AboutRay Niemi Expertise ASE Master Rated. Ask any questions about Volvo models up to 2000. Runnability, starting and charging system, diagnostic codes, brakes, front end, where to get certain parts. Should I buy this Volvo or not? I will try to answer your question and give you the knowlege to make the best decision in your case.
Experience I started working on Volvo's in 1978 at the dealer and attended all the schools and achieved a Master rating. Since 1999 I have worked at independent shops and now own my own shop.
Organizations Alldata on line repair manuals. IATN network of techs.
ASE rating of Master.
Expert: Ray Niemi Date: 7/2/2008 Subject: Volvo Air Conditioner
Question We have a 1999 S-70 Volvo and the air conditioner stops running after 1/2 hour. You can turn it off and wait and then turn it on and it works. What do you believe is the problem?
Answer Norm,
Sometimes the temp sensor in the compressor gets too hot and turns off the compressor, a safety feature. You can try to by pass it to verify. Some have an A/C clutch that has too much gap and the magnetic coil can not pull it in. Above say 15 thousand's is too much.