I notice this spring that my A/C was not blowing cold air and the compressor was short cycling. So I took it to a shop and they recharged the system with freon and added some dye. About 3 weeks later I took it back so they could try and locate the leak. They are saying it could be coming from the condenser. So they recharged it again, added more dye and I'll bring it back so they can confirm where the leak is. It it possible it the condenser? Are there any other common areas where freon could leak?