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2.1K views 6 replies 5 participants last post by  andybm3  
This will likely be the door pinch sensor. I had a similar issue with one of my doors. I'd totally forgotten that I'd repaired mine and made a little explanatory video Here (but forgot to video the actual fix, which is breaking into the door rubber and re-affixing the wires to the strip (or, I guess you can replace the strip, but it was ÂŁ60 2 years ago))
My other door appears to work fine, but I have the flashing switch light and your post has made me think that perhaps it has the same issue, so I'll be checking that ASAP.