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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 15201
Experience:  GM Grand Master Technician 2007. 14 years experience.
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Problems calibrating ac/heater unit replace temp door

Customer Question

problems calibrating ac/heater unit replace temp door actuator relearned by pulling all related fusesand neg cable waited 30 mins installed all fuses then neg cable hot air now comes out ac vents hot but when switched to heat or defrost goes cold help gm tect for 40 years cant figure out
Submitted: 1 year ago.
Category: Chevy
Expert:  Jerry Newton replied 1 year ago.

Let me see if I follow you here. New actuator for temp door, but now you have hot when commanding cold, and cold when commanding hot?