17
SOLUTION FILTER CLEANING
1. Close the solution tank water tap (27).
2. Remove the filter cover and the filter screen, clean them with water, and then fit them back.
3. Fix the filter cover.
NOTE
The filter screen (E) must be correctly fitted on the housing (G).
4. Turn on the solution tank water tap (27).
TROUBLESHOOTING
FAULT CODE
State of the BDI
Fault
Possible Cause
Remedy
0 notch is
on
Unknown error
1. The machine is not on.
1. Check the machine and
the wiring cables.
2. BDI is broken.
3. Replace the PCB.
4. Controller failed.
2. Replace the controller.
1 notch
flashes
Battery is low
Battery voltage is too low. Charge the battery.
3 notches
flash
Controller
temperature
failure
1. Controller temperature
is too high/low.
1. Turn off the key switch
and cool the controller
itself.
2. Controller failed.
3. Replace the controller.
5 notches
flash
Open circuit of
vacuum motor
Open
connection
for
vacuum motor.
Check the wiring of the
vacuum
motor
with
controller.
6 notches
flash
Open circuit of
brush motor
Open
connection
for
brush motor.
Check the wiring of the
brush motor with controller.
7 notches
flash
Over-current of
vacuum motor
1. Short circuit.
1. Check if there is short
circuit.
2. Vacuum motor failed.
3. Replace
the
vacuum
motor.
8 notches
flash
Over-current of
brush motor
1. Short circuit.
1. Check if there is short
circuit.
2.Brush motor failed.
2. Replace the vacuum
motor.
9 notches
flash
Over-voltage of
battery
Battery voltage is too
high.
Check
if
the
battery
specification is correct.
Solution flow indicator
3 notches
flash
Open circuit of
electromagnet
valve
Open
connection
for
electromagnet valve.
Check
electromagnet
valve.
