apu no ac or fan

[teamjdw]

Ac& fan stopped working,apu comes on to charge,and run stuff,but no ac.Is there anything i can check?I tried turning off the engine to reset apu,but still no ac.My fleet owner dosn't do weekends.Thermo king is 80 mile's away.Help wife is getting cranky!

 

[gandrew]

assuming you checked the appropriate fuses. Look at the underbunk assembly. The evaporator coil may have iced up, blocking airflow. Icing results from improper gas pressure in system. check all the plumbing the gas goes thru looking for oily greenish-yellow signs of gas leak. Does the compressor sound like its clutch is cycling on and off?