1. CHECK AIR FILTERS AND REPLACE IF NEEDED
2. CHECK RETURN DUCK AND FACE OF THE COOLING COIL IF VISIBLE
3. CHECK AIR AT VENTS AND REGISTERS
4. CHECK SYSTEM TEMPERATURE AT RETURN/SUPPLY
5. CHECK THERMOSTAT CALIBRATE AND OPERATION
6. CHECK DUCT FOR AIR LEAKS
7. CHECK DUCT FOR MISSING INSULATION
8. CHECK COOLING COIL DRAIN PAN FOR DIRT, RUST OR BLOCKAGE
9. CHECK DRAIN PAN LINES FOR BLOCKAGE AND LEAKS
10. CHECK COOLING COIL MOTOR ELECTRICAL CIRCUITS
11. CHECK COOLING BLOWER WHEEL FOR DIRT BUILD UP
12. CHECK COOLING BLOWER MOTOR VOLTAGE AND AMPERAGE DRAW
13. CHECK MICROFARADS LIMITS ON ALL CAPACITORS
14. CHECK COMPRESSOR DISCONNECT BOX AND FUSES
15. CHECK ALL COMPRESSOR FOR PITTING, BURNING AND WEAR 16. CHECK COMPRESSOR WIRING TIGHTEN CONNECTIONS IF NEEDED
17. CHECK COMPRESSOR FAN MOTOR VOLTAGE AND AMPERAGE DRAW
18. CHECK COMPRESSOR MOUNTS TIGHTEN IF NEEDED
19. CHECK COMPRESSOR MOTOR VOLTAGE AND AMPERAGE DRAW 20. CHECK REFRIGERANT LEVEL
21. CHECK COMPRESSOR SUCTION PRESSURE
22. CHECK COMPRESSOR SUCTION TEMPERATURE
23. CHECK COMPRESSOR LIQUID PRESSURE
24. CHECK COMPRESSOR LIQUID TEMPERATURE