Troubleshooting - DAB JET 151 Installationsanweisung Und Wartung

cover, unscrewing the four screws on it. Unscrew the three terminals L - N -
green lead, coming from the supply pressure switch, after having slackened the grommet.
When replacing the power cable, a cable of the same type must be used (e.g. H05 RN-F or H07 RN-F depending on the installation) and
with the same terminals, proceeding as for disassembly in inverse order.
ATTENTION: depending on the installation and if the pumps have no cable, fit supply cables type H05 RN-F for indoor use and type H07
RN-F for outdoor use, complete with plug (EN 60335-2-41). For power cables without a plug, provide a device for cutting off the mains
(e.g. magnetothermal device) with separating contacts of at least 3 mm for each pole.

10. TROUBLESHOOTING

FAUL
1. The motor does not start and
makes no noise.
2. The motor does not start but makes
noise.
3. The motor turns with difficulty.
4. The pump does not deliver.
5. The pump does not prime.
6. The pump supplies insufficient
flow.
7. The pump vibrates and operates
noisily.
ENGLISH
CHECKS (possible cause)
A. Check the electric connections.
B. Check that the motor is live.
C. Check the protection fuses.
A. Ensure that the mains voltage is the same as
the value on the plate.
B. Ensure that the connections have been made
correctly.
C. Check that all the phases are present on the
terminal board. (3~)
D. Look for possible blockages in the pump or
motor.
E. Check the condition of the capacitor.
A. Check the voltage which may be insufficient.
B. Check whether any moving parts are scraping
against fixed parts.
A. The pump has not been primed correctly.
B. On three-phase motors, check that the
direction of rotation is correct.
C. The diameter of the intake pipe is insufficient.
D. Blocked foot valve.
A. The intake pipe or the foot valve is taking in air.
B. The downward slope of the intake pipe favours
the formation of air pockets.
A. Blocked foot valve.
B. The impeller is worn or blocked.
C. The diameter of the intake pipe is insufficient.
D. On three-phase motors, check that the
direction of rotation is correct.
A. Check that the pump and the pipes are firmly
anchored.
B. There is cavitation in the pump, that is the
demand for water is higher than it is able to
pump.
C. The pump is running above its plate
characteristics.
and disconnect the brown lead, the blue lead and the yellow-
C. If they are burnt-out, change them.
N.B. If the fault is repeated immediately this means
that the motor is short circuiting.
B. Correct any errors.
C. If not, restore the missing phase.
D. Remove the blockage.
E. Replace the capacitor.
B. Eliminate the cause of the scraping.
B. If necessary, invert the connection of two
supply wires
C. Replace the pipe with one with a larger
diameter.
D. Clean the foot valve.
A. Eliminate the phenomenon and prime again.
B. Correct the inclination of the intake pipe.
A. Clean the foot valve.
B. Remove the obstructions or replace the worn
parts.
C. Replace the pipe with one with a larger
diameter.
D. If necessary, invert the connection of two
supply wires.
A. Fix the loose parts more carefully.
B. Reduce the intake height or check for load
losses.
C. It may be useful to limit the flow at delivery.
9
REMEDY