This replacement switch assembly restores power control to the ProTeam ProGuard vacuum. The switch carries the on/off function that starts and stops the motor.A faulty switch can leave the vacuum unable to power on, shutting off unexpectedly, or unresponsive at the control. Worn contacts inside the switch are a common cause of erratic starting. A fresh switch assembly returns dependable, positive power control. Fits: ProTeam ProGuard vacuum Function: on/off switch assembly for the motor circuit Tip: unplug the vacuum before any electrical work Match the part to your existing switch and confirm the wiring before installing. Because this is an electrical repair, have a qualified person perform it if you are unsure, so the vacuum powers on reliably again.