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