25
LCD Display Fault Possible Cause Effect on Product Investigate the Following Action Required If Fault
Persists.
Blank * No power * Key switched off
* Tank raised
* Emergency stop pressed
* Machine will not operate. *Key switched off
* Tank raised
* Emergency stop pressed
* Switch key on (page 8)
* Lower top tank
* Release emergency stop (page
8)
‘OVER CURRENT’ * Brush over current. * Brush pressure to great.
* Brush current exceeds 32A
* Wrong type of brush for surface
* Vac. Brush, water &
Detergent
motors / pump will not
operate.
* Brush LED’s all ash in
unision until the trigger is
released.
* Release brush pressure. ( page 14)
* Changed type of brush.
* Restart machine.
‘UNDER VOLTS’ * Battery voltage dropped
below
21 Volts.
* Left most Battery LED
ashes
* Batteries require recharging.
* Faulty cell on battery
* Machine will not operate. * Battery leads and connections. * Charge Bartteries. (page 19)
* Replace battery (if cell dam-
aged)
‘ TANK FULL’ * Tank full requires empty-
ing.
* Waste Tank Float switch activated
whilst
cleaning or off aisle mode selected.
* Faulty Float switch.
* Vac. Brush, water &
Detergent
motors / pump will not
operate.
* Tank full LED illuminated.
* Top waste tank full.
* Empty top waste tank
* Replace switch
‘CHARGING’ * Machine on charge.
MACHINE INHIBITED - NO OPERATION.
Contact Service Agent.
The TTV 4555 has a self contained trip meter, to view the meter turn the key to the ‘On’ position.
Press the mode button to cycle between the different modes (g 56).
T = Total time.
This meter counts when ever any function is being used, including the off asile function (see page 16) .
V = Vacuum total time.
B = Brush total time.
W= Water Pump total time.
Fig.56
LCD Display’ and fault codes
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