My door closes fine, but when opening, it only

You may need to adjust the springs. If the door is too heavy, the opener won't lift it. Every garage door has springs to counter the weight of the door. These springs need to be adjusted so the opener can open and close the door. Try for one-hand easy to open...

does the door have a sensor strip in it so when the door hits something coming down it stops and goes up maybe something stuck to pad? just a thought

Generally when the door is closing any problem will cause the door to reverse to the open position and stop. This is designed into it. You say your opener just stops when going up or down. This makes me think there is a bad connection somewhere and you are simply losing power. If this is so you should notice that all the small lights that are normally on go out. If this only occurs when the door is going up you may have a bad RPM sensor board. This is a small printed circuit board just in front of the motor.

If the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. Make sure the lights on the sensors are both on and not flickering. Tweak them if necessary. If you cannot get both lights to come on you have bad sensors or the wiring to them.

Remove the cover from the motor unit and check the drive gear. It is most likely stripped.

Broken door spring.

Remove the cover and check the drive gear. It is white nylon and is just in front of the motor. It may be stripped. Take a close look at those door springs. They can sometime appear to be okay when one is broken.

It sounds like the door springs may be mis-adjusted. Release the doors from the opener and try raising and lowering them manually. They should not try to rise on their own.

Broken wire in harness on door when you open the Door you'll see a bunch of wires encased in plastic.I fixed mine. You need a soldering iron, extra wire, flux, electical tape and patients to fix this. Find the broken wires, Splice, solder and tape. Replacing
harness no way!














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I would try jumping a wire across the white & red terminal to see if your safety sensors are working Properly! If your door opens you have a loose connection or faulty sensors.