Heating and Air Conditioning: Testing and Inspection

TROUBLESHOOTING

Part 1:

Part 2:

PROBLEM SYMPTOMS TABLE
Before replacing or repairing air conditioning components, first determine if the malfunction is due to the refrigerant change, air flow or compressor.
Use the table above to help you find the cause of the problem. The numbers indicate the priority of the likely cause of the problem. Check each part in order. If necessary replace three parts.
After correcting the malfunction, check the complete system to ensure that performance is satisfactory.