Wilo Helix V 2 Einbau- Und Betriebsanleitung Seite 20

English
10. Faults, cause and remedies
WARNING! Electrical shock hazard!
Dangers caused by electrical energy must be
excluded.
All electrical work must be performed after the
electrical supply has been switched off and
secured against unauthorized switching.
WARNING! Risk of scalding!
At high water temperatures and system pressure
close isolating valves before and after the pump.
First, allow pump to cool down.
Faults
Pump does not run
Pump runs but delivers too little
Pump delivers unevenly
Pump vibrates or is noisy
Motor overheats, its protection trips out
Mechanical seal is leaking
If the fault cannot be solved, please
contact the Wilo customer services.
11. Spare parts
Spare parts may be ordered via the Wilo custom-
er service.
To avoid queries and incorrect orders, all data
from the rating plate must be specified with
every order.
The spare parts catalogue is available at www.
wilo.com.
12. disposal
Information on the collection of used electrical
and electronic products
Proper disposal and appropriate recycling of this
product prevents damage to the environment
and dangers to your personal health.
20
Cause
No current
The thermistor tripping device has trip-
ped out, cutting off power
Wrong direction of rotation
Parts of the pump are obstructed by for-
eign bodies
Air in suction pipe
Suction pipe too narrow
The valve is not open far enough
Air in pump
Foreign bodies in pump
Pump not properly attached to ground
Bearing damaged
A phase is open-circuit
Ambient temperature too high
Mechanical seal is damaged
• Only hand over these products at designated,
• Observe the locally applicable regulations!
Remedies
Check the fuses, the wiring, and the
connectors
Eliminate any cause of overloading of the
motor
Check the direction of rotation of the
motor and correct it if necessary
Check and clean the pipe
Make the suction pipe airtight
Install a larger suction pipe
Open the valve properly
Evacuate the air in the pump; check that
the suction pipe is airtight. If required,
start the pump 20-30s – open the air
bleed screw in order to move air away
– close the air bleed screw and repeat it
several times until no more air is going
out of the pump
Remove the foreign bodies
Retighten the screws
Call the Wilo Customer Service
Check the fuses, the wiring, and the
connectors
Provide cooling
Replace the mechanical seal
NOTICE: Disposal in domestic waste is forbid-
den !
In the European Union, this symbol can appear
on the product, the packaging or the accompa-
nying documentation. It means that the electrical
and electronic products in question must not be
dis- posed of along with domestic waste.
To ensure proper handling, recycling and disposal
of the used products in question, please note the
following points:
certified collecting points.
Please consult your local municipality, the near-
est waste disposal site, or the dealer who sold
the product to you for information on proper
disposal. For further information on recycling, go
to www.wilo-recycling.com.
Subject to technical alterations!
WILO SE 05/2020