Mechanical Faults; Error Table - Wilo Stratos GIGA Installation And Operating Instructions Manual

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11.1

Mechanical faults

Fault
Pump does not start or stops working Cable terminal loose
Pump runs at reduced performance
Noisy pump
11.2

Error table

Classification No.
- 0
System errors E004 Undervoltage
E005 Overvoltage
E006 2-phase operation
E007 Warning!
E009 Warning!
Pump errors E010 Blocking
Motor errors E020 Excess temperature,
E021 Motor overload
E023 Short circuit/earth
120
Cause
Fuses defective
Stop valve on the pressure side
throttled
Air in the suction line
Cavitation due to insufficient supply
pressure
Motor has bearing damage
Error Cause
No error
Mains overloaded
Mains voltage too high
Missing phase
The flow is driving the
Generator operation pump impeller; electrical
(flow in flow current is being fed back
direction) to the mains
The flow is driving the
Turbine operation pump impeller; electrical
(flow in flow current is being fed back
direction) to the mains
Shaft is mechanically
blocked
Motor overloaded
winding
Motor ventilation limited Provide unobstructed air
Water temperature too
high
Duty point outside of
duty chart
Deposits in the pump
Motor or electronic
leakage module defective
Remedy
Check all cable connections
Check fuses; replace faulty fuses
Slowly open the stop valve
Repair leaks on flanges, vent the pump,
change the mechanical seal in case of
visible leakage
Increase supply pressure, observe
minimum pressure at the suction port,
check slide valve and filter on the suction
side and clean if need be
Have the pump checked by Wilo
customer service or a specialised service
centre and repaired if necessary
Remedy
Check electrical installation
Check electrical installation
Check electrical installation
Check the setting, check
system for proper operation
Caution! Prolonged operation
can cause damage to the
electronic module
Check the setting, check
system for proper operation
Caution! Prolonged operation
can cause damage to the
electronic module
If the blocking has not been
removed after 10 seconds, the
pump switches off.
Check shaft for ease of
movement
Request customer service
Allow motor to cool down
Check settings
Check/correct the duty point
access
Lower water temperature
Check/correct the duty point
Request customer service
Request customer service
Error type
HV AC
C A
C A
C A
F F
F F
A A
B A
B A
A A
WILO SE 03/2018