IF the wire that is bad is NOT the Red and black(motor wires), you can disconnect THAT motor from the controller supply 12 volt and ground to the Red and Black and operate the motor. IF the Red and Black are the bad wires, you disconnect each motor plug from the control and then use BRUTE strength to push the room out (3 or 4 people). IF you can put the controller in ovveride, then use the controller to operate the GOOD motor and with the bad motor harness disconnected from the controller then just manually push that end. Doug