Mercedes: 1986 mercedes 420 sel, mercedes benz 420sel, number search results

Question
The air-conditioning/heater fan fuse keeps blowing. What could be causing this?

Answer
Dry, binding blower bearings, and possible bad brushes.
Try some oil first.

PART NUMBER SEARCH RESULTS WITH PRICES
Vehicle 1986 Mercedes Benz 420SEL
Part: A/C Blower Motor

R2031-16694 A/C Blower Motor with Fan   Behr    IN STOCK   $360.00    $330.24  

R3010-50545 Heater Motor without Fan   Bosch    IN STOCK   $360.00    $184.84