Washing equipment suddenly one-way operation how to return a responsibility

        Washing equipment at run time suddenly a one-way operation is going on? The same words will make washing machine can not be normal washing, what should I do?
        Really want to solve the fault, the main or to find out the reason, then to what are the causes of washing equipment one-way operation?
        As a general rule, the first is a two-way operation of washing machine motor, a lot of equipment in running after the electricity is positive running 25 seconds, and then reverse operation about 25 seconds, will stop after about 5 seconds, this is a correct cycle.Then will constantly cycle.Positive &negative is the control of the machine, so first of all need to look at is controller to have damaged, can use a multimeter test, if found damaged, you will need to replace the controller.
        Second: if the positive and negative phase controller after tests found no damage, it should be check place is to control the motor of ac frequency converter have damaged, also is to use multimeter test, did see the contactor coil voltage 220 v, if damaged, you can change for washing machine a contactor.