Windsor COMDU 1.008-612.0, Operating Instructions Manual, Page: 47 / 145

47
Maintenance
Machine Troubleshooting
PROBLEM CAUSE SOLUTION
No power to
machine
Battery disconnected Check all battery cable connections
Battery cables corroded Clean connections
Faulty key switch Replace switch
Little or no propel
Low battery charge Charge batteries
Machine turned on with propel trigger not in
neutral position
Allow pedal to return to neutral. Restart
Tripped circuit breaker Reset circuit breaker and check brush
Controller overheated Allow cool down period
Loose motor connection
Check wires and connections from controller
to motor
Faulty throttle circuit or potentiometer
Check wires and connections from throttle to
controller and potentiometer resistance
Faulty brake circuit Check wires connections
Machine does not
change speeds
Faulty speed control circuit or potentiometer Check wires, connections and pot
Forward speed only
Reverse speed only
Faulty forward/reverse switch Replace switch
Poor scrubbing
performance
Debris caught in scrub brushes Remove debris
Low scrub brush down pressure Check brush wear
Low battery charge Charge batteries
Little or no solution
flow to the floor
Solution tank empty Fill solution tank
Solution pump turned off Turn on pump
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
Jet(s) obstructed Clean or replace jet(s)
Faulty pump circuit or pump Check wiring, connections, and pump.
Faulty solenoid Check solenoid valve
Brush motors do not
run, or run slowly
Circuit breaker(s) tripped
Reset circuit beaker(s) and check brush
pressure.
Low battery charge Charge battery
Fault brush circuit or motor Check wires, connections and motor
Worn brush motor brushes Replace brushes, check commutator
Scrub deck will not
go down/up
Actuator circuit breaker tripped Reset breaker
Faulty actuator circuit or actuator Check wires, connections and actuator
No chemical flow
(Deluxe)
Tank(s) empty Fill tanks and prime chemicals
Chemical pump not primed Prime chemical pump
Chemical system obstruction Rinse system with water
86400200 Operators Manual - Commodore Duo