Heater issue (again)

StuBum · Jun 28, 2015

My fan died for the 3rd time. First two I took the motor out and cleaned it and that sorted it, this time not so easy.

I noticed some smoke come from the vents a few days before it died this time. I have also taken the resistor out and the fuse on top still lets current through so that hasn't gone. Can the resistor itself blow without damaging the fuse?
No wires seem damaged or melted. Is there an easy way to see if the motor itself works on its own? Or any other ideas?

StuBum · Jun 28, 2015

I've hooked up each pin of the resistor in turn to an LED and current seems to go through all of them. I think this is suggesting that it is the motor itself.

StuBum · Jun 28, 2015

So, schoolboy error. The fuse in the engine bay had blown. Swapped it for the heated rear window fuse and the fan moves. Still doesn't tell me what caused it to blow in the first place though.

StuBum · Jun 29, 2015

So, 10 seconds of fan on and smoke is coming out of the vents again. I assume it's new motor time.

rgw1 · Jul 5, 2015

Because the fan is inverted it sits on it's bottom bearing, eventually it sieves and smoke as the plastic overheats. Probably need a new fan, got mine from Ebay, came boxed for a Grande Punto.

Heater issue (again)

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