Yes I tried that. Just seems unusual that they've both had it at the same time.
I haven't got any testing equipment so I'm going to have go through it again I think, just to make sure.
Do you have to hold it for so many seconds or anything? Although I did try everything. Holding it for a long time, just pressing it quickly, pressing it whilst turning it on and off.
I did notice the brush bar/motor connector were different though, I didn't think they would be. One is a 24 the other a 24i.
Thanks for the reply.