- Check condenser coil and clean
- Inspect automatic blower control
- Check operating pressures for refrigerant
- Check thermostat calibration
- Check safety control where applicable
- Check all electrical connections
- Check voltage and amperage on motor
- Clean condensate drain
- Add drain treatment for algaecide
- Lubricate all moving parts as needed
- Check for correct air flow
- Check starting capabilities
- Oil and check the fan motor bearings where applicable
- Check exposed duct work
- Safety check of low voltage wiring
- Check drain pan