Why the Air Conditioner Louver Motor Isn’t Working and How to Fix It

Common symptoms of louver motor failure

The louver motor is responsible for air direction control. When it fails, airflow becomes uneven and the unit's performance suffers.

1. Louvers don’t open when the unit starts

This may indicate a faulty motor or damaged gear mechanism.

2. Louvers move unevenly or make noise

Jerky or noisy motion may result from dirt, wear, or lack of lubrication.

3. Error code on display (PCB indicator)

Many AC units show error codes related to louver motor issues, helping with quick diagnostics.

Top causes of malfunction

• Worn-out motor or gear system
• Moisture or corroded connectors
• Faulty PCB board
• Obstructed louver mechanism

How to fix the issue

Start by checking the control signal from the PCB. Remove any mechanical obstructions and replace the motor if needed. Always use original spare parts to ensure durability.

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