Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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My merlin 230T won't open or closes with remotes but will operate when button on unit is pressed.

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Unlock the LOCK

Posted on Jul 11, 2010

  • Russell Cargill
    Russell Cargill Oct 21, 2016

    What is meant by unlock the lock ?
    How do you unlock the lock?

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Related Questions:

1 Answer

Hey I want to know where the learn button is on merlin 230t garage door motor thanks


Press and release the green operate button to move the
door up or down. Press again to stop in the required fully
open or fully closed positions. Each time the operate button is pressed the door will stop or move in the opposite
direction.fio7c8ndqjcnbwivaodrak7uj3hwweu20kudaeajwikaaaadgbmbaaagacccaaamae4eaaayajwiaaawadgraabgahaiaadaaobeaacaaccjaaaaa4ataqaabganagaadabobaaagaa78f8dc5tazpfvnuuaaaaasuvork5cyiia

Feb 11, 2017 | Building Materials

1 Answer

Merlin prolift 230T won't open with remote. The chain goes around but it does not open or close the door


someone unlatched it to open by hand and the disconnect needs to click back in . give it a wiggle (the rope)

May 08, 2015 | Building Materials

1 Answer

I have a Merlin 230T garage door opener and it has started to run in the opposite direction. ie; it is closed now and when I use the remote control it tries to close more


Pull the emergency release handle. Use remote to open door then close it again with the remote. Now re engage the emergency release. That should put the chain in the right position for proper operation.

Aug 28, 2014 | Building Materials

1 Answer

Merlin 230t Door completes closing and goes straight back up again without using the remote...all adjustments have been made by a licenced door mechanic and yet it still refuses to stay down


Check for black marks on the wall or something it may be hitting . (if so the track is to tight to the wall)..... also Release the door from the opener and check it manually make sure its smooth and balanced correctly two panels up two panels down

May 26, 2014 | Building Materials

1 Answer

Merlin 230t


If the chain is loose I would definitely tighten it up to remove the sloppiness of the drive. That will in turn help you to accurately find the sweet spot that is currently eluding you. And you have to work fast because you do not want to overheat the motor.

Sep 21, 2017 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Merlin Prolift 230T wont clear / delete remotes from memory


Press 'setup' key for 11s not 'learn' key.

Jun 26, 2012 | Cell Phones

3 Answers

I have a Merlin 230T garage door opener which abruptly stopped working altogether. Could it be the fuse?--or any other suggestions.


There is a fuse in a Model M-230T and I have seen a service man change it.Now that the fuse has blown again, I want to change it myself BUT can't now find it!

Can anyone please offer a guide to changing the fuse?

Sep 22, 2010 | Sears Craftsman LiftMaster Chamberlain...

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