V Trouble shooting
Trouble
Reason
Remedy
Electr. pump or motor
pump does not prime water
Pump not deaerated
Deaerate pump by filling up
with water
Precoat pump does not prime water in
spite of deaeration
Main ball valve of the 4-way suction
device is closed
Open corresponding ball
valves
Precoat ball valve of the 4-way
suction device is closed
Ball valve of the raw water collector
is closed
Suction device is still hanging on
the suspender ring
Hang suction device into the
raw water tank
Electr. pump is operating,
is deaerated, but does not
supply water
Direction of rotation of the electr.
pump is wrong
Change poles of direction of
rotation
Electr. pumps do not operate though
protective switch is switched on and
motor cable is plugged
Fault current protective switch in
the electric distribution box has
released
Switch on FI switch in the
distribution box again after
having checked it for
defective cables
One of the electr. pumps
does not operate though
the motor cable is plugged
Motor protective switch has
released
Check pump for smooth
running (foreign matter,
damage at the bearing).
Restart motor protective
switch.
Precoat material does not adhere to
the filter candles
Circulation ball valve of the 4-way
suction device is closed
Open ball valve
Float of the flow rate meter „flutters“
during precoating
Precoat filter not deaerated
Open deaeration valve at the
precoat filter
Precoat pump failed
Restart precoat pump
Chlorine dosator does not yield
chlorine
Chlorine dosator is not deaerated
Deaerate chlorine dosator
Needle valve of the flow rate meter
is clogged
Clean needle valve
Bag without filling
Refill chlorine lye