Fig. 10: Fault code E1
No. Fault description Cause Remedy
E1 Empty signal Empty signal is present.
n Refill detergent.
n Check the suction lance.
Fig. 11: Fault code E2
No. Fault description Cause Remedy
E2 Maximum proportioning time
exceeded
No detergent is being
proportioned.
n Check the detergent.
n Check the metering lines on the suction and
pressure sides.
n Check the settings.
Fig. 12: Fault code E3
No. Fault description Cause Remedy
E3 Detergent overdosage The maximum permitted conductivity
has been exceeded.
n Check whether the installed pump matches the
settings or system.
n Check the settings.
Malfunctions and troubleshooting
70MAN049432 Rev. 03-03.2024
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