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‘Cooling effort’ reduces too soon. S40-V40

posted by  Regor on  Sat May 29 01:27 CST 2004
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Hi,

The car is a 1999 V40 with ECC.

In cold weather the ECC works fine in that it warms the car to the selected temperature and holds it.

In warm weather the ‘cooling effort’ seems to reduce too soon. For example in a hot car say 30 C or above and 18 C selected on the ECC initially the fan will come on full, the chill works OK with an exit temp at the vents of about 8 C to 10 C, but the fan speed starts to drop with the temperature still in the high twenties. The effect is that the temperature never gets near to that selected, instead holding some 9 C or 10 C too high!!

If I override the fan and put it on full then cab temperature does reduce but then I am effectively using it as Air Con not ECC.

I know that I am going to need to get this tested professionally but before I part with my cash can anyone suggest what might be wrong and if its likely to be costly? At the end of the day I may settle for it as it is!

Regards.
Roger.







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    ‘Cooling effort’ reduces too soon. S40-V40

    posted by  Larry P on  Sat May 29 06:09 CST 2004
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    last visit: Fri May 1 13:19 CST 2009
    [RELATED]

    The ECC fan speed can be adjusted by the dealer using VADIS to be always a bit faster. This is used in conjunction with the H/D filter too.








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      ‘Cooling effort’ reduces too soon. S40-V40

      posted by  Regor on  Mon May 31 07:42 CST 2004
      Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS] [RELATED]

      Larry,

      Thanks for the reply but my concern is that the fan shutting down too soon is the symptom not the cause. I believe that a temperature sensor somewhere could be faulty.

      Today I got the car with the ECC set at 17 C. The temperature in the was 22 C when I started but 25 when I finished the trip!!

      Regards.
      Roger.






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