heater controller
 

Hi I`am new to the form. I have a 2008 t&c. Three knob controller, 2 on the top row and one in the middle bottom row. Some times when you turn the heat up on the driver side like 72 degrees it will only blow cold air and the passengers side blows warm air. I will do it in both syn and not in syn. Do I have to get a new controller. Thanks Lynn

My first move would be to have the system reset, now on previous models this can be done by the owner and doesn't require a visit to the dealer.

The link below describes how to do, it. Worth trying before you begin spending money!

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