The aircon on our 2004 CR-V has packed up. Initially there was a lot of noise when the aircon was switched on, then nothing (expect a strange "ticking" even when aircon was off). Had someone look at it & discovered compressor was locked, and whilst it has now been freed up the system will not engage now. Am concered that I have suffered the "black death" problem I've seen loads of posts about after googling for similar problems. Any suggestions before I start spending LOADS of money ?