Control System
13
Service Manual – SC530
Troubleshooting
Trouble
Possible causes
Remedy
The machine is not working
The batteries (BAT) are discharged or its
connections are not efficient
Charge the batteries or clean/repair the
connections
Batteries faulty
Check the battery no-load voltage
Battery charger faulty
Replace
The fuses (F1, F2, F3) are open
Replace
The wiring harness is cut or pressed or
short circuited
Repair
Control electronic board faulty
Replace
The three battery charge indicators flash
simultaneously
Brush motor overloaded
Use less aggressive brushes
Debris or wires/cords entangled in the
brush hub, slowing its rotation
Remove the brush and remove any
debris/wires/cords
