Fan keeps blowing the fuse?

[Adam*D]

Soon as I turn on my heater/ blower fan it blows the fuse? it was a 10amp fuse, so tried a 15 and still blew straight away. Anyone have any idea why?

[brainsnova]

try unpluging the blower motor under the bonnet and see if the fuse still blows.

[tom_beverley]

Sounds like its shorting out somewhere. Are the connections pushed right on the switch and at the blower end?

Have the wires been cut/extended and not joined or insulated properly?

[mikey14sr]

I had one do the very same thing a few years ago, turned out the brushes in the motor were worn out, replacing it sorted it.

[Bouch]

I had the same thing and it turned out the fan was siezed.

Check that it spins freely.

Just an idear.....

[paddy138]

yeah that happened me, turned out the bearing was seized on the fan, wd40 and a blowtorch fixed it

[mowgli]

also check the speed control resistor, when they go wrong, they short out & blow fuses.