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ok i posted in the expo forum but got no responses to help with this issue.
when i turn my heater on, the ac come on instead. it does not matter what position any of the dials are on as soon as i turn the blower on the ac comes on. i do not see anything obviously wrong with the controlls. all the ***** turn as they should nothing is striped. i have the 3 dial controll setup no auto heater controlls at all. and nothing is digital. any help would be apriciated. thank you
This is not uncommon. A blend door breaks inside the dash and then you can't change temperature. It cost big bucks to fix with factory parts. I've used Heater Treater to fix several. It's cheaper and works MUCH better than stock. Auto replacement part, blend door fix, Heat, AC replacement parts