The 2 must-have reversal systems on your LiftMaster Chamberlain garage door opener
- The 1st one is mechanical: if the bottom section of a descending door hits an object, the motor detects the resistance and the door reverses.
- The 2nd one is photoelectric: it consists of 2 units installed about 6 inches from the floor, on each side of the door. One unit emits an infrared beam, invisible to the naked eye. The other unit is a receiver. If something breaks the beam while the door is closing, the opener motor automatically stops and then reverses direction and opens the door.
These little girls are having so much fun they forget about safety. Even though their parents keep repeating themselves. How strange, how unusual, wouldn’t you say? Thanks to the garage door opener photocell safety beams, when the big sister breaks the beam while entering the garage as the garage is closing, the garage door opener stops on spot and change its direction to open the door. No injuries. No drama. Just kids being kids. You’ve got to love technology!
Not convinced you need to replace your garage door upgrade yet? Learn more about photocell safety beams and learn which urban legend about planes opening garage doors has been proven to be true.
Your LiftMaster Chamberlain garage door opener was made after 1993? So, you’re feeling relief right now and you’re already thinking about the guitar you will buy since you don’t have to invest in this so much adult stuff.
Well sorry to burst your bubble and ruin your guitar plan. But 2012 was another milestone year you really should be aware of.
To make sure your garage door opener has rolling code technology, look for the label on your Chamberlain, LiftMaster or Craftsman garage door opener.
Since 2012, Chamberlain’s garage door openers have had another great innovation, Security+2.0. This rolling code technology protects your house against intruders by generating a new security code every time you use your remote control to open and close your garage door.
A unique algorithm "rolls" the remote control's code to one of more than 100 billion possible codes after each use. The previous code will be rejected, and the opener will only respond to the new code. Since the same code cannot be used more than once, stolen remote controls are therefore useless to intruders.
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