2:30 PM, John Olson wrote:

> I've heard the factory installed 12v and 110 wiring in rear ceiling wafers
> even if an AC/Fan wasn't initially installed.
>
> Hole is now cut in rear area of roof and ceiling panels for a new Fantastic
> Fan. No wiring stub to be found there.
>
> Edgemonte was the "defeatured" version from GMC iirc, so maybe such wiring
> wasn't run to that rear fan area?
>
> I'm ok with running a new positive wire down, and grounding the fantastic
> fan to roof rails in that area if thats what it takes on our Edgemonte.
> Just making sure I'm not missing the easier method.
>
>
>
> John Olson
> 76 Edgemonte
> Currently in Round Lake, IL
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256272 is a reply to message #256270] Wed, 23 July 2014 16:18 Go to previous messageGo to next message
Michael Johnson is currently offline  Michael Johnson   United States
Messages: 62
Registered: January 2013
Karma: 0
Member
I just instilled a maxx turbo vent fan over the front vent. Wool there be
power there for that hatch as well?

Michael Johnson. 1976 ,Edgemont
On Jul 23, 2014 3:13 PM, "Emery Stora" wrote:

> Look around under the ceiling panels. Probably on the drivers side coming
> from the front.
> GM did put a wire for that area and it should be in your 1976 Edgemont as
> well.
>
> Emery Stora
>
> On Jul 23, 2014, at 2:30 PM, John Olson wrote:
>
>> I've heard the factory installed 12v and 110 wiring in rear ceiling
> wafers
>> even if an AC/Fan wasn't initially installed.
>>
>> Hole is now cut in rear area of roof and ceiling panels for a new
> Fantastic
>> Fan. No wiring stub to be found there.
>>
>> Edgemonte was the "defeatured" version from GMC iirc, so maybe such
> wiring
>> wasn't run to that rear fan area?
>>
>> I'm ok with running a new positive wire down, and grounding the fantastic
>> fan to roof rails in that area if thats what it takes on our Edgemonte.
>> Just making sure I'm not missing the easier method.
>>
>>
>>
>> John Olson
>> 76 Edgemonte
>> Currently in Round Lake, IL
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist

Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256277 is a reply to message #256272] Wed, 23 July 2014 16:35 Go to previous messageGo to next message
jtblank is currently offline  jtblank   United States
Messages: 237
Registered: June 2007
Location: Tulare, CA
Karma: 1
Senior Member
Here's a pic from my Palm Beach when I re-insulated and replaced the headliner.
http://www.gmcmhphotos.com/photos/headliner/p38051-2011-03-20-17-59-55-636.html

The factory wire is in a flex conduit and runs in the roof spar, could be covered in foam.





John Blankenship '76 Palm Beach Tulare, CA
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256301 is a reply to message #256277] Wed, 23 July 2014 19:40 Go to previous messageGo to next message
John Olson is currently offline  John Olson   United States
Messages: 96
Registered: August 2013
Karma: 0
Member
Thanks for the help gents. No luck thus far finding wiring in the rear fan
area. Flexed the panels down and peeked around for a wire or flex conduit.
Couldn't see any runs definitively upward thru rails either.

I'll need to at least somewhat drop the ceiling panel tomorrow in order to
run a wire to the fuse panel in the bathroom. That should give a more
complete look at the situation and reveal any wires hidden from view.

Doubting that any fan type wiring was run at all on Edgemonte
models...front or rear. In checking the fuse assignments, I discovered that
the PO-installed front vent fan is fused to #4. No fans listed in the 12v
panel assignments.

Book says #4 fuse has Fridge 6.0A, Hall Light 2.88A, Right Front Light
2.88A, Total 11.76A. Pulled the fuse and those items went off (good) AND
the front vent fan went off too (hmmm...ok or bad). Adding the Fan's 1.9A
brings the total to 13.66A on the 15A fuse.



John Olson
76 Edgemonte


On Wed, Jul 23, 2014 at 4:35 PM, John Blankenship
wrote:

> Here's a pic from my Palm Beach when I re-insulated and replaced the
> headliner.
>
> http://www.gmcmhphotos.com/photos/headliner/p38051-2011-03-20-17-59-55-636.html
>
> The factory wire is in a flex conduit and runs in the roof spar, could be
> covered in foam.
>
>
>
>
> --
> John Blankenship
> '76 Palm Beach
> Tulare, CA
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



John Olson 76 Edgemonte Fulltime traveler
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256321 is a reply to message #256270] Wed, 23 July 2014 21:34 Go to previous messageGo to next message
WD0AFQ is currently offline  WD0AFQ   United States
Messages: 7111
Registered: November 2004
Location: Dexter, Mo.
Karma: 207
Senior Member
Fantastic did my install in bath and bedroom. Used a coat hanger and ran wires over to lighting wires on passenger side.
Dan


3 In Stainless Exhaust Headers One Ton All Discs/Reaction Arm 355 FD/Quad Bag/Alum Radiator Manny Tran/New eng. Holley EFI/10 Tire Air Monitoring System Solarized Coach/Upgraded Windows Satelite TV/On Demand Hot Water/3Way Refer
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256364 is a reply to message #256270] Thu, 24 July 2014 09:58 Go to previous messageGo to next message
Larry is currently offline  Larry   United States
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
Senior Member
I removed my rear AC and replaced it with a Fantastic Fan. A satisfying upgrade. There were no 12ga wires there for the fan so I used the 10ga 120v house wiring for the 12v install. Way overkill but it works. My point here is that maybe you want to run some 10ga home wire up there in case at some time in the future you change your mind and want a roof AC in that spot. Just something to think about...

Larry Smile
78 Royale w/500 Caddy
Menomonie, WI.
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256370 is a reply to message #256364] Thu, 24 July 2014 10:46 Go to previous messageGo to next message
Loffen is currently offline  Loffen   Norway
Messages: 1087
Registered: August 2013
Location: Norway
Karma: 1
Senior Member
I found my wiring after a lot of hassle in the "wire gate" behind the rear left cabinet and partial behind the closet, you will have to take the cabinet out and the try to get the plastic cover/strip out, as I said a hassle, on mine they did also use strip ties that where impossible to reach with a plyer, had to heat up a screwdriver and melt them of.

I will check and see if I have a picture of it.


1973 23' # 1848 Sky Blue Glacier called Baby Blue and a 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Green, And sold my 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel in Norway

[Updated on: Thu, 24 July 2014 10:51]

Report message to a moderator

Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256372 is a reply to message #256370] Thu, 24 July 2014 11:07 Go to previous messageGo to next message
Loffen is currently offline  Loffen   Norway
Messages: 1087
Registered: August 2013
Location: Norway
Karma: 1
Senior Member
Yes, This was on DT, it had rear AC and a non power vent in the bathroom, both wires was at the same location behind the cabinet.

1973 23' # 1848 Sky Blue Glacier called Baby Blue and a 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Green, And sold my 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel in Norway
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256373 is a reply to message #256370] Thu, 24 July 2014 11:04 Go to previous messageGo to next message
Kingsley Coach is currently offline  Kingsley Coach   United States
Messages: 2691
Registered: March 2009
Location: Nova Scotia Canada
Karma: -34
Senior Member
"... had to heat up a screwdriver and melt them off." Good move!!!

Mike


On Thu, Jul 24, 2014 at 12:47 PM, Espen Heitmann wrote:

> I found my wiring after a lot of hassle in the "wire gate" behind the rear
> left cabinet and partial behind the closet, you will have to take the
> cabinet out and the try to get the plastic cover/strip out, as I said a
> hassle, on mine they did also use strip ties that where impossible to reach
> with a plyer, had to heat up a screwdriver and melt them of.
>
> I will ceck and see if I have a picture of it.
> --
> 1973 26'-3 # 1460 Parrot green Seqouia Known as the Big Mean Green Machine
> And A 1973 26'-2 # 581 White Canyon lands under the name Dobbelt trøbbel
> in Norway
>
> _______________________________________________
> 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

* This is my second trip through the 60's; the first time the drugs were
better !
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
Re: [GMCnet] Rear Fantasic Fan install -- Wiring location? [message #256421 is a reply to message #256372] Thu, 24 July 2014 19:42 Go to previous message
John Olson is currently offline  John Olson   United States
Messages: 96
Registered: August 2013
Karma: 0
Member
Wrap up. I ended up snaking a fish tape and splicing into the LH Rear Light
power wire. Easier than taking down cabinet, headliner, then snaking over
to bathroom. Grounded to a roof rail next to the FFan.

Added 4 wood blocks inside ceiling wafers, screwed in place with FF
mounting pattern, located on inner shroud's corners. Screwed the inner
plastic shroud insert to these 4 wood blocks so the headliner wouldn't sag
over time.

My thanks to everyone for their help.

John Olson
76 Edgemonte
Currently in Round Lake, IL.
_______________________________________________
GMCnet mailing list
Unsubscribe or Change List Options:
http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist



John Olson 76 Edgemonte Fulltime traveler
Previous Topic: Brisk air duo-therm
Next Topic: Someone visiting Newport, Oregon today?
Goto Forum:
  


Current Time: Mon Sep 23 12:27:18 CDT 2024

Total time taken to generate the page: 0.01714 seconds