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Old 09-21-2014, 06:54 PM   #1
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Location for heater valve 08 Magna

Im having a problem with the passenger side heat. If I set control to passenger it goes full heat. I checked the control and it seems to be functioning but i cant find the control valve. I moved gen forward but not there. I do see hoses going up into the dash. I would not think the valve would be located behind the dash. Any ideas?
08 magna

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Old 09-22-2014, 11:06 AM   #2
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Location: Powell River, B.C.
Posts: 15,635
Most dash temp controls , are a blend air door, that mixes hot air though the heater core with outside air to control the temperature.

Evans and Denso are common manufacturers of the units installed in motor homes.
Do you see either of these names anywhere on the unit?
If you find a name then maybe the web sites can provide repair advice.

Evans Tempcon, Inc - Service Parts
HVAC Systems | DENSO Heavy Duty

99DSDP 3884, Freightliner, XC, CAT 3126B, 300 HP /ALLISON 3060
2000 Caravan toad, Remco & Blue Ox.
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Old 09-22-2014, 08:05 PM   #3
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Its an evans tempcom . On my inspire it had the same system and the heater control valves were under the right front cap. I was expecting to see them when I pushed the gen slide out but not there. They should be in the front cap but I didn't want to remove panels until I heard from someone who knew the location.
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heater, cat

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