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English
9. Problems, Causes and Remedies
If the fault cannot be remedied, please
contact your plumbing and heating
specialist or your nearest Wilo cus-
tomer services or representative.
10. Spare Parts
All spare parts should be ordered directly from
Wilo Customer Service.
To avoid mistakes, always quote the details on
the pump’s rating plate when
making an order.
The spare parts catalogue is available at:
www.wilo.com
Problems
Causes
Remedies
The pump fails to start
No current
Check the line.
Replace the fuses if necessary.
Close the overload release or the switch
of the control box.
Winding or cable open-circuit
Check the resistances at the end of the
cable.
If the cable is damaged, return the pump
to the after-sales service or replace by an
authorized person by the manufacturer.
Rotor blocked (the motor “growls“)
Dismantle the impeller and clean it.
The pump fails to deliver
or delivers too little
Discharge pipe obstructed
Remove the pipe and clean it.
Impeller obstructed by particles
Dismantle the impeller and clean it.
The check-valve is mounted upside
down
Check the direction of fitting.
The pump trips out
Faulty electrical installation
Check the whole electrical installation.
Pump blocked
Dismantle the impeller and clean it.
The pump is hard to turn
Dismantle the impeller and clean it.
Water in oil
The mechanical seals is in poor condition Let the Wilo after-sales service replace
the mechanical seal.
11. 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.
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:
• Only hand over these products at designated,
certified collecting points.
• Observe the locally applicable regulations!
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 modifications!
Installation and operating instructions - Wilo-Drain TC40