u/kreepybanana

Original Problem: Garage door would not open & sensor was blinking red.

Solution: Replaced sensors, garage door opened as normal.

New Problem: Garage door won't close.

It will move a few inches then jerk to a stop when coming down. I've tried this from the fully open position and with the door a foot or two off the ground, same result. Lights are on and solid on new sensors.

After inspecting the door & tracks I noticed:

• This left side roller is out of alignment.
• Most of the bolts holding the roller brackets in were loose on the left side, especially on the out of alignment roller. I tightened a lot of them but others felt like they just kept spinning.
• There is a gap between these two track piece right before the curve starts on the right side.
• Other than the photo I included, I didn't see anything particularly wrong with the tracks, but I also don't know what I'd be looking for.

Opener is a Genie Intellicode if it's relevant.

I think my next step is to replace this roller.... but I've never worked on or done any kind of trouble shooting on a garage door and a bit out of my element.

Are there other things I should be checking?