a. In case of abnormal sound, serious heating of the motor, electrification of the shell, tripping of the switch and failure to start during the operation of the fan, the fan shall be shut down immediately for inspection.
b. In order to ensure the safety, it is not allowed to carry out maintenance during the operation of the fan. After the maintenance, the fan shall be put into trial operation for about five minutes, and the fan shall be started again after confirming that there is no abnormal phenomenon.
c. The fan should be stored in a dry environment to prevent the motor from getting damp. When the fan is stored in the open air, there should be defensive measures.
d. In the process of storage and handling, the fan should be prevented from bumping to avoid damage to the fan.
e. The use environment should always be kept clean, the surface of the fan should be kept clean, the air inlet and outlet should be free of debris, and the dust and other debris in the fan and pipe should be removed regularly.