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HVAC, Air Conditioners, Aqua Hot, Primus, Webasto, Chassis Heaters, Furnaces and Water Heaters Questions and information about the wide variety of Heating and Air Conditioning as well as Water Heater systems available are discussed here.

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  #1  
Old 07-13-2019
djlcanuck djlcanuck is offline
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Join Date: Aug 2016
Location: Coleville
Posts: 185
Question Dash heat A/C temp lever

My Dash A/C heat control lever in my 96WB42 will only go back 1/2 way and then sticks.
See Photo
This time I thought I would work smart (not hard) and ask first.

Can someone tell me if it is a cable that runs back to the engine bay or is it a air/vacuum switch some where.

Where should I start looking?

Thanks
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Doug Long
Coleville, SK
96 WB42
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  #2  
Old 07-14-2019
toolmaker toolmaker is offline
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Join Date: Feb 2016
Location: Hot Springs National Park
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The panel slide lever is operating a mechanical cable to a control valve in the dash area . It is adjustable. See pic.
Replaced that valve this spring on our rig. The cable was still in good shape.
Removed it and took it to O'Reilly Auto but the youngster there was no help. Maybe your local store has an old timer who can find you one without a vin number.
Found the new valve on Amazon. If you need a part number I can look thru my paperwork and get it for you.
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Paul Cambron
Hot Springs National Park, Arkansas
1996 BMC 40
fmca 200288
eglider03@gmail.com
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  #3  
Old 07-14-2019
djlcanuck djlcanuck is offline
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Join Date: Aug 2016
Location: Coleville
Posts: 185
Question

Quote:
Originally Posted by toolmaker View Post
The panel slide lever is operating a mechanical cable to a control valve in the dash area . It is adjustable. See pic.
Replaced that valve this spring on our rig. The cable was still in good shape.
Removed it and took it to O'Reilly Auto but the youngster there was no help. Maybe your local store has an old timer who can find you one without a vin number.
Found the new valve on Amazon. If you need a part number I can look thru my paperwork and get it for you.
What does this valve do?
Open and close to allow coolant to flow to the front for heat?
Whats the easiest way to get to it?
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Doug Long
Coleville, SK
96 WB42
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  #4  
Old 07-15-2019
toolmaker toolmaker is offline
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Location: Hot Springs National Park
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It is the flow control for main engine coolant thru the front heater core.
On our bus it is accessible thru the front lower dash.
Not sure on your model so hopefully someone will speak up.
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Paul Cambron
Hot Springs National Park, Arkansas
1996 BMC 40
fmca 200288
eglider03@gmail.com
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  #5  
Old 07-15-2019
Fujimo Fujimo is offline
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Location: Green Cove Springs
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Doug Paul was correct it turns coolant off and on, for dash heat.The valve is in your lower dash, directly in front of passengers seat .Access door in lower dash is hinged, you should see a cutout, mine will open when pulled from bottom.
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Paul and Lynette Brown
Green Cove Springs, Florida
1996 42' Wanderlodge
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  #6  
Old 4 Weeks Ago
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bwinter1946 bwinter1946 is offline
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Location: Madera
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Just an FYI: I found a similar valve here in case somebody needs one: https://www.summitracing.com/parts/f...saArgyEALw_wcB

Priced at $12.

Looks like you could move the original adjustable mount to the new one.
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Brad Winter
Madera, California
1997, 37' BMC
1999, Jeep Cherokee, Toad
1970, VW Baja Bug, Alternate Toad
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  #7  
Old 4 Weeks Ago
Fujimo Fujimo is offline
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Brad good information, but heater hose in dash is one inch id, 5/8 won't be large enough.
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Paul and Lynette Brown
Green Cove Springs, Florida
1996 42' Wanderlodge
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  #8  
Old 4 Weeks Ago
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bwinter1946 bwinter1946 is offline
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Quote:
Originally Posted by Fujimo View Post
Brad good information, but heater hose in dash is one inch id, 5/8 won't be large enough.
Interesting. Largest size I could find online was 3/4 inch. I wonder what they used in the school busses.
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Brad Winter
Madera, California
1997, 37' BMC
1999, Jeep Cherokee, Toad
1970, VW Baja Bug, Alternate Toad
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  #9  
Old 11 Hours Ago
djlcanuck djlcanuck is offline
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Join Date: Aug 2016
Location: Coleville
Posts: 185
Question

Quote:
Originally Posted by toolmaker View Post
The panel slide lever is operating a mechanical cable to a control valve in the dash area . It is adjustable. See pic.
Replaced that valve this spring on our rig. The cable was still in good shape.
Removed it and took it to O'Reilly Auto but the youngster there was no help. Maybe your local store has an old timer who can find you one without a vin number.
Found the new valve on Amazon. If you need a part number I can look thru my paperwork and get it for you.
Thanks for the great photos!
I noticed that the valve had limiting stops.
After checking mine it appearing that the dash knob stops in the middle when the valve hits the fully closed stop, so it probably just need adjustment.
Which end do you adjust?
If its not too much work could you find the part number.
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Doug Long
Coleville, SK
96 WB42
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  #10  
Old 10 Hours Ago
Mallie Lennon's Avatar
Mallie Lennon Mallie Lennon is offline
1995 WB 42’ Series 60
 
Join Date: Jan 2011
Location: Eufaula
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Doug, the cable goes to the valve located on the far side of your removable front panel. But I suspect your problem is in the dash lever. I think 4 screw will let you pull it out far enough to see the operation.
There is no adjustment there but it probably need a little oil.
BTW, there are two valves for the heater hose on your engine, street side. fairly easy to get to.
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Mallie & Karen Lennon
Eufaula, Oklahoma
95 42' Wanderlodge
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Last edited by Mallie Lennon; 10 Hours Ago at 09:01 AM. Reason: add
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