Electric door is to be able to open electricity is not how the matter ah
The torque is too big, or is the reverse of the relay problem
First check whether there is electricity, and then no-load operation, and then can be preliminary: no-load operation that electric and motor no problem, the rest is a mechanical problem
The mechanical problem may be that the trip switch is broken or the torque is too large, or the relay is reversed.
Contact the professional for repair.
