I was planning to report what I thought would be a new observation, but it was already posted, as I am reading now.Yes, the switch can fail.I use the router occasionally and mostly it is mounted, spindle up, in a bench. After few weeks of inactivity it would not start. Indeed, after some disassembly, I discovered loads of saw dust in the contact. Turns out, it can be teased out with vacuum, without disassembling, if you know what to do.Other than that, I am happy to have this one at home, for the occasional use for improvements and maintenance.