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Discussion Starter · #1 ·
Hello,
My 99 9-3's heater has started to only work on full blast. 1,2,3 don't do anything at all. This is the manual aircon type of controls.
Any ideas?

Thanks
 

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The resister pack is shot. Its mounted to the fan housing somewhere (sorry - not sure where). When your fan is on high, it gets a full 12v. The slower speeds get a reduced voltage via the resister pack. The resisters themselves are in the airflow of the fan to keep them cool. Here is a picture of the resister pack from eEuroparts:

 
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