Hello, I'm new on here so sorry if I posted this in the wrong place. I had a Chamberlain opener D2101 MC installed on my enclosed carport three months ago. The door is 8ft tall and I believe 23 or 24ft wide. At this time there is no way to enter other than the overhead door. I tried to open the door yesterday and it wouldn't work with any of my four remotes, so I tried to open by hand and I raised the door up and discovered that the safety rope had been pulled to release the door, and I had to reprogram all of the remotes. So, all is fine again now but my question is how in the *** did the rope get pulled, and why at the same time would the main unit unprogram all of the remotes?? Nobody could have got inside without opening the overhead door. Any ideas??? Thanks.
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