Troubleshooting - Nilfisk Advance SC901 ST Serie Mode D'emploi

A - ENGLISH
GENERAL MACHINE TROUBLESHOOTING
Problem
Poor water pick-up
Poor scrubbing performance
Inadequate solution fl ow
or no solution
Machine does not run
No FWD/REV wheel drive
Poor Sweeping Performance
(Cylindrical System)
No Detergent Flow (EcoFlex models only)
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INSTRUCTIONS FOR USE
Possible Cause
Worn or torn squeegee blades
Squeegee out of adjustment
Squeegee seal clogged or missing
Recovery tank full
Recovery tank drain hose leak
Recovery tank cover gasket leak
Debris caught in squeegee
Vacuum hose clogged
Using too much solution
Debris catch cage full
Worn brush or pad
Wrong brush or pad type
Wrong cleaning chemical
Moving machine too fast
Not using enough solution
Solution tank empty
Solution lines, valves, fi lter or trough
clogged
Solution shutoff valve closed
Solution solenoid valve
Battery connector disconnected
Tripped 2.5 Amp circuit breaker
Drive system speed controller
Tripped 30 Amp circuit breaker
Hopper Full
Brushes worn
Bristles have taken a set
Empty detergent cartridge
Plugged or kinked detergent fl ow line
Dry seal cap on detergent cartridge not
sealed
Detergent pump wiring
disconnected or backwards
SC901 ST - 56091217
Remedy
Reverse or replace
Adjust so blades touch fl oor evenly
across entire width
Clean or replace squeegee seal
Empty recovery tank
Secure drain hose cap or replace
Replace gasket / Seat cover properly
Clean squeegee tool
Remove debris
Adjust solution fl ow at control panel
Empty debris catch cage
Rotate or replace brushes
Consult Advance
Consult Advance
Slow down
Increase solution fl ow at control panel
Fill solution tank
Flush lines, trough and clean solution fi lter
Open solution shutoff valve
Clean or replace valve
Reconnect battery connectors
Check for electrical short circuit & reset
Check error fault codes
(see service manual)
Check for drive motor overload
Empty and clean hopper
Replace brushes
Rotate brushes
Fill detergent cartridge
Purge system, straighten lines to
remove any kinks
Reseat dry seal cap
Connect or reconnect wiring
3/2019