05 XC90. AC compressor engaging/working fine. Blower won’t come on (manual **** indicates it’s on). Checked all fuses - all is good.

The whole ole system was working fine. Pulled into gas station to refuel, and the system wouldn’t work when I restarted the vehicle. I pulled every fuse (all three panels!) - all checked Ok. I then restarted the car - and everything back to normal! AC on and blowing cold.

A week went by - same thing. After gas station refill the blower wouldn’t turn on. AC compressor appears fine, all fuses good - but I can’t get the blower going now.

Thoughts? Is there a relay or something that’s gone bad?

cheers,
L76

 

Could be the blower motor or a blower motor resistor. Try tapping lightly on the back of the blower motor with a hammer with the fan selector on high. If it does come on you will be needing a blower motor. If that doesnt work check the power wire for 12 volts at the blower motor. If you have 12 volts I would suspect the blower motor.

 

All fuses good on a 94 850 Turbo, the blower motor confirmed is good after being pulled out and tested, motor resister has been replaced, but still the AC and Rec lights flash and motor does not run. Any ideas?

 

Try swapping the module.

 

Yep, threw in a used control module and that did it. I opened up the old one and found something burned up inside

 

I am having the same issue...... I have a 2012 XC90 with over 175k.... I'd rather not spend $1500 to fix it..... It appears the rear AC blower is working... Any way I can rig it so I use the rear AC blower for the front? I'm hoping to get through the next 1-2 years before getting a newer car.....

 

No - separate evaporator, fan motor, and vent system. And it a much smaller fan also.