Dwd-L142KC has a direct drive motor. A very common fault on this machine is that the drum shaft seal fails, letting water into the bearings which then starts to rust and then develope severe play between the drum and the tub. As the stator is mounted onto the tub and the rotor is mounted onto the drum shaft the rotor can then, due to the worn bearing, move too far away from the stator. Because the sensor that detects the actual speed of the motor is mounted onto the stator assembly, the control PCB then no longer gets the feedback signal from the sensor hence the motor not running correct. You'll most probably see the motor only moving in short bursts, a the missing feedback prevents it from accelerating further. A bearing and seal repair will in this case resolve this problem. It did on my machine. If the shaft is heavily worn below the shaft seal, this will need sorted in order to prevent the new seal from getting damaged or wearing out to soon
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