37
GB
10.1 Faults, causes and remedies
• The fault signal LED indicates a fault.
• The pump switches off (depending on the fault) and attempts a cyclical restart.
LED
FAULTS
CAUSES
REMEDY
Lights
up red
Blocking
Rotor blocked
Activate manual
restart or contact
customer service
Contacting/winding
Winding defective
Under/overvoltage
Power supply too low/high
on mains side
Excessive module
temperature
Module interior too warm
Short-circuit
Motor current too
high
Flashes red/
green
Generator operation
Water is flowing through
the pump hydraulics, but
there is no mains voltage
at the pump
Check the mains voltage,
water quantity/pressure
and the ambient conditions
Dry run
Air in the pump
Overload
Sluggish motor, pump is
operated outside of its
specifications (e.g. high
module temperature).
The speed is lower than
during normal operation