Wilo Stratos PICO-Z - Page 39

Installation and operating instructions Wilo-Stratos PICO-Z
39
English
Fault signals
If the fault cannot be remedied, contact a qualified spe-
cialist technician or Wilo customer service.
LED Faults Causes Remedy
E04 Undervoltage Power supply too low on
mains side
Check mains
voltage
E05
Overvoltage Power supply too high on
mains side
Check mains
voltage
E10
Blocking Rotor blocked Request customer
service
E11
Dry running
warning
Air in the pump Check volume
flow/water pres-
sure
E21
Overload Sluggish motor Request customer
service
E23
Short-circuit Motor current too high Request customer
service
E25
Contacting/
winding
Winding defective Request customer
service
E30
Module over-
temperature
Module interior too warm Check conditions
of use
E36
Module defective Electronics defective Request customer
service