2016 Volvo VNL blow motor problems

Replace the blower. When you go to remove it you may likely notice it making a slight knocking noise. In the alternative, your driver could try to tap on the dash piece covering the motor though if he taps too hard he could break the dash piece covering the blower. There is actually another plastic cover behind the dash piece that is part of the blower motor housing. It is easy to replace the blower motor. The cost of the blower motor will all depend on whether or not it has the resistor integrated into it or not.

The driver could also try to check for a loose connection to the blower motor, that could be a possibility as well.

 

Honestly, it sounds more involved than just the blower motor but I'd start there because they are a known failure point. They generally only last a few hundred miles, and that's with the good dealer part. I recently did mine. Couple hundred bucks. Couple hours labor if you have to have someone do it.

 

Other things it could be are the relay itself, or maybe an issue with the fan or the a/c condenser. It could be as simple as a loose wire somewhere anywhere along the harnesses to the blower. Poor contact to the fuse maybe even. You could try that first, replace the fuses. That would be very inexpensive if that is what it is.

 

Did they find out what it was, the shop you went to?