Motor power on a SEBO C3.1 is metered by the board catalogued as 6407ER. It reads the operator's input, regulates what reaches the motor, and then holds that level steady for as long as the machine is running.One detail marks this part out from the controller assemblies used elsewhere in the SEBO canister range: it carries no switch of its own. The C3.1 takes its on/off command from a foot pedal ordered separately, 6005GW in white or 6005DR in red, and cord retraction runs from a second pedal again, 6006GW. Suction is trimmed from the handle, which SEBO supplies complete with its hose and dual controls as 8545AM. What 6407ER contributes is the electronics between those inputs and the motor, and nothing else.Read the symptoms before ordering, because a worn control and a failed board look different in use. A board that has given up leaves the vacuum stuck at one power level whatever the control asks of it, drops out part-way through a room, or refuses to start while cord, pedal and outlet all test sound. A tired pedal instead gives a machine that plays dead until the pedal is worked, then behaves normally. Separating the two saves ordering electronics that were never the fault. Part number: 6407ER Fitment: SEBO C3.1 Job: regulates and stabilises motor power Supplied as: controller alone, with no switch attached Related numbers: 6005GW and 6005DR on/off pedals, 6006GW cord rewind pedal, 6369G2 mains cable, 8545AM handle and hose with dual controls Before you start: a mains-voltage component, so unplug the machine and leave it unplugged Genuine SEBO C3.1 electronic controller. Anyone searching for a C3.1 speed control, power board or motor controller is looking at the right number, though the work itself sits better with a vacuum technician than with a first attempt at mains wiring. Ships in 2–5 business days.
