English
27
WILO SE 05/2011
10 Faults, causes and remedies
DANGER! Risk of death!
Only a specialised and qualified personnel is authorized to repair!
Observe the safety instructions (see chapter 9).
Fault
ElectronicControl behaviour
Remedies
E011
DRY RUN
The ElectronicControl starts
the pump every 30 minutes
over 24 hours. If dry running
remains, it switches off the
pump.
Check the hydraulic supply.
If a set point pressure higher
than the pressure the pump
can deliver is programmed,
the ElectronicControl will
consider it as dry running.
E021
OVERLOAD
After the alarm detection the
ElectronicControl will try 4
times to start the pump. After
these 4 trials the pump is swit-
ched off.
Check that the rotor is not
locked.
Check the input data in the
ElectronicControl.
Check the state of the fuses..
E025
DISCONNECT MOTOR
Motor supply stop
Check the motor winding.
Check the supply cables.
Check the state of the 20A
fuses (Fig. 4, Pos. 4).
E040
P SENSOR DEFFECT
The ElectronicControl stops.Q
Contact the technical service
department:
E031
OVER T°
If the temperature is too high,
the ElectronicControl stops
and then the pump.
Check that the water tempe-
rature does not exceed 40°C.
Check that the ambient tem-
perature does not exceed
50°C.
E023
SHT CIRCUIT
After the alarm detection the
ElectronicControl will try 4
times to start the pump. After
these 4 trials the pump is swit-
ched off.
Check the motor.
If the problem remains, con-
tact the manufacturer.
E071
EEPROM
If the ElectronicControl
detects a defect on its internal
memory this error will be dis-
played.
Contact the technical service
department:
E005
HIGH VOLTAGE
If the ElectronicControl
detects an overvoltage, it
stops over some seconds and
then starts again.
Check the ElectronicControl
supply voltage.
1_Wilo-ElectronicControl.book Seite 27 Montag, 11. Juli 2011 3:14 15
