6. MAINTENANCE/FAULTS
Fault signals
Code
Fault
E 04
Undervoltage
E 05
Overvoltage
E 07
Generator operation
E 10
Blocking
E 11
Dry running
E 21
Overload
E 23
Short-circuit
Contacting/
E 25
winding
E 30
Module overheated
E 36
Module defective
36
Cause
Power supply too low on mains
side.
Power supply too
high on mains side.
Water is flowing
through the pump
hydraulics, but pump
has no mains voltage.
The rotor is blocked
Air in the pump
Sluggish motor
Motor current too
high
Winding defective
Module interior too
warm
Electronic components
defective
Remedy
Check mains voltage.
Check mains
voltage.
Check mains
voltage.
Contact specialist
technician
Check water quantity/
pressure.
Contact specialist
technician
Contact specialist
technician
Contact specialist
technician
Check operating
conditions in chapter
2.
Contact specialist
technician
GB
GB