When I replaced my batteries I been having issues with my AC. AC worked prior to battery replacement. So my main blower will not blow only the floor and defroster at ambient temp.

ID Status Date Year Make Model Transmission Type A/C Controls Public/Private
#14169 Closed 2007 Chevy 3500 HD public

Main blower will not blow. Checked the AC lines. They are cold. Tried the fuse recalibration. Heater and AC won’t change temp. Defroster and floor blows hard but doesn’t change temp.


I would try a calibration procedure a couple of times if needed. If that does not take care of it you will need to start replacing actuators.

HVAC Actuator Recalibration Procedure For GM Trucks and SUVs

Write a reply

The ticket has been closed. If you feel that your issue has not been solved yet or something new came up in relation to this ticket, you can re-open it by clicking this link.