Answer Title: Why does my garage door opener activate on its own?
Answer Link: http://chamberlaingroup.custhelp.com/app/answers/detail/a_id/232
Model:041A7928-3, Date:08/13, IC:2666A-7881, FCC ID HBW7881. I found it.
Estimated Arrival Date:
Connectivity Kit for Chamberlain Openers
Item #: 502287 Model #: CIGCWC
I got lucky
Exorcism (from Greek ἐξορκισμός, exorkismos – binding by oath) is the religious or spiritual practice of purportedly evicting demons or other spiritual entities from a Garage Door opener or a Garage they are believed to have possessed or even in the vicinity of your neighbors garage.
I can't believe Chamberlain hasn't addressed this issue after all this negative feedback.
I m so disappointed with the slow response of their customer care; I have to replace it with a different brand. I don't know if I can trust this brand anymore with the safety of my family.
Once it did not open during the time period, i programmed one remote at a time. This worked for me but everyone has different issues.
I had tried the following measures independently to no avail: (1) Disconnecting the myQ; (2) Removing the batteries from my LiftMaster Model 811LM remote controls; (3) Changing the positions of the dip switches and re-programmed the system; (4) Checked if there is any interference of signals from neighbors; and (5) Contacting Chamberlain Technical Support.
The "Phantom Opening" still persists. I suspect that the culprit is most likely in the electronics, which I suspect are similar to the ones in the Chamberlain/LiftMaster Garage Door Openers that most people are having problem with.
I hate to admit it, but perhaps I had wasted my money on a piece of junk!
To determine and troubleshoot this issue, a local LiftMaster dealer will need to be contacted.
Dealers can be found here: https://www.liftmaster.com/locate-a-dealer
To all consumers with phantom opening problems with their liftmaster garage door openers. I personally own 3 from the 8500 series and have been dealing with this phantom opening problem for years. Phantom opening is when your garage door opens and closes all by itself. Like many of you, I have come home and or woken up in the morning to find out that my garage door opened all by itself, VERY scary and unsafe for many obvious reasons. I have spent many HOURS of grief on the phone with their technical people and have tried many different attempts at fixing this including but not limited to changing remotes, rewiring, reprogramming, changing circuit boards etc. This morning, I was able to ‘catch’ the door going up and down dozens of times by itself which I captured on video.
The myQ wall control is the culprit people. I am an electronic technician by trade and decided to do a little troubleshooting myself. The copy and paste solutions the company keeps posting is a joke and they obviously have no respect for people’s time and safety. Call them and have them send you a new myQ programmable wall switch. I disconnected mine and the door stopped going up and down by itself. After dis-assembling I quickly noticed that capacitor C1 and C18 are leaking causing a short in the circuitry which is making the door go up and down. This is a common problem on electronic circuit boards nowadays and is most likely due to the cheap inferior capacitors being used. I would like to admonish the company for not figuring this out on their own and caring so little about the safety of their customers.
We are sorry that your experience with our openers have not met your expectations. This situation should not be occurring at all and we want to make sure we get this fixed right away. Can you email us your contact information at firstname.lastname@example.org and reference this post? We are happy to have someone working on this right away.
I called Chamberlain and they have sent me a replacement 888LM at no cost, which is supposed to arrive tomorrow...
People on Amazon are complaining about this same "fails in three years, opens my door, so I'm afraid/angry/shocked":
Chamberlain/LiftMaster are on the hairy edge of a class action lawsuit because of this summer student design.