My mom's automatic garage door was fine for years, then started slamming down with enough force to cause fatal injuries. The owner of the home is my brother and he has his own key but doesn't live here. He claims the adjustments (which need a flathead screwdriver to adjust) simply moved on their own causing the thing to damage the car and almost injure us...can this happen? It never did before. Help.
sounds like one of the lift cables is loose or snapped. that door weighs quite a bit, with out that cable, you are going to hear some noise. the flat head would adjust the travel limits on the door. where it starts and stops, nothing else.
I'd suspect that the springs that support/counterweight the door have weakened with age. The opener doesn't have much to do with how hard the door comes down. You can set how much force is applied before the door reverses but even the most powerful garage door opener doesn't really apply lethal force. Try disconnecting the door from the opener. It has a release to allow opening the door in the event of a power failure. It should be possible to open the door with your fingertips if the springs are OK.
massive city and Leslie S have lined the bases especially plenty. a million- First attempt and open the distant, there must be numerous tiny switches interior with numbers on them. (mine had 0 via 9). 2-Get a step ladder and open the plastic conceal on the lower back of the opener motor itself. (ought to have the comparable style and style of switches) 3- checklist the settings and then set the two to the comparable mixture yet distinctive from the numbers you have written down. occasion: previous placing a million-2-3 exchange them to 2-3-4 on the two the distant and the storage opener (they must be the comparable) 4- attempt it and it is going to artwork. (close each and every thing up and you're performed). 5- If the concern is the cut back swap, the door would think of it has hit an impediment and reopen as that's desperate too mushy. There are are 2 around knobs on the opener motor case that adjusts this sensitivity (a million for the down - close place and a million for the open place. A- lower back, you will want a stepladder and have the distant in you hand. Do it in the time of the sunlight hours or you will want gentle. ultimate theory, ask a chum to help who has in simple terms a splash adventure. those are ornery critters, troublesome and not in any respect beginner friendly.
After years of use most if not all garage door need adjustements.... no big deal, just adjust it or call someone who works on the openers to adjust it for you.
If it's slamming down hard enough to damage a car it is not the opener. You either have a broken or detached spring on the side of the door. WARNING!! DO NOT ATTEMPT TO SERVICE THE SPRINGS YOURSELF!!! They are under high tension and can cause severe injury or death.
