Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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Digidoor 3 garage door only opens about 60cm and stops. Was not given a manual by installer.

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The problem might actually be the door itself. make sure it raises and lowers easily and is well balanced. If it is then find the power adjustments and turn up the up force to work the door. Do a 2x4 safety reversal test afterward. Thanks BB

Posted on Sep 03, 2010

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I have a Digidoor garage door that closes halfway and the opens again however when you apply a little pressure to the door the door closes completely The entire shaft was cleaned and lubricated but still...


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I bought a second hand Digidoor 1 with garage door. The door opens and closes perfectly when the digidoor is off. When I power up the digidoor the motor will not open the garage door when the door is...


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