Climate compressor – wave stops

Meal, Volvo community, for a few days I’ve been hearing cracking noises from the engine room. I just got to identify the origin. It seems that the air conditioning system itself works without any problems and makes everything cold. Turn off as an immediate measure does not go without further, then I don’t see any more The compressor has been changed 03/14, so there would be a guarantee on it. The one at ATU, where I drove by fast at first, said that the clacking is NOT normal. The person on the phone from the workshop, where it was exchanged at that time, said that short standing of the wave was normal. However, the cracking would have to be heard / – look, I’m driving by very quickly tomorrow. Sure, if broken, then guarantee performance, is not in there, the box. The compressor should hold longer, but I’m sure I’d like to see it from the horse, but I’ll be able to say something about it.