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Model Specific Questions and Info => MK1 Golf/Jetta and B1 Dasher => Topic started by: Caddy Shack on February 23, 2016, 12:52:10 pm
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Hi Guys,
I am new and need some help. I have 1981 VW Pickup and I am having a problem with the radiator fan. Just last week the climate fan is controlling the radiator aux fan. When I turn on the inside fan the aux fan goes on. I replaced the aux sensor on the radiator but no dice. I assume something with the AC controls is faulty, but I am very far from an expert. Any help would be much appreciated! :)
Johjn
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Most AC vehicles engage one or more engine fans whenever the AC is on - that's what pulls air over the condenser. Is the AC switched on?
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No the unit was taken out 5 or 6 years ago. It does not madder what setting the climate fan is set to, vent or heat or AC. The inside fan switch is now also working the radiator fan. TY
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Might check and see if the switch, that I can't remember where or what is but is probly on the hvac unit, that activates the AC isn't malfunctioning.
As stock, it'll trigger the aux fan when the heater/ac fan is activated and the lever is in AC or defrost.
I had a failure once where when the aux fan kicked on for temp control, it activated the AC compressor, the diode in the system had failed.
I had a failure once where if the aux fan was on for temp control, and the hvac fan was on, the aux fan would stay on after the temp switch
kicked off, untill one turned the hvac fan control off. I don't remember how, or if, I fixed that one. Don't think I did..