I expect to visit again tomorrow and survey the building and location of the AED

There is only one but the location of the one I put on is in the more accurate location. The building on OSM is wrong. It is a

I'm not sure what it means. It was on a wall where I added a gate. It was last edited 10 months ago by Stonemill2.

I split the wall and took off "wall=no" on the bit of wall that I saw and could see on Bing and left it on the other bit that
you cannot see on Bing. I am planning to remove "wall=no" on the rest of the wall in the next couple of days unless someone tells me it was a valid tag and what it means.

Updated now. Thanks for letting me know I had miised it off.