The part(s) or condition(s) listed below for the symptom Circular saw will not run are ordered from most likely to least likely to occur. Check or test each item, starting with the items at the top of the page.
If the circular saw will not run at all a motor brush might be bad. The motor brush contacts a rotating motor armature providing voltage to run the motor. The brush can burn or become damaged interrupting the current flow to the armature. Inspect the brush for burns or damage.
