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Beschikbare talen
Beschikbare talen
12
Spare parts
13
Disposal
13.1
Oils and lubricants
13.2
Information on the collection of
used electrical and electronic
products
Installation and operating instructions • Wilo-VeroLine-IPL-Z, Wilo-VeroTwin-DPL-Z • Ed.01/2024-07
Faults
Causes
Incorrect direction of rota-
tion.
Stop valve on the pressure
side throttled.
Pump runs at reduced
Speed too slow
performance.
Air in the suction line
Cavitation due to insufficient
suction pressure.
Motor has bearing damage.
Pump makes noises.
Impeller grinding.
Table 9: Faults, causes and remedies
Obtain original spare parts only from a qualified installer or Wilo customer service. To avoid
queries and order errors, please provide all pump and drive rating plate data with every or-
der.
CAUTION
Risk of material damage!
Trouble-free pump operation can only be guaranteed when original
spare parts are used.
Use only original Wilo spare parts!
Information to be provided when ordering spare parts: Spare part num-
bers, spare part designations, all data from pump and drive rating plate.
This helps prevent return queries and incorrect orders.
Operating fluids must be collected in suitable containers and disposed of in accordance
with the locally applicable guidelines. Wipe up drips immediately!
Proper disposal and appropriate recycling of this product prevents damage to the environ-
ment and danger to your personal health.
NOTICE
Disposal in domestic waste is prohibited!
In the European Union this symbol may be included on the product, the
packaging or the accompanying documentation. It means that the elec-
trical and electronic products in question must not be disposed of along
with domestic waste.
en
Remedies
Check the direction of rotation
and change it if necessary.
Slowly open the stop valve.
Incorrect terminal bridging (Y in-
stead of Δ).
Eliminate leakage at flanges.
Vent pump. In case of visible
leakage, replace the mechanical
seal.
Increase the suction pressure.
Observe the minimum inlet pres-
sure at the suction port. Check
slide valve and filter on the suc-
tion side and clean if need be.
Have the pump checked by Wilo
customer service or a specialised
service centre and repaired if ne-
cessary.
Check faces and centrings and
between lanterns and motor and
lantern and pump housing, clean
if necessary.
Check the coupling and shaft
sliding surfaces. If necessary,
clean and slightly oil them.
65
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