Motion detector automatically turns on garage door opener lights when movement is sensed.Locks out all outside remote control signals while you're away.Easily program remote controls and MyQ® enabled accessories directly from the control panel.Timer-to-Close feature allows the door to automatically close after a pre-programmed number of minutes.Adjustable light timer lets you set when you want the opener lights to go out after closing or opening the garage door (pre-set at 4 1/2 minutes).On/Off switch for deactivation of motion-detecting function.Turns opener lights on/off from inside the garage. This panel is also equipped with Timer-to-Close (TTC) that closes the door automatically after a pre-programmed number of minutes, making it easy when you unload your car and also gives you peace of mind to know that your garage can close by itself in case you forget to close it on your way in to the house. Premium radio system to enhance range or solve interference issues.ĭo you hate walking into a dark garage? This control panel with motion detection will turn on the garage door opener lights as soon as you walk into the garage so there's no more fumbling in the dark to get in the car or get something from the garage. Garage door openers manufactured after 1998 to the new Security + 2.0 This post has been more of a public service more than anything.The LiftMaster 888LM MyQ Control Panel upgrades all LiftMaster and Sears Craftsman Security + They may be low-ESR but I don’t care to bust a meter out to find out. Other than the voltage rating on these new caps being 3V instead of 2.5V on the old caps, I see no immediate difference. New ‘no-name’ supercaps that will likely fail in 3 years, so I felt no desire to order top shelf components knowing that it is likely a poorly–engineered circuit design leading to component failure.Ī picture of the ‘improved’ caps on the replacement board from Liftmaster. Some staining to the PCB, but the electrolyte didn’t have a chance to eat any pads or vias, yet…. Ruptured and leaking capacitors do not represent an optimal working condition. Here are some pictures of the old and the new. I went ahead and fixed my existing 888LM anyways. Liftmaster is well aware of this problem and are issuing warranty replacements with no questions asked, which is the right thing to do. I was also fortunate that the problem issues I was having were not as bad as some others have reported, namely the control panel shorting out and raising the door while no one is at your home or business. My garage door does not see a lot of use, so I got 4 years before mine started acting wonky. I initially just figured one of the photo eyes for the light beam were out of whack so I readjusted them back to specs with no improvement in my little issue.Īfter a lot of other troubleshooting and a lot of digging online, I discovered that a pair of 1F supercapacitors in the older 888LM units are guaranteed to fail almost 3 years after the control panel is installed. So, recently my control panel for my Liftmaster garage door opener learned a new trick, namely beeping a short pulse immediately followed by a sustained tone, seemingly at random and rendering my opener inoperable during these episodes.
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