NaceCare TTV678 TTV678 Owners Manual (External Charger) - Page 22

Number of bars flashing on display Fault Possible Cause * 6 Bars flash continuously. * Control system is Inhibiting drive. * Faulty controller. Effect on Product * Machine will not operate. Investigate the Following * Check controller for water damage. Action Required * Replace controller. If Fault Persists. *7 Bars flash once with pause * 7 Bars flash twice with pause. * 7 Bars flash 3 times with pause. * Accelerator pedal trip. " Emergency stop has been activated. * Off aisle cleaning activated with floor tool raised. * Vac Motor system short circuit. * Accelerator pedal being activated without seat switch being activated (nobody on seat) Or seat switch momentarily deactivated while accelerator pedal being activated during forward / reverse operation. * Inadvertent pressing of emergency stop or activation of off-aisle cleaning mode. * Vac motor wiring fault / motor fault. * Machine will not drive. * Machine will not drive. * Vac motor will not operate. * 8 Bars flash continuously. * Control system trip. * Seat switch failure. * Machine does not operate. * Ensure accelerator pedal is not activated without seat switch being activated. Ensure firm contact with seat by operator at all times while accelerator is pressed. * Operator to be trained. * Ensure emergency Stop button has not been activated and off aisle vac switch is in off position with floor tool raised. * Check vacuum motor and wiring * Check seat switch wiring. * Reset emergency stop button. Switch off aisle vac and raise floor tool. * Cycle key switch to resume normal operation. * Replace motor and any damaged wiring. * Cycle key switch to resume normal operation. * Replace wiring as required. Contact Service Agent. 22 * 9 Bars flash once with pause. * Flashing beacon failure to operate. * Beacon short circuit. * 9 Bars flash 3 times with pause. * Water pump failure to operate. * Failure of pump or wiring short circuit. * 9 Bars flash 4 times with pause. * Detergent pump failure to operate. * Failure of pump or wiring short circuit. * 9 Bars flash 5 times with pause. * Solenoid brake circuit failure. * Failure of solenoid or wiring. * 10 bars flash continuously * Supply voltage to controller has exceeded 40 volts. * Battery and motor connections may have become loose. * Flashing beacon does not operate in accordance with safety requirements. * Check wiring and connections to device. * No water supplied to cleaning heads. * No detergent supplied in water mix to cleaning head. * Machine will not move. * Check wiring and connections to pump. * Check wiring and connections to pump. * Check wiring and connections to brake. * Possible long term damage to controller if fault persists. * Check battery wiring, trio drive and motor connections. * Replace damaged components. * Cycle Key switch to resume normal operation. * Replace damaged components. * Cycle Key switch to resume normal operation. * Replace damaged components. * Cycle Key switch to resume normal operation. * Replace damaged components. * Cycle Key switch to resume normal operation. * Replace damaged components. * Cycle Key switch to resume normal operation. * Bars cycle up and down continuously (from 1 to 10 and 10 back to 1) and repeats. * Bars cycle from 1 to 10 continuously and repeats. * Accelerator pedal movement detected during Vario start up sequence (partially pressed or jammed). * Machine inhibit. * Foot or object on pedal during switch on or possible jamming of pedal. * Controller/harness incorrectly wired. * Machine will not operate. * Machine will not operate. * Remove object and ensure pedal is not jammed or depressed during switch on of Vario. * Cycle Key switch to resume normal operation . * Check controller and harness wiring with special attention to wires p2/03 and p2/10. * Correct wiring. * Cycle Key switch to resume normal operation * No indication on display. * No indication on display. * No indication on display. * Horn and beacon failure. * Brush motors continuously either off or on while in transport mode. * Replace 20 Amp fuse (If this doesn't fix fault replace horn or beacon) * Microswitch failure. * Brushes will not operate correctly. * VAC motor continuously either off or on. * Microswitch failure. * Vacuum will not operate correctly. * Check wiring and microswitch on underside of machine by brushes ensuring microswitch is clear of debris. * Check wiring and microswitchs behind floor tool handle. * Replace/clean damaged components. * Replace/clean damaged components.