Installation and operating instructions 27
English
Fault signals
Code Fault Cause Remedy
E 04 Undervoltage Power supply too
low on mains side.
Check mains
voltage.
E 05 Overvoltage
Power supply too
high on mains side.
Check mains
voltage.
E 07 Generator
operation
Water is flowing
through the pump
hydraulics, but pump
has no mains volt-
age.
Check mains
voltage.
E 10 Blocking The rotor is blocked Contact specialist
technician
E 11 Dry running Air in the pump Check water quan-
tity/pressure.
E 21 Overload Sluggish motor Contact specialist
technician
E 23 Short-circuit Motor current too
high
Contact specialist
technician
E 25 Contacting/
winding
Winding defective Contact specialist
technician
E 30 Module over-
heated
Module interior too
warm
Check operating
conditions in chapter
2.
E 36 Module defec-
tive
Electronic compo-
nents defective
Contact specialist
technician