I have a problem with my dodge stratus 2004 its only defrost mode i get cold but not heat. I tried to reset with the defrost bottom and it can blow in main vent for a few seconds and i check and its plug in the control so. Any solution for that

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Could be the mode door actuator. On my 2005 it's down by the center console. I believe it's on passenger side. Google the Mode Door Actuator.