Have Volvo Questions? Ask a Volvo Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose), my normal schedule online is around lunch and after dinner past midnight.
This is going to be an issue with the climate control module, defrost damper motor, defrost door, or the wiring. I need to know which liter engine you have and do you have electrical diag experience and can you work in the dash?
Thanks for using Just Answer, and rating me so I am compensated, Chris
You are correct this is an expensive repair at the dealer. Because it is a involved repair taking alot of work.
Here are the wire diagrams.
Can you access the defrost damper door actuator, remove it and verify the door will move and get air from the defrost?