HVAC Preliminary Checks: Notes

If you suspect a problem in the refrigerant system, inspect for the following conditions:

1. Inspect the outer surfaces of the radiator and the condenser cores to be sure that the airflow is not blocked by dirt, leaves, or other foreign material. Inspect between the condenser and the radiator, as well as all outer surfaces.
2. Inspect for restrictions or kinks in the condenser core, the hoses, and the tubes.
3. Inspect the operation of the blower fan.
4. Inspect all the air ducts for leaks or restrictions. A low airflow rate may indicate a restricted evaporator core.
5. Inspect for slippage of the compressor clutch.
6. Inspect the tension on the serpentine accessory drive belt.