English
Installation and operating instructions Wilo-Control SC-Booster (SC, SC-FC, SCe)
73
10 Faults, causes and remedies
Have faults remedied by qualified personnel
only! Observe the safety instructions in the
Safety chapter.
10.1 Fault display and acknowledgement
If a fault occurs, the red fault signal LED lights up,
the collective fault signal is activated and the fault
is displayed on the LCD (fault code number).
A faulty pump is indicated on the main screen by
a flashing status symbol for the corresponding
pump.
The fault can be acknowledged in menu 6.1.0.0 by
the following operation:
Fig. 7: Error acknowledgement sequence
10.2 History memory for the faults
A history memory has been set up for the switch-
gear and operates according to the FIFO principle
(first-IN, first-OUT). The memory is configured for
16 faults.
The error memory can be called up using menus
6.1.0.1 – 6.1.1.6.
If the fault cannot be remedied, please contact
your nearest Wilo customer service point or rep-
resentative.
11 Spare parts
Spare parts are ordered via local specialist retailers
and/or
Wilo customer service. To avoid queries
and incorrect orders, all data of the rating plate
should be submitted for each order.
Code
Error description
Causes
Remedy
E40
Sensor faulty
Pressure sensor defective
Renew sensor
No electrical connection to the sensor Repair electrical connection
E60
Maximum pressure
exceeded
The output pressure of the system
has risen above the value set in menu
5.4.1.0 (e.g. due to a controller fault)
Check controller function
Check installation
E61
Pressure below mini-
mum value
The output pressure of the system
has dropped below the value set in
menu 5.4.2.0 (e.g. due to a pipe burst)
Check whether the set value corre-
sponds to local conditions
Check pipe and repair if necessary
E62
Low water
Protection against low water level has
tripped
Check inlet/preliminary tank; pumps
restart automatically
E80.1 – E80.4
Fault pumps 1...4
Winding overtemperature (WSK/ PTC) Clean cooling fins; motors are
designed for an ambient temperature
of +40 °C (see also installation and
operating instructions of the pump)
Motor protection has tripped (over-
current or short-circuit in the supply
line)
Check the pump and supply line (in
accordance with the installation and
operating instructions of the pump)
Collective fault signal of the pump/
frequency converter has been acti-
vated (only SCe version)
Check the pump and supply line (in
accordance with the installation and
operating instructions of the pump)
E82
Fault frequency con-
verter
Frequency converter has signalled a
fault
Read off fault on frequency converter
and act in accordance with FC oper-
ating instructions
Motor protection of frequency con-
verter has tripped (e.g. short-circuit
of FC mains power cable; overload of
the connected pump)
Check mains power cable and repair it
if necessary; check pump (in accord-
ance with the installation and operat-
ing instructions of the pump)
