You think that everything’s just fine, but all of a sudden you can’t open your garage door. Often, problems can be prevented with maintenance, but sometimes there is nothing you can do. The key thing is to deal with them as soon as they arise.
The most common cause of this problem is broken lift cable. The door starts hanging on one side and the roller leaves the track. It may go without saying, but you must not attempt to open the door in any way. The first step of the repair involves replacing the cable with a new one which has the same specs. If the track is bent, it has to be straightened. If it is broken, which is not likely to happen, it will require replacement.
Not surprisingly, the most common issues are with the hardware. The trolley can be broken. In this case, the motor will work, but the door will stay closed. If the motor makes weird noises and the door is stuck, the cause is most likely a broken moving gear. Naturally, replacing the broken part is the only solution to such problems. The spare part must have the same size and design as the original. Less often, the motor itself could malfunction. Replacement is typically the solution to this problem.
Is the door hard to open or to remain closed without locking? Then the torsion spring is to blame. In the first case, it has too little tension. In the second one, it has too much. The adjustment for increasing or reducing the tension has to be accurate for producing the best result. Damage to this widely used type of spring is actually not common. If there are deformed coils, the whole component should be replaced as soon as possible. If the spring is broken, changing it is the only solution.
These small components are attached to the panels with the help of hinges and guide the door along the tracks when it moves up and down. Sometimes, a stem can get twisted. When this happens, the whole roller has to be replaced. Eventually these components will wear out and will start to make popping sounds while the door is opening or closing. Again, replacement is the only solution.