30 - Solution System 56Service Manual – SC250, Scrubtec 334, MA 30
Troubleshooting
Trouble Possible Causes Remedy
The solution push-button LEDs ash Solution tank empty Fill the tank
Small amount of solution or no solution
reaches the brush
Solution dispensers clogged. Clean the solution dispensers.
Solution lter clogged/dirty Clean the lter
Water pump (PM) broken or electrical connection
interrupted
Replace the pump/repair the
electrical connection
Presence of debris in solution tank blocking the outlet
valve
Clean the tank and the valve
Main machine controller (EB1) faulty Replace
Main control board (EB2) faulty Replace
The solution reaches the brush also when
the machine is off
Dirt or scale in water pump (PM), or else it is broken Replace
Water Pump Voltage and Cleaning Check
Water Pump Voltage Check
1. Remove the tanks assembly from the machine.
2. Open the rear cover.
3. Unscrew the screw (A) and remove the function main machine controller protection cover (B).
Figure 6
A
B
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