Test and adjust blower components
Test and adjust operating pressures
Test in heat cycle
Test voltage of motors
Clean or replace filters
Clean condensate drain
Check expansion valve
Measure temperature difference
Clean and check condensing coil
Clean evaporator coil if accessible
Test AMP draws on motors
Test starting capabilities
Apply protective coating to outside unit
Lubricate necessary moving parts
Test and check safety controls
Calibrate thermostat
Check for proper air flow