Liftmaster 3800W jackshaft won't unlock

Sometimes the lock will not deploy, just hums for 2-3 seconds. Other times the lock does deploy but will not unlock when I next try to open the door, which requires me to gain access to the building and manually unlock the door?

If your knob or handle has a button to press as a closure, what you have to do from the outside is locate the small hole that you will find in the center of the outer door knob. It is in this little hole where you will have to insert a rigid pin, although any other similar instrument would do.

Manufacturers usually include a latch release pin when you buy the door kit, but if you don't have it, look tiktok video saver apk, have lost it, or think it's going to take a long time to locate it, you can also use a large paper clip, screwdriver small or even a fine nail; anything long and stiff enough could work.

cody 1995

Visually inspect the automatic garage door lock for the following items:

1. check the termination end of the devices wire on the operator head to ensure it is fully seated in the socket (there may also be a second socket to use)

2. check the wire for kinks, sharp bends or a staple driven thru the wires

3. manually operate the automatic lock with its manual release to ensure it doesn't bind its deadbolt where it passes thru the door track
    (The solenoid on the automatic lock isn't strong enough to overcome binding or minor obstructions.)

4. if the automatic lock deadbolt does not line up with the hole in the track because it is too far up or down and there is plenty of room side-to-side , your travel on the door may need to be adjusted  so that it lines up

5. if the problem is binding side to side, you may need to loosen the bolts on the automatic lock and realign it to the opening

6. teto10 - you're an idiot 

Hope this helps