This page has a collection of information that will be helpful in fixing your garage door and door opener.
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Liftmaster / Chamberlain Info:
Liftmaster and Chamberlain
are manufactured by the same company and share almost all parts (gears, remotes, safety photo sensors, etc...).
Download Liftmaster Opener Manuals:
Download Chamberlain Opener Manuals:
For Liftmaster Circuit Board Information go to this page:
Chamberlain / Liftmaster Model Numbers:
Click Here to download a diagram
that will show where the label is located with the opener model number.
Chamberlain / Liftmaster Logic Board Fault Codes: The Learn Indicator
LED light on the main circuit board will flash a code that indicates the source
of the problem. Below is a chart that explains what the codes mean.
|Number of Flashes on Learn Indicator LED
||The Protector System wire is broken, or the photo cells are totally
||The Protector System wire is shorted, or the black / white wire is
||Door / Wall Control button is shorted.
||IR sensor slightly misaligned (LED on receiving sensor is dim or
||Possible RPM sensor failure, or motor overheating unplug to reset.
||Motor circuit failure - replace RX/LX board.
||Chamberlain / Liftmaster remote code is being received (the garage
door opener may not be programmed to respond)
Wayne Dalton Info:
Here is a link to download Wayne Dalton Opener Manuals:
Genie Opener Info:
Here is a link to download Genie Opener Manuals:
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