2/13 A - 23 56091053 - SC1500
ENGLISH - AINSTRUCTIONS FOR USE
GENERAL MACHINE TROUBLESHOOTING
Problem Possible Cause Remedy
Poor water pick-up
Worn or torn squeegee blades Reverse or replace
Squeegee out of adjustment
Adjust so blades touch fl oor evenly
across entire width
Recovery tank full Empty recovery tank
Recovery Tank Drain Hose (30) leak
Secure drain hose cap or replace
Recovery Tank Cover (13) gasket leak
Replace gasket / Seat cover properly
Debris caught in Squeegee (10)
Clean squeegee assembly
Recovery Hose between squeegee and recovery
tank clogged
Remove debris
Vacuum set to quiet mode Set vacuum to high
Poor scrubbing performance
Worn brush or pad Replace brush or pad
Wrong brush or pad type Consult Nilfi sk
Wrong cleaning chemical Consult Nilfi sk
Moving machine too fast Slow down
Not using enough solution Increase solution fl ow
Inadequate or no solution fl ow
Solution tank empty Fill solution tank
Solution lines, valves or fi lter (26) clogged
Flush lines and clean solution fi lter
Solution Shutoff Valve (27) closed
Open solution shutoff valve
Solution Solenoid Valve (25)
Clean or replace valve
Machine does not power ON
Machine Battery Connector (33) disconnected
Reconnect battery connectors
Tripped 5 Amp circuit breaker (E)
Check for electrical short circuit & reset
Key Switch (A) failure (contact Nilfi sk Authorized Service Center)
No FWD/REV wheel drive
Emergency Stop Switch (B) tripped
Reset the Emergency Stop Switch
Drive system speed controller
Check error fault codes
(contact Nilfi sk Authorized Service Center)
Tripped 50 Amp circuit breaker (D)
Check for drive motor overload
No Detergent Flow
Empty Detergent Container (3)
Fill detergent container
Plugged or kinked detergent fl ow line
Purge system, straighten lines to
remove any kinks
Detergent pump Check pump, wiring and lines
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