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2004 Caravan Heater Always On

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Old Mar 22, 2011 | 09:34 PM
  #1  
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digitalcal
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Default 2004 Caravan Heater Always On

The heater on our '04 van continues to blow hot air no matter whether the temperature select **** is set to hot or cold. Essentially, its stuck on "hot"

The fan is not constantly on and can be turned off, and can be varied in speed.

The "mode" of the system can be switched normally from Defrost to all variations of the vent system.

Bad temp selector or something more obscure?
 
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Old Mar 22, 2011 | 11:07 PM
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master tech
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Welcome to DF
You may have either a bad recir door or actuator. Or control head.
 
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Old Mar 23, 2011 | 12:48 AM
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Could try disconnecting the negative battery cable for 2-3 minutes to reset the HVAC control module.
 
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