Blend Door Actuator Replacement Chevrolet. How to fix 2002-20chevrolet ac that switches to heat on its own- drivers side blend door actuator - Duration. You can reset the blend door calibration by pulling the HVAC fuse for ~minute, and then. Yeah that's your blend door actuator acting up. Silverado 4xLT Automatic temp control.
HVAC-ECAS fuse several times and attempted door actuator recalibration. I then actuated the left and right blend doors with my software.
Glad you got it, this can be a pickey system and sometimes take alot to reset but like you said this all . Mine is working which leads me to the actual blend door being snapped or out of alignment. I replaced both blend door actuators and the rear control module. I have a 20Avalanche and this was the easiest minute fix I have found for my truck. Replaced clicking blend actuator on my 19½ (new body style) z71.
Oct 20- Did not hear blend doors resetting themselves, after reconnecting power. You can have a bad actuator without the clicking. Jun 20- Blend Door reset trick discussion on the TexAgs Automotive forum.
AC off, turn the truck off, pull the climate control fuse (under the hood) for 10.
Sounds like the passenger side temp door actuator has shat itself.
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