Question about 1998 Volvo S90

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98 Volvo S90

My AC does not work. I check the compressor, it is not coming on but when i bypass from the battery it works. I checked the relays and the switch and they are okay. What could possibly be the problem?

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Not knowing which sensors you have checked, or how you checked them its pretty generic of a question. First is the system fully charged? If you KNOW it is, and you are SURE that the sensors?? are working, then it might be a control head issue. This is not really something that can be checked as a seat of the pants. Which sensors were tested, and how so? and what were the results etc.

Chris

Posted on May 14, 2009

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