MAINTENANCE
Tennant T600 EE (04-2018)
37
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
Service indicator icon is
flashing
Machine or on-board battery charger
fault has been detected
See SERVICE INDICATOR CODES
Machine will not operate
Emergency shut-off button activated
Turn button to reset
Machine fault detected
See SERVICE INDICATOR CODES
Batteries discharged
Recharge batteries
Loose battery cable(s)
Tighten loose cables
Faulty battery(s)
Replace battery(s)
Faulty key switch
Contact service
Faulty start bail switch
Contact service
Circuit breaker tripped
Reset circuit breaker
Faulty control board
Contact service
Machine will not propel
Propel fault has been detected
See SERVICE INDICATOR CODES
Electronic parking brake system is
disengaged (option)
See PUSHING AND TRANSPORTING
MACHINE.
Faulty propel motor or wiring
Contact service
Worn carbon brushes in motor
Contact service
Brush motor will not
operate
Brush motor fault has been detected.
See SERVICE INDICATOR CODES
Faulty pad motor or wiring
Contact service
Worn carbon brushes in motor
Contact service
Vacuum motor will not
operate
Squeegee assembly is raised off floor
Lower squeegee assembly to floor
Vacuum motor fault has been detected
See SERVICE INDICATOR CODES
Faulty vacuum motor or wiring
Contact service
Circuit breaker tripped
Reset circuit breaker
Poor scrubbing
performance
Debris caught in brush/pad
Remove debris
Worn brush/pad
Replace brush/pad
Incorrect brush pressure
Adjust brush pressure
Wrong brush/pad type
Use correct brush/pad for application
Low battery charge
Recharge batteries
Uneven brush pressure
Scrub head/brushes not level. Contact service
Trailing water - poor or
no water pickup
Full recovery tank or excessive foam
buildup
Drain recovery tank
Loose drain hose cap or flow control
valve is open
Replace cap or close flow control valve on
drain hose
Worn squeegee blades
Rotate or replace squeegee blades
Incorrect squeegee blade deflection
Adjust squeegee blade height
Clogged drip trap (Squeegee assembly) Remove cover and clean
Clogged squeegee assembly
Clean squeegee assembly
Loose vacuum hose connection
Secure vacuum hose connection
Clogged vacuum hose
Flush vacuum hose
Damaged vacuum hose
Replace vacuum hose
Clogged float shut-off screen in
recovery tank
Clean screen
Recovery tank lid not completely closed
Check lid for obstructions
Defective seals on recovery tank lid
Replace seal