Wilo SiBoost Smart Helix V Series - 11 Spare Parts

English
Installation and operating instructions Wilo-SiBoost Smart (FC) ... Helix V/... Helix VE/... Helix EXCEL 45
You will find information on pump or control
device faults not dealt with here in the attached
documentation for the components concerned.
If the operating fault cannot be remedied,
please consult a specialist technician or the
nearest Wilo customer service office or repre-
sentative.
11 Spare parts
Spare parts or repairs may be ordered from local
specialist retailers and/or Wilo-customer service.
In order to avoid queries and incorrect orders, all
data on the rating plate should be submitted for
each order.
Technical information subject to change with-
out prior notice!
Motor protection switch triggers
Volume flow too large Check pump data and default values and
correct if necessary
Contactor defective Check and replace if necessary
Turn-to-turn fault in motor Check, if necessary replace motor or
have repaired
Mains voltage: a phase is missing Check fuses, cables and connections
Pump(s) produces no or too little power
Major fluctuations in Intake pressure Check intake pressure, if necessary take
measures to stabilise supply pressure
(e.g. pressure reducer)
Intake pipe blocked or shut off Check inlet pipe, if necessary remove
blockage or open check valve
Nominal diameter of inlet pipe too small Check the inlet pipe, increase the cross-
section for the inlet pipe if necessary
Inlet pipe incorrectly installed Check inlet pipe, if necessary change
pipe guide
Air in inlet Check, if necessary seal pipe. Vent
pumps
Impellers blocked Check pump, if necessary replace or have
repaired
Non-return valve leaking Check, if necessary replace seal or
replace non-return valve
Non-return valve blocked Check, if necessary remove blockage or
replace non-return valve
Gate valve in system closed or not suf-
ficiently open
Check, open the check valve completely
if necessary
Low-water level switch has triggered Check intake pressure
Pump(s) produces no or too little power
Direction of motor rotation false Check direction of rotation and correct
by changing over phases if necessary
Turn-to-turn fault in motor Check, if necessary replace motor or
have repaired
Dry-running protection system switches
off, although water is present
Major fluctuations in Intake pressure Check intake pressure, if necessary take
measures to stabilise supply pressure
(e.g. pressure reducer)
Nominal diameter of inlet pipe too small Check the inlet pipe, increase the cross-
section for the inlet pipe if necessary
Inlet pipe incorrectly installed Check inlet pipe, if necessary change
pipe guide
Volume flow too large Check pump data and default values and
correct if necessary
Electrodes incorrectly connected or sup-
ply pressure switch incorrectly set
Check installation or setting and correct
Low-water level switch defective Check, if necessary replace the low-
water level switch
Dry-running protection does not switch
off, although water low
Electrodes incorrectly connected or sup-
ply pressure switch incorrectly set
Check installation or setting and correct
Low-water level switch defective Check, if necessary replace the low-
water level switch
Rotation direction warning light on (not
for all pump types)
Direction of motor rotation false Check direction of rotation and correct
by changing over phases if necessary
Fault Cause Remedy