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3.4 Solution delivery system: what to do if. . .
The delivered solution is not correct or not enough
1) The machine is switched off ⇒ Switch on the machine.
2) The machine doesn’t switch on ⇒ Refer to the proper section (see section
3.1 at page 8).
3) The solution tank is empty ⇒ Fill up the solution tank.
4) The proportional valve for the solu-
tion flow adjustment is completely
closed
⇒ Open the proportional valve to the
desired position.
5) (Only B-BT) The water flow is ad-
justed at minimum
⇒ Increase the water flow adjustment.
6) The solenoid valve doesn’t work ⇒ Check the solenoid valve connec-
tions and, if necessary, replace it (see
section 4.5.5 at page 37).
7) The solution filter is stuck ⇒ Clean the solution filter.
8) The display shows an alarm mes-
sage
⇒ Refer to the proper section (see section
5.13.1 at page 54).
9) The detergent doesn’t fit the type of
dirt
⇒ Replace the detergent with a proper
one.
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