Garage Door Opener Troubleshooting step by step

Venmo Tip Jar @AndrewDIY
If your garage door won't open, this video should really help...
How to Fix A Garage Door Opener - the opener shown is the Craftsman 1/2 HP 315 model, however many brands are nearly identical.

There's lots of things that can go wrong with a garage door opener. If you are having problems with it hopefully this video will give you some good clues as to what can be causing the problems:

First start with the obvious and easy to check problems...

Is there power on in the home?
Assuming yes,

When you push the main button to open the garage do the lights blink or come on at all?

is there anything blocking the path of the door, if it's open is there something in the way of the sensors like a spider web or are they misaligned?

Most sensors have an indicator light that tells you if they are working and the path is clear. If it's not your garage door lights should blink when you try and open it.

There is also the chain, which may occasionally break, although not often. This should be obvious to spot.

If the garage door labors to open but stops then you may have a broken torsion spring. They should look something like this... if they appear to be broken, be careful they are under a lot of tension and can seriously injure you. If you aren't handy call a garage door repair service, if you are handy be sure to really understand what you are about to undertake as injury is likely if you don't know what you're doing.

If the springs appear to be fine check the track on both sides of the door. If they appear bent or misaligned this may be a problem.

If the lights didn't blink then you may have a bad component in the opener.

If your main garage door opener button on the wall will open the garage door but not your remote or keypad, it may be just a bad battery that you can replace.

If your garage door makes a sound like it's going to try and open but fails, and the torsion springs are in tact you may have a bad capacitor.

Capacitors can also disable the motor entirely.

Unplug your opener before attempting to take it apart. A screwdriver or ¼" socket should be all you need.

Open the housing and inspect the components. If the gears appear stripped that's likely the cause. The motor can burn out but it's not a common occurrence.

Depending on the capacitor type it may be easy to diagnose, if there are abnormal bulges or it appears to be leaking then it's likely bad and needs to be replaced however the capacitor may appear to be fine and still be the problem.

Check the power board and the control board, you should remove them to inspect both sides. If either of them appear to have bulging capacitors or areas that have black charring or appear to have burned it has likely failed.

Most of the parts you need are available on several websites including eBay. Just be sure to verify with the seller before purchasing that it will fit your opener.

While this video covered some of the most common reasons for a non functioning garage door opener, hopefully this has provided you with at least a good starting point and checklist.

Thanks for watching & Good Luck!