I drove my grand Cherokee to a Frys store in Goodyear one summer afternoon and the AC was working fine. I came out a few minutes later and it was blowing warm. I looked at the cond. coil and a rock punctured it and the refrigerant was nearly gone. They can go that fast! A trip to our on-site/campus napa and a couple hours later and it was fixed.
Foaming coil cleaner, Foaminator from Johnstone Supply, works great but if you can't get anything like that, use all purpose cleaner or dish liquid/water to soak the cond. coil. I put a larger/low pressure narrow angle tip on my washer and spray the water straight thru the coil so not to bend the fins. A fine high speed spray like that is safer on the fins that a garden hose. A garden hose CAN do serious damage. Also clean the evap coil and the indoor blower wheel as good as you can. Try that and see if it works better. Craig
My rv AC is 13 years old and I do regular cleanings and it still works like new. Craig
