Automatic doors can only open the reasons can not be closed
First look at the sensor within the scope of whether there are objects, so that induction radar to the object.
Second check the door under the various parts of the door can work properly.
Finally, view the next line, excluding the signal transmission caused by the error.
If the motor can be opened, indicating that the motor is no problem. The problem may occur on the controller. Controller is issued by the circuit board to change the direction of DC positive and negative direction to change the motor steering, in order to make the door run switch action.
Most of this situation is generally a problem with the circuit board, different manufacturers in this circuit board to write the program is not the same.Therefore, after the failure of the circuit board is determined, it is best to contact the supplier to solve the problem (own solution Success rate is very small).