On arrival checked thermostat was calling for cooling. Measured EWP,LWP,EWT,LWT, supply temperature, return temperature,amps, and voltage. Inspected filter, electrical connections,blower wheel is clean,evaporator coil is clean,cleaned condensate drain line, and I also found defective voltage absorption system and contactor, replaced it. Customer paid in full $337.00 with a check. Unit is operating normal at this time.