Blower suddenly do not turn how is it?
This is a lot of reasons, generally encountered a similar problem, a maintenance electrician first do the following check:
2: Check whether the blower is hot super-current (see whether the motor thermal protection), check the insulation and cold fan is faulty.
1: 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.
3: 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.
