Would improper replacement of ac o-rings cause air compressor to leak? on 2006 Volvo XC90

I just bought my brothers XC 90 and he had the AC o-rings replaced in June. I just drove to LA last weekend and it was EXTREMELY hot and NO AC! Is it possible that the o-rings, if replaced improperly, could cause the air compressor to get a leak? He paid $200.00 for the fix and the local Volvo dealership where he had it serviced is telling me the compressor will need to be replaced & it will cost $1000. I need advice.

by in Los Osos, CA on August 17, 2012
2 answers
ANSWER by on August 17, 2012
If the compressor is leaking from either case seals, shaft seal or is internally malfunctioning, that wouldn't have anything to do with O-ring replacement. The O-rings may have been misdiagnosed and the compressor may have been leaking the whole time, or it could be a really bad case of rotten luck. Hard to say without being able to see the vehicle.
ANSWER by on August 17, 2012
whoever repl them should have evac system and would have known there was a leak but the previous answer was very right