Fan does not turn maintenance

1, often caused by bathroom window fan blades do not turn the reasons, are poor maintenance problems. If you turn off the power after the hand to move the fan blade rotation stiffness, you should use some lubricants into the shaft, so that it can be lubricated, it will not affect the motive drag the fan.
2, for the wear caused by the bathroom ceiling fans does not rotate, the most simple or replacement parts, especially the sleeve, if easy to burn after wear and tear.
3, if the capacitance becomes smaller cause the bathroom ventilating fans does not turn, you can remove the capacitor, for a new type of capacitor, the proposed choice than the original capacitor 20%, there will be a better rotation effect.
4, shaft axial gap is too large problem, you can choose to remove the motor after the adjustment of gasket. But remember that when the motor is installed back, pay attention to the rotor must be concentric with the bearing, lubrication screw slowly twist the twist, and finally knock on the shaft with a wooden shaft to ensure that it concentric.
5, if it is because of electrical failure, you can check the wiring of the lines, and sometimes wire damage, etc., can repair the problem.