Any electrical appliance has a lifespan and requires regular maintenance; if it breaks, it needs to be repaired. As a major household appliance, air conditioners require proper maintenance even more. When not in use, you can cover the air conditioner unit with a protective shield to prevent damage from harsh weather. The material of the shield is also waterproof and dustproof. During thunderstorms, do not turn on the air conditioner to avoid damage. If the air conditioner malfunctions, check the cause of the fault before taking the appropriate repair measures. Next, follow the editor of Suqian Central Air Conditioning Maintenance Company to learn more about detailed knowledge of central air conditioning maintenance and repair.

1. The machine's dew point temperature is normal or slightly low, resulting in slow indoor cooling.

① Airflow is below the design value, with fewer air exchanges. Please check if the fan model meets the design requirements, if the impeller direction is correct, if the belt is loose, and open the air supply valve wider to eliminate the factors causing insufficient airflow.

② The system has a secondary return air feature, but the secondary return air volume is excessive. Please adjust and reduce the secondary return air volume.

Please adjust the air conditioning system to ensure even distribution of air volume among the rooms.

2. System's actual airflow exceeds the designed airflow.

The actual system resistance is less than the designed resistance, resulting in increased air volume for the fan, and the fan speed can be adjusted under certain conditions.

Please adjust the air volume control valve to a lower setting to reduce the air volume, as the fan capacity selected during design is oversized.

3. The actual measured airflow is less than the designed airflow.

① The actual resistance of the system exceeds the designed resistance, resulting in reduced air volume of the fan. Under permissible conditions, improve the components of the air duct to reduce the system resistance.

② There is a system blockage, please check and clear any potential obstructions within the system.