Ben Chuanlong Du's Blog

It is never too late to learn.

Maintain Garage Doors

Things on this page are fragmentary and immature notes/thoughts of the author. Please read with your own judgement!

How To Lube A Garage Door

Garage Door Lubricant

Garage Door Opens But Won't Close

  1. clean sensors
  2. try to align sensors

make sure that sensors show solid green lights

check trails …