Minuteman E20 Walk-Behind Scrubber Traction Drive Cylindrical Deck - Manual (Page 35)

35
Troubleshooting
Prob lem Possible Cau se Remed y
Machin e does not
o pe rate
Tripped Control Power circuit breaker Reset circuit breaker
Batteries have low charge Recharge batteries
Battery charger operatin g Unplu g 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, wa it until battery gauge ligh ts up
without flashing
Vac uum m otor
d oe s not tu rn on
Recovery tan k full Empty recovery tank
Excessive foaming in recovery tank.
Empty recovery tank.
Rin se off the screened float inside recove ry tank.
Use less or change chemical.
Use d e-foaming agent.
Squeegee in raise d position Lower squeegee
Tripped vacuum motor circuit breaker Reset breaker
Broken vacuum limit switch Repla ce switch
Carbon Brushes w orn Repla ce carb on brushes
Vac uum switch disconnected Connect wiring
Ba tteries do not
charge
Charger not plugged to wall outlet Plug into w all outlet
Circuit breaker tripped in wall outlet Reset breaker
Battery disconnected from machin e Connect battery to machine
Charger malfunction Call service
Brush deck
vib ration
Brushe s may have flat spots fro m sitting
for a long period o f time on the floor Rotate one of the brushes in the deck . U se machine
for 30 minutes, flat spots will w ork themselves out.
Debris in brushes Remove debris from brushes.
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.