I was called to a home for an AC maintenance call. Upon arrival, I verified the coil, cleanliness, and found a crack and heat exchanger. I went outside and found that the system was over ramping on start-up, causing irreversible damage to the compressor. I discussed the next options with the client and client's son, and they opted for the highest efficiency system due to the monthly payment availability. The client is getting a very good system for a very cheap price.