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Installation and operating instructions Wilo-VeroLine IP-E, Wilo-VeroTwin DP-E
87
11.2
Error table
Classification No.
Error
Cause
Remedy
Error type
HV
AC
-
0
No error
System
errors
E004
Undervoltage
Mains overloaded
Check electrical installation
C
A
E005
Overvoltage
Mains voltage too high
Check electrical installation
C
A
E006
2-phase operation
Missing phase
Check electrical installation
C
A
E007
Generator operation
(flow in flow direction)
The flow is driving the
pump impeller; electrical
current is being fed back
to the mains
Check the setting, check sys-
tem for proper operation
CAUTION! Prolonged opera-
tion can cause damage to the
module
F
F
Pump errors
E010
Blocking
Shaft is mechanically
blocked
If the blocking has not been
removed after 10 s, the pump
switches off;
Check shaft for ease of move-
ment
Contact customer service
A
A
Motor errors
E020
Excess winding tem-
perature
Motor overloaded
Allow motor to cool off, check
settings, check/correct duty
point
B
A
Motor ventilation limited
Provide unobstructed air
access
Water temperature too
high
Lower water temperature
E021
Motor overload
Duty point outside of
duty chart
Check/correct the duty point
B
A
Deposits in the pump
Contact customer service
E023
Short circuit/earth
leakage
Motor or module defec-
tive
Contact customer service
A
A
E025
Faulty contact
Module has no contact to
motor
Contact customer service
A
A
Winding interrupted
Motor defective
Contact customer service
E026
WSK or PTC inter-
rupted
Motor defective
Contact customer service
B
A
Module
errors
E030
Excess module tem-
perature
Limited air supply to
module heat sink
Provide unobstructed air
access
B
A
E031
Excess hybrid/power
section temperature
Ambient temperature too
high
Improve room ventilation
B
A
E032
Intermediate circuit
undervoltage
Voltage fluctuations in
the mains
Check electrical installation
F
D
E033
Intermediate circuit
overvoltage
Voltage fluctuations in
the mains
Check electrical installation
F
D
E035
DP/MP: multiple
instances of same
identity
Multiple instances of
same identity
Reallocate master and/or slave
(see Section 9.2 on page 81)
S
S
Communica-
tion errors
E050
BMS communication
time-out
Bus communication
interrupted or timed out
Cable break
Check cable connection to
building automation
F
F
E051
Impermissible DP/MP
combination
Different pumps
Contact customer service
F
F
E052
DP/MP communication
time-out
Cable MP communication
defective
Check cable and cable connec-
tions
S
S
Electronics
errors
E070
Internal communica-
tion error (SPI)
Internal electronics error
Contact customer service
A
A
E071
EEPROM error
Internal electronics error
Contact customer service
A
A