12
(Translation of the original instructions)
© 2017 English
EN
EN
11 TROUBLESHOOTING
Problems Possible causes Remedies
The motor is running but the
appliance does not suck in water
1) The pump body (A4) was not filled with water before start-up. 1) Fill the pump body (A4, see point 6.3).
2) Suction hose not airtight.
2) Check that the recommended accessories were used. Check that
the suction hose is airtight, use Teflon tape on the threads.
3) Foot valve suction strainer obstructed. 3) Clean foot valve and suction strainer.
4) Delivery side air unable to escape because suction point
is closed.
4) During priming, open the suction points (water supply tap, water
hoses).
5) Not enough time allowed.
5) Completely fill the suction hose with water and wait up to 7
minutes after the appliance is started.
6) Excessive suction lift. 6) Reduce the suction lift (max. 8 m).
7) Suction hose not immersed in water.
7) Check the water level in the well or cistern and lengthen the
suction hose if possible .
Motor does not start 1) No mains power. 1) Check the voltage, connect the plug (A12).
Water flow rate insufficient
1) Suction lift and/or head excessive.
1) Excessive suction lift and head and external components all
reduce the flow rate! This is not a malfunction.
2) Foot valve suction strainer obstructed. 2) Clean the suction strainer.
3) Water level in suction point drops too fast. 3) Immerse the foot valve in a greater depth of water.
4) The appliance's flow rate is being reduced by soil in the water.
4) Clean the pump body (A4) by directing a jet of water in through
the suction fitting (A1) and delivery fitting (A2), and if necessary
have the appliance checked by the Service Centre. Use a pre-filter
if the appliance does not have an integral pre-filter (A1 b).
The thermostat is cutting out the
appliance
1) Motor overloaded due to friction between dirt particles and
impeller.
Dry operation or flow of water insufficient.
1) Clean the inside of the pump body (A4) by directing a jet of water
in through the delivery fitting (A2), leave the thermostat to cool for
about 1 h, and if necessary have the appliance checked by the
Service Centre.
2) Dry operation.
2) Check that there is water present, leave the thermostat to cool
for about 1 h, and if necessary have the appliance checked by the
Service Centre.
The appliance continually switches
on and off
1) No check valve on suction hose, water flowing back from
suction hose.
1) Check whether a foot or intermediate valve is installed on the
suction side.
2) Rubber diaphragm in tank (A10) faulty.
2) Replace the rubber diaphragm or the tank. Contact the Service
Centre.
3) No air pressure in tank.
3) Fill the tank (A10) with air by means of the relative valve (A9) to
a pressure of 1.5 bar (see Maintenance).
4) Delivery side not airtight.
4) Seal the delivery side to render it airtight, check that the system
is airtight.
The appliance operates continually
1) The switch-off pressure set for the pressure switch is too high.
1) Notify the Service Centre and have the switch-off pressure
adjusted.
2) Delivery side not airtight.
2) Seal the delivery side to render it airtight, use Teflon tape on
the threads.
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