User Guide
MACHINE TROUBLESHOOTING 
86307500 CHARIOT SCRUBBER 11/15/08 
4-25 
PROBLEM  CAUSE  SOLUTION 
Faulty vacuum circuit or switch  Check wires & connections Vacuum motor does not run, or runs 
slowly 
Worn vacuum motor brushes  Replace brushes, check commutator 
Faulty circuit or actuator  Check wires, connectors and actuator Squeegee will not go up/down 
Faulty cables or pulleys  Repair/replace cables or pulleys 
Debris caught in scrub brushes  Remove debris 
Worn brushes or pads  Replace brushes or pads 
Improper detergent, brush or pad 
used 
Contact equipment or application 
specialists 
Low scrub brush down pressure  Increase brush pressure 
Poor scrubbing performance 
Low battery charge  Charge batteries 
Solution tank empty  Fill solution tank 
Solution strainer plugged  Clean solution strainer 
Solution system plumbing obstructed  Clear obstruction from plumbing 
Pump obstructed  Clean or replace pump 
Solution solenoid valve obstructed or 
stuck 
Clean or replace valve 
Solution shut-off valve is closed  Open shut-off valve 
Faulty pump circuit or pump  Check wiring, connections, and pump. 
Little or no solution flow to the floor 
Faulty solenoid  Check solenoid valve 
Circuit breaker(s) tripped  Reset circuit beaker(s) 
Low battery charge  Charge battery 
Fault brush circuit or motor  Check wires, connections and motor 
Worn brush motor brushes  Replace brushes, check commutator 
Brush motors do not run, or run 
slowly 
Faulty actuator circuit or actuator  Check wires, connections and 
actuator 
Scrub deck goes down, then raises  No brushes or pad drivers on 
machine 
Install brushes or pad drivers 










