Frequently Asked Questions and Troubleshooting Guide for Fresh Air Fans

A fresh air fan is a device that can provide fresh air indoors, but in daily use, there may be some problems that prevent the fresh air fan from working properly. Here are some common problems and solutions

1. The fresh air fan cannot start: First, check if the power socket has electricity and confirm if the power cord is in good contact. If the power supply is normal, it may be an internal fault of the fresh air fan. It is recommended to contact professional maintenance personnel for repair.

2. High noise from the fresh air fan: It may be caused by loose internal components or foreign objects entering the machine. You can try cleaning the filter or checking the fan blades. If the problem is still unresolved, it is recommended to contact after-sales service.

3. Decreased air volume of the fresh air fan: It may be due to blockage of the fan filter screen, and the filter needs to be cleaned in a timely manner. In addition, it is necessary to regularly check the ventilation port of the fresh air fan to ensure smooth air circulation.

4. Abnormal odor emitted by the fresh air fan: It may be due to the long-term uncleanliness of the filter screen leading to bacterial growth. It is recommended to regularly clean the filter screen. Additionally, some deodorizers can be added to improve indoor air quality.

The above are answers to some common questions about fresh air fans, hoping to provide assistance to users when encountering problems during the use of fresh air fans. If the above methods cannot solve the problem, it is recommended to consult professional maintenance personnel or contact the after-sales service hotline of the fresh air fan brand.