Hi chaps- thanks for replies, only just aware of them all. Grateful.
Now I checked switch- fine, and am quizzing the brushes as one might. Ive orddered some (had to instigate the most likely parts on their way/ I make a living with this router, but cant afford a deWalt service, and Ive repalced brushes on a cheaper router before with ~ similar'ish symtoms) so fingers crossed just that.
But it might be the control unit (is the other fallible part of these dw621 routers, from www spiel afaict). Some folks mentioned you can test this by bypassing it with a couple of appropriate wires.. but without knowing exactly what Im doing/ which wires to connect to bypass Im not proceeding.. unless with help here. Its a simple thing to do sure, but one that could kill the router if I apply wrong.
Anyone bypassed a control unit before?