Nilfisk-Advance Condor XL, Руководство по обслуживанию

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189
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Problem Cause Correction
No solution to the
main brushes in
the extended scrub
mode The extended scrub function
is not installed in the
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Install the extended scrub function in the
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Solution pump(s) over
current (fault code 00
displayed)
‡
Check the M6 extended scrub pump wiring for
problems; M6 wire colors (+GRN/BRN and - GRA/
ORN).
‡
Check the pump current draw (11.5 amps max.)
and replace as necessary.
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switch (S7) is not open to
J1-33 on the Driver Box.
The switch should be closed when the recovery tank
is empty, and open when there is an adequate water
supply in the recovery tank.
If the continuity through the switch in its open and
closed positions is not correct:
1. Check the wiring and repair as necessary.
2. If the wiring is OK, replace the switch.
No voltage to the extended
scrub pump 1. Check pump motors for short circuits and replace
as necessary. Check the wiring and circuit
breakers upstream of the pump.
2. Check the J2-35 output from the Driver Box.
The stainer in the recovery
tank is dirty or plugged. Remove and clean the strainer.
Note: The Solution Pump (-) line provides a switched ground return for the pump.
When the solution pump is “ON” a 7.8 KHz signal with a varying duty cycle and
average voltage will appear between pin J3-2 and B+. Measuring with a DC
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solution bars on the LCD should produce a relative increase or decrease of the
meter reading.
No solution to the
right side brush Right side solution solenoid
valve over current (fault
code 08 displayed)
‡
Check L11 solenoid coil wiring for problems
(+ ORN and - BLU/YEL).
‡
Check coil resistance. If less than 10 ohms,
replace.
Inadequate solution
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brush
Plugged solution hose and/
or nozzle Check and clear/clean the solution hoses and
nozzles as necessary.