USER MANUAL
ENGLISH
9098960000(1)2011-04 A SCRUBTEC R 466 - R 471 - R 471C - BOOST
®
R4 29
TROUBLESHOOTING
TROUBLE POSSIBLE CAUSE REMEDY
The motors do not work; no warning light turns on.
The battery connector is disconnected. Connect.
The batteries are discharged. Charge the batteries.
The machine does not move and the display (71)
shows the error code:
The machine has been turned on by using the
ignition key and by keeping the pedal pressed.
Release the drive pedal.
If the problem persists, contact an authorised
Service Center.
At the machine start-up, the LED (64) of the
switch (63) fl ashes and the brushes do not work.
The machine has been turned off without
lifting the brush deck.
Wait for the deck to lift before turning on again
the brushes by pressing the switch.
The brushes do not work; the red warning light
fl ashes.
The batteries are discharged. Charge the batteries.
The 3 warning lights (62) fl ash simultaneously.
The brush motors are overloaded.
Use less aggressive brushes and/or avoid
working with extra pressure turned on.
There are foreign materials (tangled threads,
etc.) preventing the brushes from rotating.
Clean the brush hubs.
The display (71) shows an error code as:
where “00” is replaced by a code different from
“t4”.
The machine electronic control system is in
alarm condition.
Turn off the machine and then turn it on again.
If the problem persists, contact an authorised
Service Center.
The dirty water vacuuming is insuffi cient.
The recovery tank is full. Empty the tank.
The vacuum grid is clogged or the fl oat is
closing.
Clean the vacuum grid.
The container with debris collection grid is
clogged.
Clean.
The hose is disconnected from the squeegee. Connect.
The squeegee is dirty, or the squeegee blades
are worn or damaged.
Clean the squeegee or overturn/replace the
blades.
The tank cover is not properly closed, or the
gasket is damaged.
Correctly close the cover or clean/replace the
gasket.
The solution fl ow is insuffi cient.
The solution tank is empty. Refi ll.
The solution fi lter is dirty. Clean the fi lter.
The Chemical Mixing System tank (optional)
is dirty/clogged.
Clean with the drain cycle.
The squeegee leaves marks on the fl oor.
There are debris under the squeegee blades. Remove the debris.
The squeegee blades are worn, chipped or
torn.
Overturn or replace the blades.
The squeegee is not balanced with the
handwheel.
Adjust the squeegee.
NOTE
If the machine has a battery charger installed, the machine cannot operate if the charger is not on board. In case of
battery charger malfunction, contact an authorised Service Center.
For further information, contact Nilfi sk Alto Service Centers.
9098960000(1)2011-04 A.indb 299098960000(1)2011-04 A.indb 29 07/04/2011 15:59:2307/04/2011 15:59:23
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