EN
TROUBLESHOOTING
Malfunction Possible cause Remedy
The motor head cannot
be fastened to the filter
case.
The arrows on the filter media container
and on the filter case are not all pointing in
the same direction. The filter media contai-
ners are incorrectly fitted.
Fit the filter media containers correctly.
Too much filter media has been put into the
filter media containers.
Remove excess filter media.
Water leakage from
the motor head.
The locking clips are not properly closed. Close the locking clips properly.
Dirt or foreign bodies are located on the fil-
ter case or motor head seal.
Clean all points where the motor head seal and
filter case make contact.
The motor head seal is incorrectly fitted,
damaged or missing.
Correctly insert the motor head seal or replace.
The edge of the motor head is damaged. Replace the motor head.
The hose adapter is incorrectly fitted. Fit the hose adapter correctly.
The motor is not work-
ing.
The power supply is interrupted. Establish the power supply.
The impeller shaft is broken. Replace the impeller.
The impeller is missing or is blocked by for-
eign bodies.
Fit the impeller or clean.
Reduced water flow. The hose adapter is heavily soiled. Remove the hose adapter and clean with warm
water.
The hoses are restricting the water flow. Eliminate any kinks or twists in the hoses.
Excessive dirt build-up in the hoses. Rinse out the hoses, intake pipe and outlet pipe
with tap water at high pressure.
Strainer clogged. Remove all foreign bodies and dirt.
Filter media clogged. Clean the filter media with water from the
aquarium.
The filter media is contained in nets. Do not use filter media in nets or nylons as the
filter will become clogged.
The filter media containers have not been
correctly filled with filter media.
Fill the filter media containers correctly.
Excessive dirt build-up on the Tetra FF Fil-
ter Floss Pad.
Replace the Tetra FF Filter Floss Pad.
Dirt in the impeller case. Clean the impeller with warm water.
The water is not circulating. Position the outlet pipe above the level of the
water and press the start button.
Filter media/spare parts other than those
supplied by the manufacturer have been
used.
Only use original parts from Tetra.
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