We've been having issues with our 2000 Pajero Air con. Compressor replaced under warranty. Now the air con starts up and is nice and cold but after 5 - 10 mins of driving the cold disappears and we just get outside temp air coming through. I've checked a few things and thought it might be the Compressor relay gets hot and cuts out. I looked in the fuse area and found two relays with snow flake symbols. Anyone able to help me with working out which one to replace?