ARVEN KONTRACT Serie Bedienungsanweisung Seite 27

FAULT
4
5.The overload protec
tion device stops the
pump.
ste at a collection point for the recycling of electrical and electronic equipment.
CHECK (Possible cause)
A. Ensure that the impellers or the
delivery pipe are not partly
B. Ensure that the impellers are not
D. Check the direction of rotation
in three-phase versions (See
Chapter on Electrical connection
- Paragraph 8.4.).
A
pumped is not too dense
overheating of the motor
B
is not too high (see liquid tem
perature range).
C.The pump is partly blocked by
impurities.
D.The pump is mechanically
blocked.
REMEDY
A. Check good operation of the
valve and replace it if necessary.
B.Change the impellers
D
B Reduce liquid temperature.
Wait until thermal protection
C. Accurately clean the pump.
D.Check for the occurrence of
the supplier).
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27