Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

1 Answer

Inside light on garage door opener blinks twice when remote contr

When remote control is used.  Hardwired controls work fine.  Hidden security password opener  works fine, too.

Posted by on

  • sethmichelle May 11, 2010

    Hi there, What type of make and model do you own? In most cases these are indications of problems. If it is only the remote control that causes this situation and the garage door it self works properly with keypad and hard wire then it could simply be an indication of low battery on your remote.

×

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 143 Answers

YOu will need to explain the problem for an accurate answer. Thanks BB

Posted on Sep 05, 2010

  • Jaosn
    Jaosn Dec 28, 2013

    I had the same problem.... The lock button has been pressed. To unlock, press and hold to clear it and everything will work fine.

×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

We moved into a house with a LiftMaster garage door opener that we are guessing is almost 10 years old. No problems when using the one handheld remote we were given or the wall control; however, when...


Just to satisfy me would you try your original handheld remote once to make sure it is working properly. The wall control is hardwired so it is not a question.

Sep 22, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Changed code on the wireless chamberlain security key pad


Does it work from wall button? Hit learn button for 10 seconds. Hit again for 1 second and code keypad.Opener lights should blink 2x. Hit learn again for a second and hit button on a remote (Any button you chose). Again, lights should blink. Now should work. Repeat for any other remotes.

Jul 24, 2009 | Chamberlain 950CB Remote Control

1 Answer

Garage door opener will not respond to security plus remotes


Reset the Liftmaster unit. There should be a red reset button on the unit in the garage. If this does not work, reset the breaker. Good Luck!

Jul 03, 2009 | liftmaster Chamberlain Garage Door Opener...

1 Answer

All remotes stopped working on genie opener, hardwired wall switch works fine.


Your lock on the opener is probably engauged. On the wall control there is a button labeled lock. Press and hold this button for three seconds. Your remotes should work now. If they still do not work, you need to reprogram the remotes. Press the learn button on the back of the motor and then press and hold the remote button. The light will blink once. Repeat this step on the other remotes.

Feb 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door opens on it own and light blinks


  • Stuck remote control button. Check all remotes. check LED on receiver.
  • Staples around Multi-Function Control Panel bell wire could be cutting into that wire. Remove wires from opener and test. Replace staples causing intermittent short.
  • Multi-Function Control Panel could have sticking door control push bar. Remove wires from control panel and test. Replace control panel if defective.

Dec 28, 2008 | Sears Craftsman LiftMaster Chamberlain...

6 Answers

Garage door remote won't open the garage door


The little button with a padlock on the wall control is a "vacation" lockout feature that disables the remotes. There should be a small LED on the wall control that is always on steady. When the padlock button is pressed and released the LED should be constantly blinking (indicating the vacation lockout mode is active) and your remotes should be disabled. The wall control will still operate the door. Pushing the padlock button again should make the LED stop blinking and restore the door to normal operation.

Jun 18, 2008 | Sears Craftsman LiftMaster Chamberlain...

Not finding what you are looking for?
liftmaster Chamberlain Garage Door Opener Transmitter 300MC Logo

625 people viewed this question

Ask a Question

Usually answered in minutes!

Top liftmaster Electrical Supplies Experts

Vince Heuser

Level 2 Expert

118 Answers

tamska1102

Level 1 Expert

28 Answers

ray gallant

Level 3 Expert

41071 Answers

Are you a liftmaster Electrical Supply Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...