AC 15-Point Checklist

  1. Thermostat Operations - Check settings, display, and temperature accuracy.
  2. Power Supply - Inspect breaker, disconnect, and electrical connections
  3. Air Filter - Clean or replace if dirty
  4. Indoor Evaporator Coil - Check for dirt, icing, or damage
  5. Outdoor Condenser Coil - Clean debris, dust and buildup
  6. Refrigerant Level - Verify charge is correct, check for leaks
  7. Compressor Condition - Inspect operation and unusual noise / vibration
  8. Condenser Fan Motor - Check running condition and blade balance
  9. Blower Motor - Inspect airflow and motor performance
  10. Capacitor and Contactor - Test condition and proper function
  11. Drain Line and Drain Pan - Clear blockages and check for leaks
  12. Ductwork - Inspect for leaks, loose joints, or airflow restrictions
  13. Airflow at vents - Confirm even cooling and proper circulation
  14. Temperature Split - Measure return vs. supply air temperature
  15. Overall System Performance - Check cooling cycle, noise, and efficiency

Heating 15-Point Checklist

  1. Filter Inspection & Cleaning / Replacement
  2. Thermostat Calibration & Testing
  3. System Settings / Control Review
  4. Blower Motor & Airflow Testing
  5. Burner Cleaning & Inspection
  6. Electrical Connections / Wiring Inspection
  7. Carbon Monoxide (CO) testing / Safety Checks
  8. Heat Exchanger Inspection
  9. Safety Switches / Shut-Offs Testing
  10. Ignition / Pilot System Check
  11. Condensate Drain / Trap inspection & Clearing
  12. Lubrication of Moving Parts
  13. Performance Measurement & Diagnostic Readings
  14. Proper Cycling Verification
  15. Written Report & Recommendations

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