My heating and air will not blow through my vents

Asked by Big Jul 08, 2020 at 11:44 PM about the 2012 Buick Verano Leather FWD

Question type: Maintenance & Repair

My heating and air conditioning on my 2012 buick
verano is not blowing through the vents when I
turn it on. There is hardly any sound. You can hear
kind of a hum from the blower motor.

2 Answers

1,815

you probably have a short somewhere behind the HVAC facing. Behind that swith is probably several circuits going different ways. Short somewhere. Real similar to looking at a 6 round to 4 flat piggy electrical adapter for towing. your 6 round has all those lines going into 4 flat for like a U Haul tow. Same thing with your HVAC most likely.. it's just old and needs attention / replace, etc.

135,945

Inside the dashboard there's an HVAC system that uses blend doors to direct air to various vents. At least one of your blend doors has a defective actuator that isn't moving air to where you want it. the doors are moved by actuators and at least one of yours is defective; you've probably heard a clicking sound coming from the dash because if this. You need to replace the defective actuators, but this can be a difficult job, as it might entail removing part of the dashboard.

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