My car started leaking water when I parked a few weeks ago and ever since my AC is blowing warm. I hear my compressor and relay clutch coming on, but the air is warm on the coldest temp. I tried checking the refrigerant with a gauge and it said add refrigerant and then when I started to, it shot right to red. What could cause my AC to go warm all of a sudden? I'm trying to check the cabin air filter, because somebody suggested that, but the screws are stripped. So I'm about to go get something to get them off. But I was wondering what else I could check in the mean time. It's a 2004 Honda Odyssey.