95
Service Manual – SC401, SCRUBTEC 344
20 - Wheel System, Traction
Display of
Drive wheels
controller
(EB3)
diagnostic
LED
Meaning
Conditions
What to do
Reset
8 flashes
Power supply fault Drive motor fuse open or
Drive wheels controller inner
safety relay faulty
Check the conditions of
the Drive motor fuse (F3)
and the Drive wheels
controller power supply
wiring; if the problem
persists, replace the Drive
wheels controller (EB3).
Turn off the machine using
the Ignition key (KEY)
9 flashes
Undervoltage
Battery voltage under 19V
Check the battery voltage
and the Drive wheels
controller (EB3) power
supply wiring
Turn off the machine using
the Ignition key (KEY)
10 flashes
Overvoltage
Battery voltage over 35V
Check battery voltage
Turn off the machine using
the Ignition key (KEY)
11 flashes
Drive motor
overload
Drive motor current higher
than 10 Amp for an excessive
period of time (the maximum
time depends negatively from
the overload entity).
Check if there is debris or
damages preventing the
drive system operation. Do
not use the drive system
on sloping paths
Turn off the machine using
the Ignition key (KEY)
13 flashes
Key disabled
Temporary absence of voltage
on the Ignition key inlet.
Check the Ignition key
(KEY) circuit wiring,
connections and functions
Turn off the machine using
the Ignition key (KEY)
14 flashes
EEPROM fault
Failed software consistency
check
Try to reset the machine, if
the alarm persists, replace
the Drive wheels controller
(EB3)
Turn off the machine using
the Ignition key (KEY)