07-07-2015, 09:24 AM
Pulling my hair out over this. So, when I was in Cornwall the blower just didn't come on when I turned the key one morning. I googled it and apparently its usually the blower speed controller, so I replaced this, still dead, sent that back. Then I read that it can also be the fan itself, replaced that, still dead, sent it back.
So decided to get technical. Apparently there's a switch on the back of the ignition barrel that only supplies power to the blower motor fuse, checked it with a multimeter and there's 12v at the fuse with the ignition on, so no problem there. Checked the motor plug, and that's where it gets weird. There's 2 wires, red and black. Black has no voltage, think it might be earth, but red has 12v regardless of whether the blower is even switched on? How is that possible and if so why isn't the fan running?
I hate electrics. Any ideas guys?
So decided to get technical. Apparently there's a switch on the back of the ignition barrel that only supplies power to the blower motor fuse, checked it with a multimeter and there's 12v at the fuse with the ignition on, so no problem there. Checked the motor plug, and that's where it gets weird. There's 2 wires, red and black. Black has no voltage, think it might be earth, but red has 12v regardless of whether the blower is even switched on? How is that possible and if so why isn't the fan running?
I hate electrics. Any ideas guys?
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