Solution System - Cable Version 89Service Manual – SC450
Troubleshooting
Trouble Possible Causes Remedy
Small amount of solution or no solution
reaches the brush
The tank lter (optional) is clogged/dirty Clean the lter
The solution lter is clogged/dirty Clean
The solenoid valve (EV1) is faulty or the electrical
connection is open
Replace the solenoid valve or
repair the electrical connection
There is dust/debris in the tank or in the detergent hoses,
obstructing the solution ow
Clean the tank/hoses
The solution reaches the brush also
when the machine is off
There is dirt or calcium deposit on the solenoid valve
gaskets (EV1)
Clean the solenoid valve inner
gaskets
The solenoid valve (EV1) is broken Replace the solenoid valve
Specications
Descriptions / Model
Nilsk
SC450 53E
Solution tank capacity 10.5 US gal (40 liters)
Min/max solution ow 0.105/0.422 gpm (0.4/1.6 liters/min)
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