Chamberlain 12HP Power Drive Chain Drive Garage Access System Logo
Posted on Nov 29, 2010

Lights for door opener do not come on when door is opened or closed. Where do I find switch that controls this. The wall-mounted control does not appear to function. It is a Liftmaster professional model NO. 2265-267C reply to [email protected]

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  • Posted on Nov 30, 2010
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I have an Electro Lift model #G5446. The light switch in the opener has a break in the hair-like wire wrapping the activator arm. Thus my light doesn't work. I crazy glued the wire and it worked about 10 times, but quit again. I'm afraid that heat affected it. It only takes loosening 3 screws to remove it, and it seems to be an easy replacement---why can't I find the part???

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  • Posted on Dec 03, 2012
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I have chamberlain liftmaster 1/3 hp we having trouble with no power at all and smell like burn something

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0helpful
1answer

My Chamberlain garage door will not close unless you hold the opener unless you hold the opener until the door is completely closed. What can cause this?

If the remotes will still open the door but it will only close if you hold the button down on the wall control continuously then you likely have an issue with the safety sensors.

There is a safety sensor mounted near the floor on either side of the door, these sensors have electronic "eyes" that have to "see" each other or the door control stops the garage door from closing. The idea is to prevent the door from closing on something or someone who may be in the way. When you continuously hold down the close button in the garage you are over-riding this system.

An intermittent alignment issue with the sensors or damaged sensor wiring or a failing sensor could sometimes make it impossible for the system to determine if anything is under the door and, again, it will prevent the door from closing normally.

Each sensor has an LED on it, if one LED is off or faint or flickering the sensors are out of alignment. The mount bracket might have loosened or bent, or maybe the nuts holding it have loosened. Either way, fix the mount or tighten the nuts so the sensors are aligned and both LEDs are bright.
If neither sensor has an LED lit, you may have damaged wiring to the sensors. Often this happens if the wires were mounted with a standard stapler and the wire is pinched. The wire eventually breaks internally and the sensors stop working.

The overhead lights might also flash 10 times if you try to close the door and there is a sensor problem. Your opener may also have a

Lock Feature

that could stop the remotes from working, indicated by a flashing light on the wall control, but normally this feature would not require continuously holding the button to close the door.

If everything checks out, it is possible there is a problem with the control in the opener itself, but normally a problem here will not allow the door to open normally or allow you to over-ride the controls to close it.
0helpful
1answer

My Overhead garage door closes fine, but will not open unless the button is held continuously

f the remotes will still open the door but it will only close if you hold the button down on the wall control continuously then you likely have an issue with the safety sensors.

There is a safety sensor mounted near the floor on either side of the door, these sensors have electronic "eyes" that have to "see" each other or the door control stops the garage door from closing. The idea is to prevent the door from closing on something or someone who may be in the way. When you continuously hold down the close button in the garage you are over-riding this system.

An intermittent alignment issue with the sensors or damaged sensor wiring or a failing sensor could sometimes make it impossible for the system to determine if anything is under the door and, again, it will prevent the door from closing normally.

Each sensor has an LED on it, if one LED is off or faint or flickering the sensors are out of alignment. The mount bracket might have loosened or bent, or maybe the nuts holding it have loosened. Either way, fix the mount or tighten the nuts so the sensors are aligned and both LEDs are bright.
If neither sensor has an LED lit, you may have damaged wiring to the sensors. Often this happens if the wires were mounted with a standard stapler and the wire is pinched. The wire eventually breaks internally and the sensors stop working.

The overhead lights might also flash 10 times if you try to close the door and there is a sensor problem. Your opener may also have a

Lock Feature

that could stop the remotes from working, indicated by a flashing light on the wall control, but normally this feature would not require continuously holding the button to close the door.

If everything checks out, it is possible there is a problem with the control in the opener itself, but normally a problem here will not allow the door to open normally or allow you to over-ride the controls to close it.
0helpful
1answer

Lift master formula I will not close, only goes half way down, but fully opens. Worked fine until my wife closed the door on the car, after that it would fully close

I had this problem as well with the door opening just fine but was not closing when using the remotes or when breifly pressing the wall mounted control. The door would close only when using the wired wall mount control. I have experienced this problem with other garage door openers I've had in my previous homes and it was always caused by sensors at the bottom of the door tracks being either misaligned or the lenses were dirty. In this case, and it was just a moment ago today, I simply cleaned the sensor lenses and then the door began to function properly. Give it a try.
0helpful
1answer

I have a Sears Model 139.53879 (3-Function Remote Control) garage door opener. It's about 12 years old. The remote controls open the door fine but the remotes do not close the door; it has to be closed...

Sounds like a problem with the safety photocells, to confirm locate the where the safety input is on the opener and bridge out the terminals ( not the supply voltage terminals) if the door then closes the photocells are the problem.
0helpful
1answer

Garage door wont close with remote control or home link in car. Will only close if continuously hold wall mount button during entire door travel

thanks w/d for getting right on my problem,my closer doesnt have lights at the bottom, it's a garage sale deal. works good otherwise exept I have to hold closer button on the wall to close.
0helpful
1answer

I have a door with two buttons and remote but only

On the wall control with the flashing light press and hold the button with the lock icon for 3 seconds and release.
1helpful
1answer

Garage door will not open close with remote

Press and hold for 3 seconds the button on the wall control with the lock icon.
0helpful
1answer
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