Question about Chamberlain UNIV GARAGE DOOR MONITOR

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Chamberlain UNIV GARAGE DOOR MONITOR model # 002c0507-3 the green and red light keeps flashing back and force....

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Posted on Jan 02, 2017

  • 3197 Answers

SOURCE: Garage door does not function makes couple of buzzing sounds only

Remove the cover and check out the drive gear. It is white nylon and is probably stripped.

Posted on Jun 01, 2009

blanchettohd
  • 143 Answers

SOURCE: chamberlain silent 3/4 hp red led on side and hear

This beeping is actually the battery back up unit making this sound. It either means there is no power to the outlet and it is using stand by power or that something is wrong and the battery is not charging correctly or will not take a charge. You can order replacement parts at chamberlain.com. Thanks BB

Posted on Sep 03, 2010

blanchettohd
  • 143 Answers

SOURCE: Chamberlain hd900d garage door opener

You will have to open the unit and look inside it. Unplug it first. It should have 6-8 screws to take off. You will see 3 white plastic adjustment screws. There is a carriage they sit in. Make sure they are in this carriage. If you would like stay back a bit and plug it in and watch it run to see how it works. It is a direct contact system, so when the middle screw touches the copper limit of the limit screw it stops. Thanks BB

Posted on Oct 11, 2010

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3 Answers

Why does the monitor's red and green light keeps blinking


Unplug, let it sit for a minute and plug back in. Ours does that when power is interrupted.

Sep 07, 2014 | Chamberlain UNIV GARAGE DOOR MONITOR

1 Answer

Red and green flashing together


That means that the Monitor unit has to be re-sync'd to the remote sensor. First, check that the remote sensor (mounted on the garage door) has a good battery. If so, then the monitor unit just needs to be paired. There is a small button on the inside Monitor unit (hole near where the power cord goes in). Press the small button with a toothpick or something similar and the unit will enter programming mode. Now open and close the door that the sensor is mounted on and it will then pair the two.

Feb 17, 2014 | JAYBRAKE Chamberlain Cldm1 Univ Garage...

1 Answer

Chamberlain garage door monitor keeps flashing green and red


http://www.chamberlain.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A2628.pdf

Dec 02, 2012 | Home Security

2 Answers

When I try to close my garage door --4100 model-- the door travels part way down, then reverses and goes to the up position. I can force it closed by keeping the garage door wall switch continually...


Check your door sensors. Make sure they are pointed at one another and the small light on each one is lit and not flickering. Tweak them a little. If you cannot get both lights to come on you have a bad sensor.

Dec 30, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman Model 139.53684 Security+ Keyless Entry Garage Door Opener... Green light flashing on door control push button. Remotes no longer work. Can open and close garage door from keypad. Why is light...


To answer your question the opener is in vacation mode. Press and hold for 3 seconds the button on your wall control with the lock icon. The green light will stop flashing and you will be back in business.

Dec 08, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Both lights on our garage door sensors are green (not blinking), but the door will not close with the remote or button in the garage. It does close if you force it by holding down the button in the garage....


If the main light flashes 10 times when the door starts to close and then reverses it is a door sensor problem. Look very closely at the lights on the sensors. If one of them is flickering ever so slightly it will give you the problem you have.

If the main light is not flashing then you need to increase the down force which is near where all those white wires go. A 1/4 turn should do it.

Nov 29, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sear garage door wall mount contol light keeps blinking


One of the buttons has a lock icon. Hold that button in for 3 seconds.

May 17, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Green light is flashing on my garage door opener on the inside of my house/craftsman opener


Hi. The green light was flashing and ny transmitter in the car would no longer operate the door. On the back of the liftmaster, just below wker the small wires go in, there is a small, flat, green button. I pressed that with a stick and it solved the problem.

Jun 27, 2008 | Sears Craftsman LiftMaster Chamberlain...

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