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Wilo Stratos Serie Einbau- Und Betriebsanleitung Seite 55

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Table I
Problem
Pump does not run with
switched on power
Noisy pump operation
8.1
Error messages:
Code
Symbol
Nr.
flashing
E04
Supply terminal Mains undervoltage
E05
Supply terminal Mains overvoltage
E10
Motor
E20
Motor
E21
Motor
E23
Motor
E25
Motor
E30
Modul
E31
Module
E36
Module
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Electric fuse faulty,
Pump has no power
Cavitation due to insufficient
admission pressure
Error LED "permanent light"
Problem
Pump blocked
winding overheated
Motor overload
Short circuit/contact fault Motor defect
Contact error
Excess temperature
module
Excess temperature
power component
Module faulty
cause
cause
Mains overloaded
e.g. sedimentation
Motor overloaded
Ambient temperature to high Reduce water temperature
Sediment in the pump
Module not correctly installed Reinstall module
Air intake to module
heat sink is blocked
Ambient temperature to high Improve ventilation in room
Electronic components faulty Call customer service / swap
ENGLISH
remedies
Check fuse
Rectify interruption to power
Increase
system
pressure
within permissible range
Check pump lift setting, if nec. set
lower lift
remedies
Check electrical installation
Check electrical installation
De-blocking routine starts
automatically. Should this not
remove the blockage, the
pump switches off after
10 sec.
Call customer services
Let motor cool down,
check the settings
Call customer services
Call customer services
Free air intake
module
admission
49

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