Travel Limit Switch Garage Door

Step 2 making the adjustments.

Travel limit switch garage door.

If your garage door does not close completely or closes and then starts to move up the travel limit switch issue may be the cause. The contact metals for both the limit switches and light sockets are flimsy and tarnish very easily. To start with you need to identify the kind of limit switches your door has. Open the garage door and watch it closely as it opens.

For example the liftmaster 41a6408 absolute encoder travel module is only compatible with liftmaster 3800p and 3800pld garage door operators. Adjusting garage door limit switches can be done easily with a few tools. The limit switches control the travel of the door. The sooner the better as this situation may cause serious safety issues.

Read the descriptions included with each part to learn if the replacement limit switch and travel module assemblies are compatible with several brands and models or only a few. Once you locate the limit switch take your flat head screwdriver and start turning the knobs. The limit switch contacts and the light sockets for that matter are made of very cheap materials on my 2003 chamberlain garage door opener. I ve been told they are cheap on all their models.

Next test the garage door with the help of another person by opening and closing it. When the door does not close all the way the limit switch may be responsible.