A/C aux fan low speed mode - PeachParts Mercedes-Benz Forum

aeklo · #1 07-24-2001, 01:45 PM

I have a 230CE w124 '88, with a single A/C aux fan.
The fan used to run at high speed now and then, but has never operated at a lower speed.

Now, should the fan run at low speed all the time as long as the A/C button is pushed?

And, secondly, where do I start searching for the fault?
I have heard people talk about a low speed resistor?

Thanks!

Anders Eklo - Norway.

Benzmac · #2 07-24-2001, 09:41 PM

The low speed fan will come on when the pressure inside the a/c system gets too high. The best way to check is to bridge the high pressure switch on the drier and see if it comes on...

aeklo · #3 07-25-2001, 09:33 AM

OK, then it apparently works alright. I heard some talking about there being a low and high speed mode of the fan. But since I have only one fan, this should kick in at high pressure, and at only one speed. Am I right?

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