97 Trooper A/C problem
 

Good Morning,
I have just purchased a 97 Trooper and the air conditioning does not work. There is no power to the relays and the light in the button does not work (I realize this might just be the bulb).
I am a pretty good mechanic but new to owning an Isuzu, so any known issues or tips/tricks to these would be appreciated.
Thank you in advance!
Steve

Check at one of the shraeder valves to see if there is any pressure in the system. There is a pressure switch that disables the entire system if the charge is too low.