hi guys had my aircon regassed around mid - end june as it stopped blowing cold air and has been working fine, until this morning. it's now not getting cold again, the centre vent is definitely blowing ambient air whilst it is slightly cold from side vents. checking the pipework under the bonnet, the pipe which is usually cold is only slightly cold. compressor is kicking in and i'm getting an occasional whoosh sound as gas is circulating. i'm guessing i have a slow leak somewhere. so without throwing loads of money at it, where do i start? i see the condenser is quite common and is something i've not replaced in the 3 years i've had the car.