First, make sure your transmitter isn’t stuck under something that could be pressing on the button. For example, your transmitter may have fallen under your car seat and the button is accidentally being pushed by something heavy rolling around on your floor. If that’s not the case, you may also need to check your transmitter’s frequency. It’s possible your neighbors could be running their garage doors on the same frequency as yours, and as they drive by, they’re opening their garage door along with yours.
Step 2: Check the tracks with a level to make sure they're properly aligned. Horizontal tracks should slant slightly down toward the back of the garage; with roll-up doors, the vertical sections of track should be exactly plumb. Both tracks must be at the same height on the garage walls. If the tracks are not properly aligned, loosen but do not remove the screws or bolts that hold the mounting brackets, and tap the tracks carefully into position. Recheck the tracks with the level to make sure they're in the right position; then tighten the screws or bolts at the mounting brackets.
Sears Craftsman Garage Door Openers are America’s favorite. We have several options to choose from that will fit your individual needs. Sears garage door opener selections includes 1/2 horsepower, 3/4 horsepower, belt and chain drive as well as the Craftsman Smart Control garage door opener which allows you to control and monitor your garage door even when you are away from home. https://m.youtube.com/v/Z_eZc-kh40c
Often companies will show different types of springs like oil dipped, galvanized or powder coated and try to convince you that one is longer life than the other and that is why it is going to cost this much instead of that much. Galvanized and Powder coated are great for coastal areas as a rust preventative but do not change the cycle life and do not cost but a few dollars more.
Your dream car is parked in out of the elements, but it's not secure because the garage door won't lock. Most garage doors have two horizontal bars that move out from the center of the door into slots along the side of the door in the door track, effectively locking the door in place. Over time, these bars can shift slightly out of position so that they are no longer correctly aligned with the locking slots. To realign the bars, unscrew the guide brackets on the edges of the door so that they are loose enough to move, and then reposition them so that they smoothly guide the locking bars into the locking slots. Lubricate the lock mechanism with machine oil and you're done.
With over 300 independently moving parts, your garage door is a deceptively complex piece of equipment. To help prevent malfunctions and break-downs, it is a good idea to occasionally perform a garage door tune-up to keep all of these parts in good working order. A regular tune-up service by a Sears professional can prevent unexpected door problems and prolong the life of your existing equipment. http://m.youtu.be/Z_eZc-kh40c