Fault Signals - Wilo -Stratos PICO Series Installation And Operating Instructions Manual

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10.1 Fault signals

Code Faults
no.
E04 Undervoltage
E05 Overvoltage
E10 Blocking
E11 Warning signal
Dry run
E21 Overload
E23 Short-circuit
E25 Contacting/
winding
E30 Module
overheat
E36 Module
defective
If the fault cannot be remedied, please consult the specialist
technician or the Wilo factory after-sales service.
20
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
Electronic compo-
nents defective
Remedies
Check mains voltage.
Check mains voltage.
Contact customer
service
Check water
quantity/pressure.
Contact customer
service
Contact customer
service
Contact customer
service
Check operating con-
ditions in chapter 5.2
Contact customer
service
WILO SE 11/2015