/diy/ - Do It Yourself

>>1660798
>can you show what's on the other end of J1's (ribbon?) cable?
My car's in the way and the ladder is put away but here's the diagram. That cable is for all the inputs, switches and sensors.

The problem the opener had was it would randomly stop or reverse as if one of the stop sensors is being tripped. It started happening once every activation or so with the door getting partially open, but got worse and worse until now, it stops within 1 second of the button being pushed.

I don't think there's any significant hardware at the other end of any of those J1 wires, just low voltage switches and sensors. I have no idea what J2's "Sensor Board" is, it's attached to the gear train next to the motor's capacitor. Maybe it's to sense unwanted movement, RPMs or torque.

J3, the big white wire bank, goes to the motor.