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| [GMCnet] question about heat [message #122844] |
Fri, 22 April 2011 22:27  |
Lissa Caltrider
Messages: 11
Registered: August 2010
Karma: 0
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Junior Member |
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We bought our GMC MC last summer and have yet to enjoy any time in it. We
have it back from a winter-long stay at Charlie's Campers in Randallstown,
MD where it got a new awning and some other TLC. Right now, we don't have a
kitchen in our immobile home as it is being given a much-needed facelift ,
so we are planning to use the coach's kitchen to hardboil Easter eggs.
Sadly, it is 40 here in the Baltimore area and that's too cold for me. So,
I turned the engine on and cranked up the heat. Or so I thought. After 30
minutes the coach was still 40. I read the User Manual, but still can't
decide if I've done something wrong or detected another needed repair. I
hear a system working, but no air blows out of any of the vents. Up front,
or at toe level.....anyone have any thoughts for me???
Lissa
Lissa Caltrider
410-833-3790 H
410-963-7673 C
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| Re: [GMCnet] question about heat [message #122846 is a reply to message #122844] |
Fri, 22 April 2011 22:50  |
C Boyd
Messages: 2629
Registered: April 2006
Karma: 18
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| Lissa Caltrider wrote on Fri, 22 April 2011 23:27 |
We bought our GMC MC last summer and have yet to enjoy any time in it. We
have it back from a winter-long stay at Charlie's Campers in Randallstown,
MD where it got a new awning and some other TLC. Right now, we don't have a
kitchen in our immobile home as it is being given a much-needed facelift ,
so we are planning to use the coach's kitchen to hardboil Easter eggs.
Sadly, it is 40 here in the Baltimore area and that's too cold for me. So,
I turned the engine on and cranked up the heat. Or so I thought. After 30
minutes the coach was still 40. I read the User Manual, but still can't
decide if I've done something wrong or detected another needed repair. I
hear a system working, but no air blows out of any of the vents. Up front,
or at toe level.....anyone have any thoughts for me???
Lissa
Lissa Caltrider
410-833-3790 H
410-963-7673 C
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Lissa: the blower motor is under the pass side hood. Maybe Check for a loose ground wire from the housing bolt to frame.
C. Boyd
76 Crestmont
East Tennessee
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| Re: [GMCnet] question about heat [message #122847 is a reply to message #122844] |
Fri, 22 April 2011 23:04 |
Carl S.
Messages: 4186
Registered: January 2009
Location: Tucson, AZ.
Karma: 13
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| Lissa Caltrider wrote on Fri, 22 April 2011 20:27 |
We bought our GMC MC last summer and have yet to enjoy any time in it. We
have it back from a winter-long stay at Charlie's Campers in Randallstown,
MD where it got a new awning and some other TLC. Right now, we don't have a
kitchen in our immobile home as it is being given a much-needed facelift ,
so we are planning to use the coach's kitchen to hardboil Easter eggs.
Sadly, it is 40 here in the Baltimore area and that's too cold for me. So,
I turned the engine on and cranked up the heat. Or so I thought. After 30
minutes the coach was still 40. I read the User Manual, but still can't
decide if I've done something wrong or detected another needed repair. I
hear a system working, but no air blows out of any of the vents. Up front,
or at toe level.....anyone have any thoughts for me???
Lissa
Lissa Caltrider
410-833-3790 H
410-963-7673 C
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Maybe others have had a different experience, but I have found that the engine heat system a bit lacking. I wouldn't expect it to heat up the whole coach under any circumstances. That said, you should feel some warm air coming out of the HVAC system somewhere, unless your dash control is broken. I recently had to repair mine after the center pivot pin broke. With that pin broken, the Dash HVAC control is completely ineffective.
It's hard to describe how it should feel, but the action of the levers should have sort of an even amount of resistance when you slide them back and fourth. If they just flop around, that pin is probably broken. It is a fairly easy thing to fix. I got the replacement pin from Jim K. I understand it is made by Alex Sirum GMC in Florida.
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
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| Re: [GMCnet] question about heat [message #122856 is a reply to message #122844] |
Sat, 23 April 2011 03:24 |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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here is some info about the blower for the heat from the engine
http://gmcmotorhome.info/heat.html#fan
gene
On Fri, Apr 22, 2011 at 8:27 PM, Lissa Caltrider <lissacaltrider@verizon.net
> wrote:
> We bought our GMC MC last summer and have yet to enjoy any time in it. We
> have it back from a winter-long stay at Charlie's Campers in Randallstown,
> MD where it got a new awning and some other TLC. Right now, we don't have
> a
> kitchen in our immobile home as it is being given a much-needed facelift ,
> so we are planning to use the coach's kitchen to hardboil Easter eggs.
> Sadly, it is 40 here in the Baltimore area and that's too cold for me. So,
> I turned the engine on and cranked up the heat. Or so I thought. After 30
> minutes the coach was still 40. I read the User Manual, but still can't
> decide if I've done something wrong or detected another needed repair. I
> hear a system working, but no air blows out of any of the vents. Up front,
> or at toe level.....anyone have any thoughts for me???
>
>
>
> Lissa
>
>
>
> Lissa Caltrider
>
> 410-833-3790 H
>
> 410-963-7673 C
>
>
>
> _______________________________________________
> 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] question about heat [message #122881 is a reply to message #122856] |
Sat, 23 April 2011 10:33 |
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Let's troubleshoot this a bit.
First question - do you hear a fan running?
Second question - if yes, does it change speeds when you select the
different levels?
Assuming that the fan is working and it is blowing something somewhere, the
next step is to determine the where.
Third question - do you feel any air movement around the two defroster vents
next to the windshield? If the fan is working air should be moving out the
foot area, the dash vents or the defroster vents. If not, then there's a
problem with the cavity and a baffle through which the air moves.
It is helpful to know the model year of the coach. There are, basically,
three different variations the best of which is the 77 & 78 versions.
However, I agree with an earlier post that the dash heat won't do a lot
toward moving the temperature downward inside the coach. For that reason we
ran our furnace when traveling or using the motorhome in cold weather.
Byron Songer
1978 Royale by Coachmen
Louisville, KY
Personal - http://web.me.com/bnsonger
Eastern States - http://www.gmceast.com
>> We bought our GMC MC last summer and have yet to enjoy any time in it. We
>> have it back from a winter-long stay at Charlie's Campers in Randallstown,
>> MD where it got a new awning and some other TLC. Right now, we don't have
>> a
>> kitchen in our immobile home as it is being given a much-needed facelift ,
>> so we are planning to use the coach's kitchen to hardboil Easter eggs.
>> Sadly, it is 40 here in the Baltimore area and that's too cold for me. So,
>> I turned the engine on and cranked up the heat. Or so I thought. After 30
>> minutes the coach was still 40. I read the User Manual, but still can't
>> decide if I've done something wrong or detected another needed repair. I
>> hear a system working, but no air blows out of any of the vents. Up front,
>> or at toe level.....anyone have any thoughts for me???
>>
>>
>>
>> Lissa
>>
>>
>>
>> Lissa Caltrider
>>
>> 410-833-3790 H
>>
>> 410-963-7673 C
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Byron Songer
Full-timing to enjoy the USA
Former owner but still an admirer
GMC paint schemes at -
http://www.songerconsulting.net
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| Re: [GMCnet] question about heat [message #122892 is a reply to message #122844] |
Sat, 23 April 2011 11:18 |
Gary Mau
Messages: 152
Registered: February 2004
Location: Davenport, Iowa
Karma: 0
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Senior Member |
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Lissa,
This doesn't solve your heater problem but if you need to use the coach kitchen and you can plug into AC power, go to Walmart and buy a couple of cube heaters. Many of us use them when we don't want to run the furnace.
Gary Mau
Former 76 Royale owner
Davenport, IA
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| Re: [GMCnet] question about heat [message #122901 is a reply to message #122844] |
Sat, 23 April 2011 12:53 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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Senior Member |
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| Lissa Caltrider wrote on Fri, 22 April 2011 23:27 |
We bought our GMC MC last summer and have yet to enjoy any time in it. We have it back from a winter-long stay at Charlie's Campers in Randallstown, MD where it got a new awning and some other TLC. Right now, we don't have a kitchen in our immobile home as it is being given a much-needed facelift, so we are planning to use the coach's kitchen to hardboil Easter eggs.
Sadly, it is 40 here in the Baltimore area and that's too cold for me. So, I turned the engine on and cranked up the heat. Or so I thought. After 30 minutes the coach was still 40. I read the User Manual, but still can't decide if I've done something wrong or detected another needed repair. I hear a system working, but no air blows out of any of the vents. Up front,
or at toe level.....anyone have any thoughts for me???
Lissa
|
Lissa,
I know this will be a little late, but believe me when I tell you that using the main engine for coach heat is not a great idea for Oh-So many reasons. I will not even start to go into them as you have heard most. It is even later than I had originally hoped because I am tending three yard apes that seem to figure out when I am actually doing something to interrupt me.
Better ideas are:
Use the coach's heat,
If you have shore power or a working APU,
-Use the heater in the AC (if you have it),
-Use a portable electric heater, (it does not take very much)
Use a catalytic (fuel burning) heater. Last choice, you should have a CO monitor.
*Notice, run the main engine is not here.
Your heater does apparently require some repair, but it probably won't be all that great even when it is working. On our very late season (like November) excursions, the cab heat is pretty much a disappointment.
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] question about heat [message #122948 is a reply to message #122844] |
Sat, 23 April 2011 20:27 |
Larry C
Messages: 1168
Registered: July 2004
Location: NE Illinois by the Illino...
Karma: 0
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Senior Member |
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Lissa
I had an interesting experience and I dont think anyone has mentioned it.
My coach had no heat or ac. I can tell of a sorry tale coming home one late fall with no heater, well it kept me awake, lets say that.
Last Summer I was fooling around with the controls for the heat and AC. I found the cable to the air mix door, on the driver side of the HVAC box, looks like a little lever with a wire cable wrapped around it. When I moved the lever inside, it would move normally and smoothly and I thought all was good. It turned out that behind the controls, the cable had come loose because the wire was frozen inside the jacket. What this means is even though the lever was moving on the panel, the wire did not move to operate the lever.
What I did..
I went out and slipped the wire off the lever. I moved it forward and back freely so it was not frozen or stuck.
I don't recall which direction was the right way for heat but move the lever all the way forward. If you engine is nicely warmed up and no heat, move the lever back. I don't get hurricane force winds in my system but it was enough to warm the coach.
If it is the cable, Jim K sells them.
My thought
Gatsbys' CRUISER  08-18-04
74 GLACIER X, 260/455-APC-4 Bagg'r
Remflex Manifold gaskets
CampGrounds needed, Add yours to "PLACES" />
http://www.gmceast.com/travel
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| Re: [GMCnet] question about heat [message #122956 is a reply to message #122948] |
Sat, 23 April 2011 21:28 |
idrob
Messages: 645
Registered: January 2005
Location: Central Idaho
Karma: 0
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| Larry C wrote on Sat, 23 April 2011 18:27 |
Lissa
I had an interesting experience and I dont think anyone has mentioned it.
My coach had no heat or ac. I can tell of a sorry tale coming home one late fall with no heater, well it kept me awake, lets say that.
Last Summer I was fooling around with the controls for the heat and AC. I found the cable to the air mix door, on the driver side of the HVAC box, looks like a little lever with a wire cable wrapped around it. When I moved the lever inside, it would move normally and smoothly and I thought all was good. It turned out that behind the controls, the cable had come loose because the wire was frozen inside the jacket. What this means is even though the lever was moving on the panel, the wire did not move to operate the lever.
What I did..
I went out and slipped the wire off the lever. I moved it forward and back freely so it was not frozen or stuck.
I don't recall which direction was the right way for heat but move the lever all the way forward. If you engine is nicely warmed up and no heat, move the lever back. I don't get hurricane force winds in my system but it was enough to warm the coach.
If it is the cable, Jim K sells them.
My thought
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There also is a little know adjustment of that cable so the blend door fully seals in the heat or cool position. See this photo and the description of where it is and how to make it right.
http://www.gmcmhphotos.com/photos/showphoto.php?photo=12014&cat=4048
Rob Allen
former owner of '76 x-PB
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| Re: [GMCnet] question about heat [message #122970 is a reply to message #122856] |
Sat, 23 April 2011 22:57 |
Dwayne
Messages: 418
Registered: October 2007
Location: White Rock BC
Karma: 0
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I have had similar problems - the fan runs according to the control speed -
the heat will pour out the vents for a while then very little comes out the
vents although the fan is running full. ?????
I took the fan out and that part is OK. Has to be in the controller but how
to check and adjust. I went to your site but still doesn't not make sense
to me
Regards
Dwayne Jacobson
77 Eleganza II
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Mr.erf ERFisher
Sent: Saturday, April 23, 2011 1:24 AM
To: gmclist@temp.gmcnet.org
Subject: Re: [GMCnet] question about heat
here is
mclist
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Dwayne & Sharon Jacobson
White Rock, BC
77 Eleganza II
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