The manual idle dial works well, but when the unit is turned on, the manual dial seems stuck. This is because the gap between the rotor and the bearing widens after prolonged use when the device is turned on. turned on, gravity will be generated, causing the rotor to move backward, hit the stator and get stuck, so it cannot rotate. Or the sleeve is too loose and see if the front and rear clearance is too big. You can add a washer to the shaft. You can disassemble and install it first to try.
When the power is on, turn the fan blade by hand to see if this happens: hold the fan blade and turn it to the left, then release it. At this time, the fan direction is. also turning to the left. Turn the fan blades to the right and then release them. At this time, the fan will continue to rotate to the right. In this casecoil is defective. Otherwise, the capacitor is defective!