Drive motor overheated Turn off the machine and wait for a
few minutes
Heat sensor damaged Replace heat sensor
Damaged drive board Replace drive board
Motor malfunction Replace the motor
Accelerator potentiometer
malfunction
Replace potentiometer
9.2. How to resolve possible problems 512 – 712
PROBLEM CAUSE SOLUTION
Battery disconnected
Connect the battery to the machine
The battery is flat. Recharge the battery
The key switch (fig. C, ref. 1) is in
the 0 position
Turn the key switch (fig. C, ref. 1)
to the "1" position.
No petrol Fill the machine
The machine does not
function
Fuse FU4 blown Replace fuse FU4
Fan switch on OFF (fig. C, ref. 2) Press the fan switch (fig. C, ref. 2)
Motor malfunction Replace the motor
Suction motor does not
function
Fuse blown Replace fuse
Motor malfunction Replace the motor
The centre brush does
not turn
Filter shaker switch not pressed (fig.
C, ref. 4)
Press the filter shaker switch (fig.
C, ref. 4)
Filter shaker motor faulty Replace filter shaker motor
Filter shaker not working
Side brush does not turn
Damaged belt Replace the belt
Side flaps damaged Replace flaps
The machine raises dust
Bin full Empty the bin
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