Do not ignore weak cooling
Warm air, weak airflow, unusual compressor noise, and inconsistent cooling are common warning signs. The cause may be low refrigerant, a blocked filter, electrical trouble, or a component fault.
An inspection identifies the cause before more parts are affected. AC systems should be diagnosed rather than refilled repeatedly without finding leaks.
- Warm air from the vents
- Weak airflow at any fan speed
- Unusual clicking or rattling
- Unpleasant smell when AC starts