OPERATION
EN
Tennant 2550 (02--01)
13
TROUBLE SHOOTING
PROBLEM
CAUSE
SOLUTION
No Power.
Faulty main or key switch.
Contact Service Center.
Faulty battery(s).
Replace battery(s)
Loose battery cable.
Tighten loose cables.
Improper battery cable connection.
See Installing Batteries.
Tripped Main circuit breaker.
Determine cause and reset breaker.
Charger is connected.
Disconnect Battery charger
Emergency stop switch is activated.
Turn button to reset.
Pad motor does not operate.
Faulty roll switch.
Contact Service Center.
Tripped pad motor circuit breaker.
Change pad or adjust pad pressure.
Reset breaker.
Faulty brush switch.
Contact Service Center.
Faulty contactor.
Contact Service Center.
Faulty wiring.
Contact Service Center.
Faulty pad drive motor.
Contact Service Center.
Worn carbon brushes
Contact Service Center.
Tilt safety switch is activated or faulty.
Lower machine from tilt position.
Drive motor does not operate or
operates incorrectly.
Parking brake is set.
Release parking brake.
Faulty roll switch.
Contact Service Center.
Faulty speed control 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.
Faulty potentiometer or speed control
board.
Contact Service Center.
Loose wire connection.
Contact Service Center.
Short run time.
Low battery charge.
Charge batteries.
Defective battery cell(s).
Replace battery.
Batteries need maintenance.
See Battery Maintenance.
Faulty battery charger.
Replace charger.
