Garage Door Reopening
 

Second time this past week, my garage door is messed up. I would park my car in the garage and close the garage door, but half way coming down, it would go back up.

Typically if there's obstruction then it would make sense to go back up, but there's nothing obstructing the way. One of the days, I had to keep pressing my garage door switch, after 7-8 times before it actually closed. Today, I tried a few times and then I pressed the garage door switch and held it in until it closed.

Anyone know what the heck is going on or wrong? Any pointers?

Your sensors might be misaligned.

If you are pressed down on the garage door switch you are actually overriding the safety feature.

I used this guy before, he seems to be pretty good.

http://www.canyonspringsoverheaddoor.com/

ya sometimes it happens to me its something about the sun shining down on the sensors or something..i just block the sun from where the sensors are and it closes

Um this happened to me a few days ago. Try decreasing the safety sensitiviy by turning the knob that is
on the motor
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I've had this problem a few weeks ago and I thought it was the sensors too. However, I took a wild guess and thought that maybe it's the hinges, wheels, or the track that's causing too much friction so that the sensors think that something is caught under the garage door, causing it to re-open. I sprayed every hinge, every wheel, and the tracks with WD40 and what do you know... problem solved! :D

u might have a ghost

Dust can also mess with it. Clean the sensors with a cloth or something.

its your sensors

my garage is kinda weird like that too. it drops and when it hits the ground sometimes it starts going up again, it gets quite hectic. but this shit only happens once in awhile, and when it happens, its for small periods of time. ( not just once but consecutively 10 times or something so homo )

the sensors. this happened to me yesterday, just went back in and unplugged the wires that go into both sensors, and replugged it. all fixed.

Try adding some weight to the garage door. It's prob caused from the cold. Does this happen in the summer?

Try guiding it down, if you guide it down and it closes with no problems, it might not be the sensor.

Seems like, the majority say it's a sensor issue. I shall take a look into it tmr.

This only started happening this past week, no issues at all during summer time.

It's most likely due to the cold weather.

Release the door from the garage door opener and manually close the door. Be careful when it gets close to half way down. It might just drop on you. Best to have help. Find where it is binding and adjust the tracks. Use wax or the stuff that is recommended. Oil or WD-40 just attracts dirt and dust over time - might work temporarily but......... It may not need adjusting via track and the wax might do the trick, but see how bad it is first.

With the temperature getting colder, everything changes. Frame or track shifts/warps, etc.

+1
definitely not the motor

This happened to me too just before it died on me and I had to replace the whole unit. You could also try adjusting the amount of force on the motor.

Depending on how old the garage opener is, the sensor can be different things altogether. My old house had the conventional opener where the sensors meant the amount of force the door goes up/down and how it detected obstacles. If your unit is like this, you enlist the help of the neighbourhood asshole kid or your least favourite nephew and see if the door stops or crushes him. The volume of the screams will give you an idea how much is enough. LOL.

The newer garage door openers have sensors that detect anything in its path. The sensors are usually placed about 6 inches off the ground. If anything is there, the garage door does not even start to close. The lights usually blink, too. So, if the garage opener is the kind with sensors near the garage floor, the door stopping half way means something just interupts the beams and stops the door. Could be a wire or something hanging from the garage door that interrupts the sensors' beam.

I still think the door is getting caught on the track or rubbing up against the door trim. Increasing the power to the motor might cause damage to the motor, in which case you'll just end up getting a new opener. It's like putting a higher rated fuse in an electrical device to make it work. One day, you'll kill it for good.

With temperature being so cold the last few days, it's most likely things are out of alignment. Perhaps it's the springs on the garage door (door balance) being stiffer and not countering the weight of the door properly. Pehaps the track that the chain travels along is bent or kinked. Either way, releasing the garage door opener from the garage door itself is the best way to see how much force is needed to open/close the door.

To release the door from the opener, pull on the rope that is attached to the arm (right down the centre and usually has a t-handle attached to it). Actually, read the manual. To reattach, just open and close the garage opener and the arm will snap back into place.

Its also sometimes the internal board for the sensors and not the sensors itself as explained to me when I was servicing my own garage door.
VERY COMMONLY its the sensors, but if the sensors are good. then its the internal board which is costly.

I bought a new pair of sensors for about $40 and replaced them
But on other garage doors I've had to replace the board about $200.

Thanks everyone for the help. I managed to fix the issue now. Fucking sensor wasn't aligned properly. After aligning it, problem solved.

My old garage, was the conventional kind. It was quite messed up too. It would open randomly for no apparent reason. Good thing my neighbourhood was safe, or else I'd be screwed haha.