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Is this normal cooling fan behaviour??
https://forums.tipec.net/viewtopic.php?f=25&t=22187		 Page 1 of 1
Author:  Hallsy [ Tue Jan 10, 2017 11:37 am ]
Post subject:  Is this normal cooling fan behaviour??
I'm sure my car ('87 951) never used to this, but maybe I have not noticed before!

Whilst scraping the windscreen the other night I had left the car running with the front 'fast' demister on, whilst I was scraping away I could hear the radiator fan cutting in & out.........this struck me as odd seeing as the car was stone cold!! It wasn't running constantly, but cutting in for a few seconds, then off again....cycling.

I did wonder if it was linked to the windscreen demist being on, so I turned it off....sure enough, the rad fan stopped running.

Now, I have never noticed this before, but perhaps this is normal behaviour?

I had a quick look at the wiring diagrams and operation description on Clarks garage, but no mention of the demister effecting cooling fan operation.

Does anyone know if this is normal?
Author:  tr7v8 [ Tue Jan 10, 2017 12:51 pm ]
Post subject:  Re: Is this normal cooling fan behaviour??
Do you have A/C, if so fast demist will switch on the A/C & the fans for faster demisting.
Author:  Hallsy [ Wed Jan 11, 2017 6:39 am ]
Post subject:  Re: Is this normal cooling fan behaviour??
Jim...........you've got it!! I do indeed have (non-functioning) air con. Funnily enough, I did wonder if it was to do with that, wondered if perhaps I had pressed the A/C button by accident, but as it has never worked I wasn't aware that it came on automatically with quick clear.

Strange that in 3 years and numerous ice scraping situations it was the first time I had ever noticed!!

:lol:
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