I own a Ryobi ECW-1841 electric chain saw. There are 2 microswitches in the handle activated when the trigger is pressed. One of the micro switches keeps failing (left hand side switch when viewed from above). I have gone through 3 new micro switches now. I suspect a wiring fault somewhere that places an overload on the switch?? Anyone any ideas or come across this fault before? If I cannot find an answer to this I may as well bin the chainsaw as repair costs will be high.

Robert webb, January 2008

It sounds like a typical electrical problem.
If it fail obviously the engineers failed on the design, try to get a different micro switch at a higher amperage rating. Robi is a good brand name, but there equipment many times has big time problems in there design.

Pinkpanther, April 2008