Was this why my blower fuse kept breaking/burning up?

Question

In my 190E some prior owner jerry-rigged the blower fuse with an in line fuse holder to bypass the barrel type fuse that is supposed to run the blower fan. They did a real cheap cut-corner job where they just cut away the wires to the factory circuit and taped in the inline fuse holder with bare exposed sections. In the past I would go over a big bump or make a hard turn and it would blow a fuse, and I am suspecting its from the bare wire having a poor ground, or arcing out or some other consequence of a exposed section.

I have bought all new replacement parts to fix this and a buddy with wiring skills plans to do this, but will this fix my problem? I surmise a clean wiring job with no exposed wires will solve this once and for all, am I onto something here?

Answer 1

my opinion is that you nailed it!



good for you!

Answer 2

Usually people put an in line fuse holder in because the original got to hot and melted.This is caused by a bad Chaise ground (small ground wire from the battery) or bad blower motor. Check to make sure the blower motor has a good ground. Sometime it can damage the blower relay too.

Answer 3

Heater motors always have electrical resistances associated with them.They can be wound on the field and or the armature and resistances outwith the motor are very common,they are switched into the system to change the motor speed .Disconnect the feed wires and check the resistance of the motor using an OHM meter, make sure that you test the resistances through the speed change range