Have trouble programming. When I reset control the doors opens but when I close door, it stops and reverses, then the light blinks 10 times.

Observe the green receiver sensor while the door travels. If it blinks, then likely the optical sensor is causing the door to return to open and flash for 5 seconds.This could be caused by poor sensor alignment or a loose track or loose sensor mount or poor wire splice if not a single length.

You can check receiver sensor alignment by slowly moving your hand, open palm, towards the center of the receiver blocking the transmitter emitter mounted to the opposite track.

Check in two axis, front-back and top-bottom. If aligned properly, the green lamp will turn off as your hand reaches near equadistance to center of the receiver regardless of direction.

The only thing that will cause the main light to flash 10 times and the door to reverse to the open position is a sensor problem. Make sure the light on each sensor is on and not flickering ever so slightly. Make sure they are not moving when the door starts to close. Lights on sensors should not blink. One light should stay on constantly and the other sensors light should go off when you block the sensors.

Anytime the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. If the transmitting sensor light is blinking it is bad.

Check your door sensors closely. Sometimes one will be off just a bit and the light will be on but blinking ever so slightly. If the main light flashes 10 times when the door reverses it is definitely a door sensor problem. Nothing else will cause that.

If the main light flashes 10 times when the door reverses it is a door sensor problem. Each sensor has a small light that must be on and not blinking for them to work properly. If one of them is not on tweak them a bit to make sure they are pointed at one another.

The stopping about 1/3 of the way up is either a broken door spring, a main drive gear that is going bad or an adjustment to the 'up force'. The 'up force' control is on the back of the motor unit near where all those white wires go. Increase it a bit. It will sometimes compensate for a gear that is going bad but if this is the case it will start doing the same thing soon.

Anytime the main light flashes 10 times and the door reverses to the open position it is a door sensor problem or the wiring to them. Nothing else causes this symptom.

If the main light flashes 10 times when the door reverses it is a door sensor problem. Make sure they are pointed at one another and the small light on each one is lit and not blinking.

The only thing that will cause the main light to blink 10 times is a sensor problem. Sometimes the sensors will be misaligned just enough to turn the light on but will not work properly. If you look really close (on your knees) you can see the receiving sensor blinking ever so slightly. Tweak the sensors until the light glows constant.

# of flashes

1

2

3

4

5

6

Rapid Flashing





Problem

The Protector System wire open or totally misaligned

The Protector System wire shorted or black/white wire reversal

Door Control or Multi-Function control Panel wire shorted

IR sensor slightly misaligned (dim or flashing sensor LED)

Motor overheated/Possible RPM sensor failure -- unplug to reset

Motor circuit failure -- replace RX/LX board

Liftmaster transmitter with the correct format code being received
(opener not necessarily programmed to respond)

sounds like the safety door sensors are at fault,also did you reprogram the remotes by pressing the smart button on the logic board,when the safety sensors are bad the door will reverse to open state.you can pully the rip cord to manualy close the door untill you solve the problem.