Air conditioner making unusual noise

What does Unusual noise mean?

The air conditioner unit is producing abnormal sounds during operation, such as rattling, humming, or squealing. This indicates a potential issue that requires investigation.

• Loose mounting or fittings of the indoor or outdoor unit.
• Vibrations from pipes or other internal components.
• Foreign objects caught within the unit or fan assembly.
• Incorrect installation or refrigerant charge.

Click steps to track your progress.

1. 1

   Listen carefully to identify the type and approximate source of the noise.

2. 2

   Check if both the indoor and outdoor units are securely fixed and mounted in place.

3. 3

   Inspect the linesets and connecting wirings to ensure they are firmly inserted and fixed, reducing potential vibrations.

4. 4

   Turn off the unit at the circuit breaker and visually inspect for any loose parts or foreign objects near the fan or coils.

5. 5

   If the unusual noise persists after these checks, contact a qualified technician for further diagnosis and repair.