DAB NOVA UP 180MA-MNA Anleitung für Installation und Wartung - Seite 14
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12. TROUBLESHOOTING
FAULTS
(possible causes)
A. Check that voltage
is reaching the
The motor
motor.
does not start
B. Check the protec-
1
and does not
tion fuses.
make any
C. The switch is not
noise.
activated by the
A. The suction grid
or the pipes are
blocked
The pump
B. The impeller is
2
does not
worn or blocked.
deliver
C. The head required
is higher than the
pump's characte-
ristics
A. The switch is not
3 The pump
deactivated by the
does not stop.
24
CHECKS
REMEDIES
B. If burnt out,
change them.
C. - Check that the
freely.
- Increase the
depth of the
trap
A. Remove the
obstructions.
B. Replace the im-
peller or remove
the obstruction.
A. Check that the
freely.
CHECKS
FAULTS
(possible causes)
A- Check that the
suction grid is not
partially blocked
Check that the impel-
ler or the delivery
pipe are not partly
4
blocked or encru-
sted.
C. Ensure that the
check valve (if
contemplated)
is not partially
blocked
The pump
A. The thermal over-
stops after
load protection
5
having run for
device stops the
a short time
pump.
REMEDIES
A. Remove any
obstructions.
B. Remove any
obstructions.
c. Accurately clean
the check valve
A. Check that
pumped is not
too dense as
it would cause
overheating of
the motor.
Check that the
water tempera-
ture is not too
high.