Fault Signals - Wilo -Stratos PICO series Einbau- Und Betriebsanleitung

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10.1 Fault signals

Code Faults
no.
E04 Undervoltage
E05 Overvoltage
E10 Blocking
E11 Dry run
E21 Overload
E23 Short-circuit
E25 Contacting /
winding
E30 Module over-
temperature
E36 Out-of-step
If the fault cannot be remedied, please consult a specialist
technician or the Wilo factory after-sales service.
Subject to change without prior notice!
28
Causes
Power supply too low
on mains side
Power supply too
high on mains side
Rotor blocked
Air in the pump
Sluggish motor
Motor current too
high
Winding defective
Module interior too
warm
Motor errors
Remedy
Check mains voltage
Check mains voltage
Ask After-Sales
Check water quan-
tity/pressure
Ask After-Sales
Ask After-Sales
Ask After-Sales
Check operating con-
ditions in chapter 5.2
Ask After-Sales
WILO SE 10/2009