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How to deal with plastic fan impeller does not turn?
Turn on the power and gently press the plastic fan housing with your hand. Assuming there is a small vibration, the coil should be no problem. The factor is that the rotor is stuck. After cutting off the power, open the back cover of the fan and add a small amount of lubricating oil (such as sewing machine oil, etc.) to the shaft sleeves at both ends of the rotor.), Drip the leaves until the fan leaves become sensitive, which can remove the failure of the plastic fan. Assuming that the manual tap fan has no power, there may be no 220V communication input or coil damage. At this time, the power supply should be blocked, the wires at both ends of the fan and the power cords at both ends of the power cord should be blocked. Assuming that one end is bright and the other end is not bright, it means that the power supply line is normal, and the fan coil may be damaged. Assuming that the pen measures bright or not bright at both ends, it indicates that there is an objection to the power supply line. Of course, it is more convenient to measure with a multimeter. Measure two plastic fans directly with a multimeter. The resistance of a normal coil is about 400. Assuming that the resistance ratio or the surface needle does not move, it means that the coil is damaged. The fan impeller remains stationary. Except for 220V input, it is usually caused by rotor or winding damage.
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