Screeching is the most obvious signal that your garage door can give you to let you know that something is not quite right. Now, of course your garage door opener is going to make some noise as it opens and closes. Anything that large that uses that many complicated moving parts is going to make some noises every time it is used. You have become accustomed to these sounds. What you want to be listening for is loud screeching or clanking that is not part of these routine sounds. These changes in the sounds mean that something in the process has come out of alignment and needs some attention.
If your doors are now a little bit tilted, then this is a sign that something very wrong has happened to your system. It might still open and close without causing a fuss, but this tilted angle means that it has come out of alignment. There are a few things that can cause this to occur, none of which are good news. There can be a problem with the doors, the tracks, and even the sensors that can cause something like this to happen.
Slower Opening and Closing Time
After a few weeks, you should know full well how long it takes for your garage door to open and close. If you start to notice that it is taking longer and longer for the doors to open and close, then this is a clear signal that something is not right with the motor. Sometimes the repair can be as simple as cleaning and lubricating it. The best option for you if you notice this kind of issue is to call in the professionals to service the motor as soon as possible.
If you motor is running well, then you shouldn't ever really smell anything. If you start to notice a burning rubber smell or a metallic smell, then this could be a sign that there are parts rubbing together that really shouldn't be. Some lubrication or some adjustments to the alignment can nip this issue in the bud if it is caught and serviced soon enough.
Battered Weather Stripping
The rubber weather stripping at the bottom of your garage door plays a much more important purpose than a lot of people realize. If this stripping gets damaged, it needs to be repaired or replaced as soon as possible. Having this damaged can mess with the alignment, will frustrate the sensors, and can cause some strain to the framing of the door as it will not have this cushion to hold up the weight of the door.