K..065F.. / K.T040F..
Faults
3.
The pump fails to give
right head
GB
4.
The pump fails to
deliver the correct flow
rate
5.
The motor stops and
then restarts after a
short time, but the
thermic protector of the
starting equipment fails
to activate.
6.
The electric pump fails
to stop
7.
The electric pump fails
to function in automatic
mode
8.
The thermic protection
of the circuit has
activated or all fuses
have burnt out.
9.
The pumps fail to
alternate when preset
by the panel.
10.
The shredder clogs
frequently.
28
Probable
3.1. The intake or delivery sluice valve is partially
closed or clogged.
3.2. The check valve is partially clogged.
3.3. The intake/delivery pipe is clogged.
3.4. The pump turns in the wrong direction.
3.5. The pump head has diminished.
3.6. There are leaks from the system in the pumping
station.
3.7. The shredder has clogged.
3.8. The hydraulics are worn.
4.1. The pump has become unprimed by an air
pocket.
4.2. Clogged pump or pipes.
4.3. The minimum level gauge may have jammed in
the closed position.
4.4. Control selectors in the wrong position.
4.5. Possible wear on the wet side.
4.6. Sluice valve closed, or check valve blocked.
5.1. The electric pump is operating with an
excessively high number of starts.
5.2. Incrustations on the surfaces do not allow the
heat produced by the electric motor to escape.
Also consult points 2.1. - 2.3. - 2.4. - 2.5. - 2.6.
6.1. The pump fails to empty the trap down to stop
level.
6.2. The electric pump continues to operate even
beyond the stop level.
6.3. Electric pump with insufficient flow rate for plant
requirements.
7.1. Refill or wait until the accumulation chamber fills
so that pump operation can be checked when
enabled by the probe.
7.2. Check the connections of each probe and
change any defective ones.
8.1. The motor is incorrectly connected.
8.2. Short-circuit in the connecting cables, the
winding or in the motor connections.
8.3. Protector plates or fuses undersized in
relation to the installed power.
8.4. Excessive heat in the place where the panel is
installed.
9.1. Defective switch relay.
9.2. Incorrect level sensor sequence.
10.1. The shredder cutters are no longer sharp.
10.2. The pump turns in the opposite direction.
SALES NETWORK and LIST OF ASSISTANCE CENTERS available in www.caprari.com
Remedies
3.1. Open or release the sluice valves.
3.2. Release the valve. If there is an external lever,
move this backwards and forwards several
times.
3.3. Pump clear water to flush, or pump water at
high pressure through the pipes using a hose.
3.4. Electric pumps may sometimes spin in the
opposite direction without much noise or
vibrations (particularly mod. KCV and KCT).
Make sure that the motor turns in the right
direction.
3.5. Check the total head with a pressure gauge
when the pump is operating. Compare the
value with that given in the instruction manual
or, even better, with a previous reading. If the
pump has been in service for some time and
the head has dropped, remove the pump and
check for wear or if the impeller is clogged.
3.6. Check and repair any damage.
3.7. Lift the pump and remove the solid matter from
the intake.
3.8. Adjust the wear by regulating the pump casing
shield (KT only) or replace the worn parts.
4.1. Switch off the electric pump for a few
minutes and then start it again.
4.2. Inspect the pump, pipes and tank in that
order.
4.3. Check that the minimum level sensor is
unobstructed.
4.4. Set the selectors in the right positions.
4.5. Overhaul the pump. Also consult 3.8.
4.6. Open the sluice valve or release the check
valve.
5.1. The accumulation chamber is too small, or
the defective check valve keeps filling the
tank.
5.2. Clean.
6.1. Check for leaks in the driving system inside the
trap or for clogging in the valves or impeller.
6.2. Check the level monitoring equipment.
6.3. Replace the electric pump with another able
to ensure a higher flow rate.
7.1. The level of the fluid in the accumulation
chamber is insufficiently high to allow the
electric pump to start.
7.2. Incorrect connection or malfunction of the
level sensors.
8.1. Check and correct the panel connections.
8.2. Disconnect the motor and check the windings.
Check whether there is a short-circuit or
grounded phase.
8.3. Check and replace with correctly sized
parts.
8.4. Check the installation site or use compensated
equipment.
9.1. Check and replace the device if necessary.
9.2. Check and correct the activation sequence and
check the start and stop commands.
10.1. Replace the two shredder components.
10.2. Make sure that the rotation direction is
correct.
Caprari S.p.A.