OPERATION
Tennant 5500/5520 (07--02)
19
TROUBLE SHOOTING
PROBLEM
CAUSE
SOLUTION
No power.
Faulty main switch.
Contact Service Center.
Batteries need charging.
See CHARGING BATTERIES.
Faulty battery(s).
Replace battery(s).
Loose battery cable.
Tighten loose cable.
MAIN circuit breaker has tripped.
Determine cause and reset circuit
breaker button.
Brush motors do not operate.
Brush switch is not on.
Turn on brush switch.
Control grips are not rotated.
Rotate control grips.
Brush circuit breaker(s) has tripped.
Clean or replace pad or brush and
reset brush circuit breaker button.
Faulty brush motor or wiring.
Contact Service Center.
Carbon brushes worn.
Contact Service Center.
Faulty brush switch or solenoid.
Contact Service Center.
Vacuum motor does not operate.
Faulty vacuum switch.
Contact Service Center.
Vacuum circuit breaker has tripped.
Remove obstruction and reset
breaker.
Faulty vacuum motor or wiring.
Contact Service Center.
Carbon brushes worn.
Contact Service Center.
Drive motor does not operate.
Drive motor circuit breaker has
tripped.
Determine cause and reset breaker.
Faulty speed control circuit board or
connection.
Contact Service Center.
Faulty solenoid.
Contact Service Center.
Faulty drive motor.
Contact Service Center.
Faulty wiring.
Contact Service Center.
Worn carbon brushes.
Contact Service Center.
Drive motor operates improperly.
Faulty potentiometer or speed control
board.
Contact Service Center.
Loose wire connection
Contact Service Center.
Little or no solution flow.
Solution flow adjustment knob needs
adjusting.
Turn solution flow knob clockwise to
increase flow.
Solution line or solution tank filter is
clogged.
Remove hose and blow compressed
air through it. Flush solution tank after
each use.
Solution valve or solenoid is clogged.
Remove valve or solenoid and clean.
Do not scratch inside of valve.
Faulty solution switch or solenoid.
Contact Service Center.
Loose set screw on solution knob.
Calibrate knob and retighten screw.
Short run time.
Batteries not fully charged.
Charge batteries.
Bad cell in one or more batteries.
Replace battery.
Batteries need maintenance.
See BATTERY MAINTENANCE.
Faulty charger.
Replace battery charger.