Why the blower suddenly does not turn?
Check the above are normal circumstances, closing the power supply, check the blower current to see if more than the rated current to determine whether there is equipment problems.
Check the above are normal circumstances, close to see the soft start or inverter equipment, then check whether there is a display alarm number, according to the alarm content investigation
Check if the blower is hot super-current (see if the motor thermal protection), check the insulation and the cold fan is faulty
First check the power supply cabinet, three-phase check whether there is power, whether the lack of phase, including the basic out of the gate, check whether the thermal relay action.
Check the above are normal circumstances, you can ask the relevant management personnel, the factory there is a phenomenon in the power flash.