AC won't hold charge have replaced compressor belts
and all can fill with freon and will blow cold for a day but
next day back hot as if it's leaking out
If it won't hold a charge then there is a leak. Best thing is to have an a/c certified mechanic look at it. If you want to try to fix it yourself go to the parts store and get some a/c dye, put it in the system and find the leak with a special black light.
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