93Service Manual – SC401, SCRUBTEC 344 20 - Wheel System, Traction
Troubleshooting
Trouble Possible Causes Remedy
The machine does not move Battery voltage too low Charge the battery
Speed adjuster (RV1) incorrectly regulated or
broken
Replace
One or both Operator’s presence sensors
(S1, S2) faulty
Replace
Main machine controller (EB1) faulty Replace
Drive wheels controller (EB3) LEDs blinking
alarms
See the next paragraph
Drive wheels controller (EB3) faulty Replace
Wiring damaged Check all connections inside
the electrical component
compartment, included
those of the Main machine
controller (EB1) and the
Drive wheels controller
(EB3)
Drive system motor (M3) faulty Replace
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