In any case, all repair and maintenance jobs must be carried out only after having disconnected
performances.
12 MODIFICATIONS AND SPARE PARTS
Any modification not authorized beforehand relieves the manufacturer of all responsibility.
All the spare parts used in repairs must be original ARVEN. For codes and denominations see
enclosed sheet.
All accessories must be approved by the manufacturer so as to be able to ensure maximum
13 TROUBLESHOOTING
FAULT
1.The motor does not
start and makes no
noise.
2.The pump does not
deliver.
3.The pump does not
stop.
24
CHECK (possible cause)
A.Make sure motor is live and
check that the mains voltage cor-
responds to the one on the data
plate.
B.Check the protection fuses.
C
starup.
D.The shaft is not turning.
A.The pipes are obstructed.
B
cked.
C
D.The head required is higher
than thepump's characteristics
A
the operating of the pump.
.
REMEDY
B. If they are burnt-out, change
them.
C
D. Turn the shaft as indicated in
the Warnings chapter
(Paragraph 6.3. ).
A.Remove the obstructions, as
indicated in the Warnings
chapter (Paragraph 6.4).
B.Change the impellers or remove
-
the obstruction.
C.Regulate the length of the
ter on Warnings - Paragraph
9.2.)
A.
-