Oh my - I noticed my trigger number 14 had ‘died’. When I opened it up a spring and ball bearing dropped out. The actual trig casing ‘looks’ ok but is detatched from the circuit board. I’ve not found out which tool to use to remove the circuit board from the top so not sure if it just all clips back on. So … looking at the attached images
I guess I’m a bit dumb for not trying that. I always have this idea that big companies are going to ignore me - will drop them a mail. Thanks for prompting me