Fault Signals - Air-Conditioning Ac Operating Mode - Wilo Stratos Serie Instrucciones De Instalación Y Funcionamiento

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10.2 Fault signals – Air-conditioning AC operating mode
• A fault occurs.
• The pump goes off, the fault signal LED (continuous red light) is activated. The
error message appears on the display, fault contact (FC) opens. Then, the fault
needs to be reset by hand.
Double pump: The standby pump is switched on.
• The transmission of the fault via the serial digital interface depends on the type
of IF Module.
For details, see the documentation (Installation and operating instructions of
the IF Module).
NOTE: Code-nos. "E04" (mains undervoltage) and "E05" (mains overvoltage)
are treated as faults only in AC operation and lead to immediate deactivation.
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
Table 10.1: Fault signals
38
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!
cause
Mains overloaded
Faulty supply by the
electricity supply
company
i.e. sedimentation
Motor overloaded
Water temperature
to high
Sediment in the
pump
Motor defect
Module not correctly
installed
Limited air supply to
the dissipator of the
module
Ambient
temperature to high
Electronic
components faulty
remedies
Check electrical
installation
Check electrical
installation
De-blocking routine
starts automatically.
Pump switches off if
blockage is not cleared
within max.40
seconds.
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 SE 03/2016