1. Excessive system resistance or unreasonable selection of FRP fan may cause the motor to run under excessive load, and the valve of pipe network resistance coefficient is too large or pipe coefficient is not open.

2. motor bearing damage, suitable gap is small, not requirements.

3. the motor is out of phase operation or wiring is not correct.

4. The power supply voltage of FRP fan is too low.

The above is to introduce to you about the end of the FRP fan heating, we only know the end of the fan heating can "adjust measures to local conditions", develop appropriate solutions.