I didn't see a manual for 139.53930DM By accident, I knocked a sensor out of alignment and broke the wires. I repaired the wires and realigned the sensor, but the door will not go down automatically. I have to hold the button down on the wall switch for the door to go down. It requires 2 pushes of the button. The first time the light blinks on and off, then I release and hold the button to make the door go down. The opener will not recognize the wireless remote either.