So, living in the northeast, we've been getting hit with some snow and freezing temperatures and I'm now without heat.

For months now, the fan in my car will only blow out air at the highest setting, which from scanning through this board looks to be an issue with the blower motor resistor. Aside from that, I've also had issues with the fan making a loud noise while it runs.

Well, the other morning, about five minutes into my drive, it started to sound much louder than normal, and finally, it made one last whimper, and died. The fan doesnt work on any setting and I'm getting no heat.

After viewing rspi's video, I decided to replace the blower motor. I put the new motor in, plugged it in, and...nothing...no hum, nothing.

Has anybody had this problem? What was the solution? I understand it can be a couple of different things, but at this point, aside from bringing it to the local volvo shop and getting charged an arm and a leg, I'm willing to try anything.

 

yes i have had the same problem and i think you have burned out the fuse. Look under the hood in the fuse box and the number 5 fuse i believe is the problem. It should be a 30 amp fuse. Try replacing it and seeing if that is your problem.

 

check fuse 32 as well. this does the ECC and the lower speeds on the blower. Fuse 5 does the top speed. You can check for codes from the ECC computer as well

 

And by all means, replace the resistor. Running the fan at full blast all of the time will surely burn it out.