Nilfisk-ALTO SCRUBTEC R 466, Service Manual, Page: 113 / 142

Solution System 113 Service Manual – SCRUBTEC R466 ... FOCUS II Micro Rider
Troubleshooting (continued)
Trouble Possible Causes Remedy
Small amount of Chemical Mixing System
detergent or no detergent reaches the
brush
The detergent flow percentage is too low Check/change the percentage as
shown in the User Manual
The hydraulic circuit upstream of the detergent pump is
not triggered
Check if the hose is filled and, if
necessary, perform one or more
draining cycles
The pump (M1) is broken or there is an open in the
electrical connection
Replace the pump/repair the
electrical connection
There is foreign material/debris in the detergent tank
clogging the output hole
Clean the tank
There is debris in the detergent hoses clogging the
detergent flow
Clean the hoses
The detergent flow control push button is
malfunctioning
Check that the LED turns on,
otherwise replace the dashboard
electronic board (EB3)
The function electronic board (EB1) is faulty Replace
The display electronic board (EB2) is faulty Replace
The dashboard electronic board (EB3) is faulty Replace
The Chemical Mixing System detergent
reaches the brush also when the
machine is off
The pump (M1) is broken Replace
The one-way valve is broken Replace
There is water in the Chemical Mixing
System tank
The one-way valve is broken Replace
The Chemical Mixing System does not
turn and the LED does not turn on
The dashboard electronic board (EB3) is faulty Replace
The function electronic board (EB1) is not set for the
operation with Chemical Mixing System
If equipped, remove the jumper
wire (J8) on the back of the
electronic board
J8
J4
P100749