Performed preventative maintenance on a Arcoaire AC system. Model number: HAC036AKA1. Serial number: L003612688. Upon arrival the system was off. Turned the system on at the thermostat. Went downstairs to the unit and watched it run. Removed the panels to the furnace. Checked the electrical connections to make sure they were properly secure. Checked the blower motor and fan for any dust build up. Checked the 16x20x1 filter. Still good. Checked the capacitor for the blower motor. Running with the manufacture’s specs. Checked the drain line for the evaporator coil, draining properly. Took an amp draw of the motor. Running within the manufacture’s specs. Placed the panels back in the unit and watched it run. Went outside to the condenser and watched it run. Checked the coils for any dirt build up. Removed the panel and brushed out any spider webs. Checked the contractor and capacitor. Both are running within the manufacture’s specs, but the capacitor is extremely rusted and should be repl