Check if the electric plug of the pump is properly inserted into
the electric socket.
Check fuses at home and all other types of installation fuses that
can cut off the power supply from the network
Check if there is a power supply in your neighbourhood - power
can be cut off by the power plant in the larger area
Incorrect voltage or its drop
on launch
Check the voltage Check if the cable cross-section is sufficient.
Pump operates but does
not feed water or feeds
too little
Blocked strained at suction
Disconnect the pump from power supply. Upon pump removal
from the well clean the filter
Incorrect direction of motor
rotation
Change two core cables of power supply cable in the supply strip
(only in case of three-phase motors).
Incorrect connection of core cables in the cable box (only if they
were disconnected by the user). Connect them in a correct
manner. Assign the correct connection to the service.
Too high resistance at flow
through the pumping
pipeline (hose).
Check if the maximal value of lifting for the said pump type was
not exceeded. The difference between the level of the water
mirror in the well from which the water is pumped, the level onto
which the water is pumped, the length of the pumping pipeline
(hose) and its diameter are factors which influence the height of
lifting that must be performed by the pump. If the resistance is
too high for the said pump type, replace the pump with another
one with greater lifting height.
Sand in the pump (water
with sand contamination)
Remove sand from the pump Clean the well. The pump is
installed to close to the well bottom. Pump sucks in sand.
Not enough water in the well
Check the pump position. The discahrge port should be placed at
least 2 m above the lowest dynamic water mirror level.
Water contamination with
sand
Worn and torn subassemblies pump water. The pump is installed
to close to the well bottom. Pump sucks in sand. Assign paid
replacement of worn and torn elements to the guarantee service.
Frequent switching on
and switching off the
pump Frequent
switching on and
switching off the pump
Hydrophoric tank is too
small
Replace the tank with a bigger one
There is no air cushion in the
tank
Check air pressure in the tank Pump in more. If the situation
often repeats, check if the tank membrane is not broken
The difference between the
switch-on and switch-off
pressure on the pressure
switch is too small
Remove the pump, replace the valve.
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