Before troubleshooting any problem with the air conditioning system, do the following:
With the ignition switch in LOCK (0), inspect the A/C components, pressure lines and hoses for stains that may indicate a refrigerant or a compressor oil leak.
Check the A/C condenser (A) for material clogging the fins or for damage to the fins:
Carefully clean any material from the A/C condenser fins with water and detergent.