Fault Finding - Deltec TC 2561 Instructions D'emploi

malfunction
Pump produces
insufficient air
excessive air bubbles in
aquarium water
Pump does not start
The Deltec skimmer range should need very little adjustment and maintenance once set
correctly however due to the high levels of calcium in marine aquariums it is common for
deposits to build up on moving parts requiring periodical cleaning . Deltec pumps are fitted
with little flaps inside the outlet of the pump and inside the housing, which flip from one
side to the other depending on the direction of rotation thus ensuring that the pump always
operates at full duty. It is recommended every 6 months, or when required, that the pumps
are removed from the skimmer having first drained the body of Water.
Check and clean the impellor of debris. Ensure that the direction flaps move easily and if
necessary soak the neck of the pump housing in white vinegar or lime scale remover to
dissolve any calcium carbonate deposits. A build up of calcium, dust and salt can restrict or
block the venturi inlet on the connecting pipe work and reduce the skimming efficiency. This
should be checked and carefully cleaned with a toothpick or fine drill rotated between the
fingertips. It is advisable to stop the pump for approximately 15 minutes once every week in
order to dissolve any dust or salt crystals that may have collected in the venture tube.
Please observe: The water level adjuster must be checked at regular intervals (at least
once a week) for accumulation of dirt or other substances with may inhibit or interfere with
its proper function. If required please clean. For this purpose the water level adjuster can be
simply removed by pulling it upwards. After reinstallation of the water level adjuster please
make sure it is correctly set. Any foreign bodies, limestone build up ect. can cause the
skimmer water level to rais, in extreme cases the skimmer may get flooded.

Fault finding

cause
silencer, airline or venturi blocked clean
airline kinked
ozonizer blocked
Pump flaps blocked
caused by additives in certain sea
salts and water conditioners
Front bearing of the impeller stuck.
When the pump (after having been
used) has been stored dry for a period
of time, the front bearing can "dry out".
Impeller incorrectly fitted
Maintenance
remedy
remove kink
clean
clean
use different salt or feed heavily
for a period, empty skimmer cup
frequently. This condition may
last for several weeks.
Remove impeller with the extractor tool
as illustrated and loosen the bearing by
moving the bearing plate around and
along the ceramic shaft in tap water.
See service hints
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