Insufficient of the water flow
Air build-up
Automatic water drain does not
work
Filter makes abnormal noise
on start-up
Filter makes abnormal noise
when running
Pipes are extremely dirty.
Water inlet is blocked.
Filter media are blocking water.
Filter media not properly
combined.
Filter sponge is very dirty.
Impurities have collected in the
motor.
The water does not circulate.
The distance between the filter
and the surface of the aquarium
water is insufficient.
Filter media are not clean.
Air entering pipe connections.
Air trapped in the tank.
Insufficient application of
lubricants.
Irregular water flow.
Air trapped in the filter.
Damaged propeller or rotor.
Water flow decreases due to dirty
propellers or rotors.
10
Clean the inside of hoses and
tubes.
Remove impurities and dirt.
Remove and clean with aquarium
water.
Refer to the product sheet for the
filter in question and read the
instructions carefully.
Replace it.
Clean the rotor thoroughly with a
small brush.
Ensure that the strainer is
sufficiently immersed and that
there is no air in the filter.
The top of the filter should be at
least 10 cm below the water
surface. The greater the distance,
the better.
Replace gaskets or make sure the
pipe is properly connected.
Remove filter media and clean
with aquarium water.
Check that they are correctly
connected.
Leave the filter switched on and
shake it gently to expel any air
accumulated inside.
Apply lubricant to the seals.
Press the start button and repeat
the procedure from the beginning.
Plug in and unplug 3 or 4 times.
Shake gently to expel air.
Replace them.
Clean propeller and/or rotor with a
small brush.