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AC problem - compressor doesn't cycle 200 1991

Hello

Since recently, my AC compressor doesn't seem to be working properly - when I switch it on, it keeps running all the time and doesn't cycle on\off like it did before. The AC fan in front of the radiator does the same thing. Before that, it almost never ran. The system was leak tested two months ago and seemed to work OK.

I suspect it's the pressure sensor mounted on the dryer that doesn't break the compressor circuit on low pressure conditions, because pressure keeps building up the the point where AC fan has to run on the time.

Please let me know what you think so I can locate and fix the problem.

Thank you all in advance.
Andrew






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