Filter Operation And Troubleshooting; Noise Reduction/External Air; Evacuating Air From Filter System; Leakage After Installation Or Cleaning - WilTec SUNSUN HW-302 Operation Manual

Filter operation and troubleshooting

Noise reduction/external air

Especially the suction intake and the connected suction surface has to be checked for tightness and to
be adjusted according to the aquarium water level. If this is not possible due to aquarium technical
reasons, seal the whole suction surface so that no external air can get into the filter.

Evacuating air from filter system

Take the return-flow hose that conducts the water from the filter to the tank and put it into a clean
bucket that is placed below the filter. Leave the hose inside the bucket and carry out the dearation pro -
cess (evacuate the air) by activating the manual pump. Please make sure that the potential flow is ad -
justed to the inlet-outlet connector. As soon as no air bubbles can be seen, seal the hose with a finger
and install it again on the return pipe at the top edge of the aquarium as intended.

Leakage after installation or cleaning

If a slight leakage still persists after the filter installation or the filter cleaning, the problem is most likely
the sealing between the hose connector adaptor and the filter head (cover lid).
The plug-in adaptor that the hoses are connected to has two O-rings on the lower side that seal the
connection inside the filter lid. If these O-rings are dirty, displaced (out of place) or damaged, they can -
not seal properly anymore and water escapes into the filter lid/aquarium filter cover.
The leak point is then the lowest point of the filter cover/lid and appears typically at the lateral clamp -
ing points that connect the cover lid with the filter basis.
The remedy is here as simple as the failure itself. You have to rinse and check the O-rings. Make sure
that the spots where the O-rings have to be inserted and positioned are free of dirt. On these particular
spots, algae formation can appear and impair or damage the O-rings sealing if no regularly cleaning is
carried out. This problem can also appear in case of a new installing because of sand, for instance.
Please allocate sufficient time for rinsing and cleaning; if this is not done carefully and thoroughly,
aquarium canister filter may still leak after the O-ring sealings have been cleaned. If, despite a thor-
ough cleaning, the water leakage at the spots above-mentioned still persists, you must check the O-
ring seating inside the adaptor. This requires opening the inlet/outlet adapter. Please contact our cus-
tomer service agents who are looking forward to helping you.
© by WilTec Wildanger Technik GmbH Item 50192–50197, 50358, 50359 Page 9
http://www.WilTec.de
http://www.aoyue.eu 11 2020-1
http://www.teichtip.de