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INSTRUCTION MANUAL
AIRFREE SERIES
9. Repair and maintenance
Our product design is maintenance-free, but in order to ensure the fan's long life and normal operation, the fan should also be
maintained, especially for applications in harsh environments. For any maintenance on the fan or inverter controller, please
make sure that the fan stops running and cut off the power supply of the controller to protect personnel.
Time interval -Recommended maintenance work content
Trial run -Check the fan for abnormal running sound or vibration
Every 2500 hours of work -Frequency conversion controller dust removal
-Fan blade dust removal
Every 5000 hours of work -Check mechanical fasteners to ensure that there is no looseness
-Check the wire cable to make sure there is no damage
If the fan produces severe noise or vibration during abnormal operation, it indicates that a mechanical part is damaged. At this
time, it should be shut down immediately and a thorough inspection should be done.
Product warranty
Product warranty period: 24 months. For failures that occur during the warranty period, please do not try to solve it by yourself.
Our company can send professional and technical personnel to provide free technical support. But the following are paid
services:
* Failure caused by incorrect use of your company.
* Occasions where a malfunction occurs due to your company's privately modifying the company's products.
* Occasions where failures are caused by natural disasters and fires.
* When the warranty period is exceeded.
* Other occasions where failures are caused by reasons that are not our company's responsibility.
The above-mentioned services are limited to mainland China, and the Shanghai company does not accept fault diagnosis and
handling abroad. If customers want to provide foreign after-sales service, they need to sign a paid foreign service contract. This
product is produced under strict quality management, and each set of products has passed strict testing procedures before
leaving the factory.
When used in occasions where a major accident or loss will occur due to a product failure, please configure relevant safety
measures.
