Faults, Causes And Remedies; Mechanical Faults - Wilo Stratos GIGA Serie Instrucciones De Instalación Y Funcionamiento

11

Faults, causes and remedies

Fault displays
Legend
11.1

Mechanical faults

Fault
Pump does not start or stops working Cable terminal loose
Pump is running at reduced output
Pump is making noise
Installation and operating instructions Wilo-Stratos GIGA
• The fan wheel has to be pressed on as far as possible when it is
installed. Only press here in the area of the hub.
Have faults remedied by qualified personnel only! Observe the
safety instructions in chapter 10 "Maintenance" on page 48.
• If the malfunction cannot be rectified, consult a specialist techni-
cian or the nearest customer service or representative office.
For faults, causes and remedies, see the "Fault/warning signal" flow
diagram (see chapter 11.3 "Acknowledging errors" on page 59, Fig. 50
- Fig. 55) and the following tables. The first column of the table lists
the code numbers displayed in the event of a fault.
NOTE:
If the cause of the fault no longer exists, some faults resolve them-
selves automatically.
The following types of errors can occur with differing priorities (1 =
lowest priority; 6 = highest priority):
Error type Explanation
A Permanent error
B Permanent error on the 6th occurrence
C Warning,
after 5 min, transition to an error
permanent error on the 6th occurrence
D Like error type A, but error type A has a higher
priority than error type D
E Emergency operation: warning with emer-
gency operation speed and activated SSM
F Warning
Cause
Fuses faulty
Stop valve on pressure side throttled Slowly open the stop valve
Air in the suction line
Insufficient supply pressure
Motor has bearing damage
Remedy
Check all cable connections
Check fuses; replace defective fuses
Seal leaks at the flanges; bleed
Increase supply pressure, observe mini-
mum pressure at the suction port, check
slide valve and filter on the suction side
and clean if necessary
Have the pump checked by Wilo cus-
tomer service or a specialized service
center and serviced if necessary
English
Priority
6
5
4
3
2
1
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