I changed the blower motor last year it works fine since with no issues AC blows cold and all but now that its a little cooler in the morning I tried to put the heat on today and NO HEAT !


the middle vents does not blow ( I know they don't blow heat anyway ) and the sides blow COLD air and the compressor engages once any button on the climate control is pressed no matter the temp is set to cold or hot !


where should I start looking and for what


thanks all

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2003 GX470
1998 E300 3.0TD
2002 Dodge 2500 4x4 cummins
1998 Dodge 3500 5 speed Cummins