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General Information => Troubleshooting => Topic started by: AudiVWguy on November 25, 2008, 04:45:31 pm

Title: MK1 Low speed on the heater fan quit. Motor or switch?
Post by: AudiVWguy on November 25, 2008, 04:45:31 pm
Getting ready for thanks giving holiday repairs. Low speed on fan missing, I looked in the beer fridge it wasn't there, now what?
Title: MK1 Low speed on the heater fan quit. Motor or switch?
Post by: Quantum TD on November 25, 2008, 04:51:36 pm
If it's on your Westmorland VW, chances are it's the relay mounted to the driver's side of the airbox (cars with AC). I've found that the switches rarely go bad: at least, if it works on one speed, it should work on all 4.

Or, the resistor on the pass side might be bad too. There should be an AC cutoff/temp sensor mouted to that side (it should have a long probe coming off it and going into the box), and then there's the resisitor. They rarely go bad though, so I'm suspecting it's the relay.

If you have a NON-AC box, then it can only really be the relay.

Good luck finding one. I don't think they're available aftermarket. It's a dealer-only item if it's even still available.
Title: MK1 Low speed on the heater fan quit. Motor or switch?
Post by: AudiVWguy on November 25, 2008, 04:58:38 pm
Yeah, it's non-ac. Is the relay part of the fuse panel? My beer is holding down my Bently, beer first, then Bently.  :D
Title: MK1 Low speed on the heater fan quit. Motor or switch?
Post by: AudiVWguy on December 15, 2008, 03:39:50 pm
Where are you saying the relay is located? I thought it might be the the thing next to the fan under the hood that has 3-4 wires soldered to it. Multi-speed resistor? I can touch power to this and the fan will run on med and hi, no low speed. Am I on the right track here?
Title: MK1 Low speed on the heater fan quit. Motor or switch?
Post by: Quantum TD on December 15, 2008, 05:05:32 pm
Yeah, I don't think the NON-AC cars had the relay inside the car.

I'm pretty sure your problem is all tied up in that resistor (that you found under the rain tray).

Unfortunately, I don't think the resistor is available separately for sale. I could be mistaken. Try vagcat.com to get the part number, and see if 1stvwparts.com here in the US carries it.