25
english
Cause
Solution
No mains supply. Plug in to mains.
Shaft broken. Renew shaft (see list of spares).
Impeller missing or blocked
by bits of gravel, shells or
similar.
Fit impeller, clean pump chamber.
...Pump does not work
Cause
Solution
Filter location.
The top edge of the pump head should be at least 10 cm beneath
the surface of the water. It is better to place it underneath the
aquarium.
Air is being sucked in via the
hose installation.
Check that hose connector is tted properly, and maybe check
whether hoses leak.
Additional air supply
(membrane pump).
Do not install diffuser in the vicinity of the suction pipe.
Filter media heavily soiled. Clean lter media.
Filter media have been
placed in net bags.
Never put long-term lter media in net bags or nylon stockings. This
leads to a drastic reduction in pump performance within a short time.
...Air in the lter
Cause
Solution
Ceramic sleeve not or
incorrectly installed.
Correctly install or, if required, replace the ceramic sleeve.
Ceramic axis broken. Replace the ceramic axis.
... the pump causes loud operating noise
Pump is dirty. Clean pump chamber, cooling and lubrication channel with cleaning
brush set (Order No. 4009560) (see chapter on Servicing and
Maintenance).
Water is not circulating
properly.
Take lter into operation by priming (as described in the instructions).
Make sure that the water runback (delivery side) is above the surface
of the water during lling so that air is optimally bled from the device.
Too many accessories
installed on the hose
system.
Connected accessories reduce lter performance. Check and
remove unnecessary accessories or operate via a separate water
circulation system.
Filter pad not renewed. Be sure to renew the lter pad each time you clean
(Order No. 2616802).
To Next Page
Loading...
