Wilo Stratos Notice De Montage Et De Mise En Service page 34

English
Table I
Problem
Pump does not run
with switched on
power
Noisy pump operation
10.3 Error messages: Error LED "permanent light"
Code Symbol
No. flashing
E04 Supply
terminal
E05 Supply
terminal
E10 Motor
E20 Motor
E21 Motor
E23 Motor
E25 Motor
E30 Module
E31 Module
E36 Module
34
cause
Electric fuse faulty,
Pump has no power
Cavitation due to insufficient
admission pressure
Problem
Mains undervoltage
Mains overvoltage
Pump blocked
winding overheated
Motor overload
Short circuit/contact
fault
Contact error
Excess temperature
module
Excess temperature
power component
Module faulty
Subject to technical alterations!
remedies
Check fuse
Rectify interruption to power
Increase system admission
pressure within permissible
range
cause
Mains overloaded
e.g. sedimentation
Motor overloaded
Ambient
temperature to high
Sediment in the
pump
Motor defect
Module not correctly
installed
Air intake to module
heat sink is blocked
Ambient
temperature to high
Electronic
components faulty
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
Reduce water
temperature
Call customer services
Call customer services
Reinstall module
Free air intake
Improve ventilation in
room
Call customer service /
swap module
WILO AG 05/2007