DAB NOVA UP MAE Series, Instruction For Installation And Maintenance, Page: 29 / 176

ENGLISH
GB
29
12. TROUBLESHOOTING
FA FA UL UL TS TS
CH CH EC EC KS KS
(p (p os os si si bl bl e e ca ca us us es es ) )
RE RE ME ME DI DI ES ES
1
The motor does
not start and
does not make
any noise.
A. Check that voltage is
reaching the motor.
B. Check the protection
fuses.
C. The switch is not
activated by the
sensor.
B. If burnt out, chang
them.
C. -Check that the
probes are not
clogged by dirt.
- Increase the depth
of the trap
2
The pump does
not deliver
A. The suction grid
or the pipes are
blocked
B. The impeller is worn
or blocked.
C. The head required
is higher than the
pump’s characte-
ristics
A. Remove the
obstructions.
B. Replace the im-
peller or remove
the obstruction.
3
The pump does
not stop.
A. The switch is not
deactivated by the
sensors.
A. Check that the
probes are not
clogged by dirt.
FA FA UL UL TS TS
CH CH EC EC KS KS
(p (p os os si si bl bl e e ca ca us us es es ) )
RE RE ME ME DI DI ES ES
4
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A- Check that the
suction grid is not
partially blocked
Check that the impeller
or the delivery pipe
are not partly blo-
cked or encrusted.
C. Ensure that the check
valve (if contempla-
ted) is not partially
blocked
A. Remove any ob-
structions.
B. Remove any ob-
structions.
c. Accurately clean
the check valve
5
The pump stops
after having run
for a short time A. The thermal overload
protection device
stops the pump.
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to be pumped is
not too dense as
it would cause
overheating of the
motor.
Check that the
water temperature
is not too high.
Check that the
probes are not
clogged by dirt.