CAUTION
Biological hazard
Minor or moderate personal injury
‐ The product will be classified as
contaminated if it has been used for a
liquid which is injurious to health or
toxic.
‐ Wear personal protective equipment.
The level controller is maintenance-free. However,
the electrode tips must be cleaned at regular intervals
to remove any deposits that could otherwise lead to
malfunctions. The maintenance intervals to be
observed depend on the operating conditions and the
liquid pumped.
10.2 Service, spare parts, accessories
Spare parts and accessories not supplied
by Grundfos will not be inspected or
approved by Grundfos.
The use of non-authorised spare parts and
accessories voids any Grundfos warranty liability for
consequential damage.
Any malfunctions which cannot be repaired must only
be corrected by Grundfos or authorised specialist
companies.
Please provide an exact description in the event of a
malfunction to allow our service technician to prepare
and provide the appropriate spare parts.
11. Storage
The controller must be stored in a dry, cool, frost-free
space. The controller must not be exposed to direct
sunlight.
12. Fault finding
DANGER
Electric shock
Death or serious personal injury
‐ Switch off the power supply before you
start any work on the product.
‐ Make sure that the power supply
cannot be switched on accidentally.
‐ We recommend that you unplug the
control box from the socket.
DANGER
Electric shock
Death or serious personal injury
‐ If national legislation requires a
Residual Current Device (RCD) or
equivalent in the electrical installation,
this must be type B or better, due to
the nature of the constant DC leakage
current. The RCD must be marked with
the following symbols:
‐
TM072868TM072869
CAUTION
Scalding or etching
Minor or moderate personal injury
‐ Wear personal protective equipment.
Fault Cause Remedy
1. The
pump
does not
start
a) No power
supply, or incorrect
power supply.
Check the power
supply.
b) Incorrect
electrical
connection.
Check the
electrical
connection and
correct as needed.
c) Defective cable.
Check the cable.
Contact Grundfos
Service in the
event of a
defective cable.
d) The motor
protection of the
pump has tripped
due to overheating,
blockage, voltage
fault or other pump
fault.
For actions to take
when motor
protection on the
pump has been
tripped, see the
installation and
operating
instructions for the
pump.
e) Fuse in control
box has blown.
Replace fuse (fine-
wire slow-blow
fuse 8 A). If the
fuse blows again
immediately,
identify and
remedy the cause.
f) Controller fault or
defective
electronics.
Contact Grundfos
Service.
g) The electrodes
are contaminated.
Clean the
electrodes.
10
English (GB)
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