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