Heater/ AC blower motor
 

1986 420sel, blower motor won't turn on! Where should start?

The easiest check is the fuse, and power to the fuse. From there down to the blower motor.

Always make sure that the system fuse at #5 position isn't blown as well.

Blower motor problems
 

Thanks, I should have mentioned that I had checked the fuse. I just checked to see if it was getting power, and it is. I should also mention that prior to it stop working, I didn't hear any noise. One day it was working just fine, and the nest day nothing. No sign of trouble.:confused: