Liftmaster 973LM Security+ Chamberlain Garage Door Opener.

There are sometimes two different tags on Liftmaster Chamberlain brand openers one is for the model number and serial number and the other would be the part number for the logic board or receiver board.

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Almost always will be found behind the lht cover.

<strong>Chamberlain</strong> Garage Door Opener Troubleshooting How To.

Chamberlain Garage Door Opener Manuals - Chamberlain

The first thing you will need to do before you buy an extra remote or keypad from a retail hardware store is to locate the manufacture date stamped on your opener.

Chamberlain Garage Door Opener Troubleshooting How To.

The easiest way to tell the difference is that the receiver board or control panel will have a FCC number on it and this is for the Federal Communications Commission.


Chamberlain liftmaster 1255r manual:

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