Yes, here is the old existing node: https://www.openstreetmap.org/node/9555896239
You can also see it if you zoom all the way in (while editing) or if you temporarily move the node away in iD (osm.org web editor) while editing.

By the way, if the AED doesn't have a specific name, it should not have a name tag. This also applies for the other AED you created: https://www.openstreetmap.org/node/12564853200
Having emergency=defibrillator is enough in itself to clearly indicate it as an AED. It is up to each different data consumer (for example map views, but also programmatic users, data science/studies, etc.) if they want to show that as in icon (and not any text if there's no signed name) or with an "AED" text or a translated text of AED.
See here for other helpful tags to use for an AED (but which don't include name): https://wiki.openstreetmap.org/wiki/Tag:emergency%3Ddefibrillator

Also, generic names should never be used, always use just the proper tags and the potentially signed name. This makes the OSM database most useful to all kinds of data consumers and not just for example for map views like the default osm.org map or Osmand. See https://wiki.openstreetmap.org/wiki/Tagging_for_the_renderer
And for more information regarding the name tag, see: https://wiki.openstreetmap.org/wiki/Names#Name_is_the_name_only

Feel free to ask if anything is unclear or removing the duplicate node doesn't work.