Wilo Para Notice De Montage Et De Mise En Service page 46

10.1
LED Faults
Blocking
Lights
Contacting/
up red
winding
Under/
overvoltage
Flashes Excessive
red temperature of
module
Short-circuit
Generator
operation
Dry run
Flashes
Overload
red/
green
46
Fault signals
• The fault signal LED indicates a fault.
• The pump switches off (depending on the fault) and
attempts a cyclical restart.
Causes
Rotor blocked
Winding defective
Power supply too low/
high on mains side
Module interior too
warm
Motor current too high
Water is flowing
through the pump
hydraulics, but there is
no mains voltage at the
pump
Air in the pump
Sluggish motor, pump
is operated outside of
its specifications
(e.g. high module
temperature). The
speed is lower than
during normal
operation.
Remedy
Activate manual
restart or contact
customer service
Check mains
voltage and
operating
conditions, and
request customer
service
Check mains
voltage, flow rate/
pressure and
ambient conditions
Wilo SE 08/2017