Minuteman E20 SPORT Walk-Behind Scrubber Disc Traction Drive - Manual (Page 37)

37
Troubleshooting
Problem Possible Cause Remedy
Machine does not operate
Tripped Control Power circuit breaker Reset breaker
Batteries have low charge Recharge batteries
Battery charger operating Unplug battery charger when charge
is complete
Key switch off Turn key on
Bail handle depressed too quickly after
turning key on Turn key off, turn on, wait until battery
gauge lights up without flashing
Vacuum motor does not turn
on
Bail handle is not depressed Bail Handle must be depressed
Recovery tank full Empty recovery tank
Excessive foaming in recovery tank. Use less or change chemical.
Use defoaming agent.
Squeegee in raised position Lower squeegee
Tripped vacuum motor circuit breaker Reset breaker
Broken vacuum limit switch Replace switch
Carbon Brushes worn Replace carbon brushes
Vacuum switch disconnected Connect wiring
Brush does not unload
Foot pedal not in “home” position Place pedal in notch
Tripped brush motor circuit breaker Reset breaker
Broken brush motor switch Replace switch near the pedal
Damaged brush block or drive hub Inspect for cracks & replace
Batteries do not charge
Charger not plugged to wall outlet Plug into wall outlet
Circuit breaker tripped in wall outlet Reset breaker
Battery disconnected from machine Fix connections to batteries
Charger malfunction Call service
Charger Warning Indicators
LED Status Description
Warning
RED LED lamp blink once
Output open circuit or short circuit or reverse polarity connection of
charger to battery. Battery voltage is too high (may be connected to
wrong voltage battery).
RED LED lamp blink twice
Abnormal cycle (may be weak or bad battery)
Charging time has safety timed out due to battery problem.