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ENGLISH
ENGLISH
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11.
TROUBLESHOOTING
11.1. How to overcome possible failures
Possible failures affecting the whole machine
FAILURES CAUSES
REMEDIES
The machine does not work
• the emergency button is
pressed or faulty
• insert the key, turn and
release or replace the button
• the batteries are flat
• recharge the batteries
•
the
battery
connector
microswitch is out of calibration
or faulty;
• calibrate or replace
• the power fuse
FU1
and/or the
control fuse
FU5
have blown
• check and remove the
causes that made the fuse
blow, then replace it
• the battery charger connector is
connected to the battery wiring
connector
• disconnect the battery
charger from the battery
wiring connector
The brushes do not turn
• the machine has been switched
off and then on again with the
head lowered
• press the drive lever
• the brush motor thermal
protection has tripped: the motor
has become overheated
• release the drive lever; raise
the brushes by pressing the
brush up-down button; leave
the machine to cool for at
least 45’
• the power fuse
FU1
and/or the
control fuse
FU5
have blown
• check and remove the
causes that made the fuse
blow, then replace it
• the brush motor activation
microswitch is out of calibration
or faulty
• check and remove the
causes that made the fuse
blow, then replace it
• the batteries are flat (with
function
FU6
enabled, i.e.
without related fuse)
• raise the head and recharge
the batteries
• the drive is released (with
function
FU6
enabled, i.e.
without related fuse)
• pull the drive lever
• fault in the board permitting use
of the brush function (with
function
FU6
enabled, i.e.
without related fuse)
• temporarily insert fuse
FU6
to bypass the card and
continue working, then have
the card replaced so that the
brush function can be used
again
• the head is in the rest position
• lower the h
ead by pressing
the brush up-down button
• check the components (brush
motors, brush motor relay,
connectors)
• have the faulty component
replaced
Buzzer sound (brush stop
alarm)
• the brush stop with head low
alarm has cut in, indicating that
the head may be on the ground
with the brushes stopped, with
the risk of damaging them
• raise the head and then
lower normally
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