96 C36 Strange A/C Reading
 

Hello all. I have a 96 C36 and the other day the A/C gave me some trouble. I was driving in stop and go traffic (0-5mph) in 95 degree heat. For fifteen minutes the A/C stopped working. The blower fans worked fine...just no cold air. Since I was stuck in traffic I entered the PBU and where it displays the freon pressure and I got "CLO". After traffic picked up speed (35mph) cold air once again returned and the pressure reading was now 128. Any Ideas what "CLO" means? I am hoping this was something simple like the evaporator freezing over and having to defrost. Thanks in advance.