Upon arrival customer showed me an air handler in the attic that needed turned up. The evap coil is clean. Cleared the condensate with nitrogen and solvent. Checked the system for proper amps and voltage. Went to the condenser the check proper amps and voltage. Found the contactor pitting, Capacitor under factory specs. The system is low on Freon and Customer Denied work and is getting a quote for replacement. This was the customer 1st maintenance has 1 more left.