Detailed error descriptions and solutions
Residual water in the shower
In order for the lifting system to switch on when the sewage water is evacuated, the incoming sewage
water line should have a gradient of at least 2–3% and a height difference of at least 20 cm from the
siphon to the entrance to the macerator.
Both are necessary so that the pressure switch in the macerator is actuated, the lifting system
switches on and the water is pumped out.
Possible errors if this is not taken into account:
The lifting unit does not pump out the water;
there is always residual water in the pipes;
there may be residual water in the shower tray.
Loud noises , engine not running or running hardly, water is not evacuated
These are the symptoms of a macerator blockage.
If the system is clogged with toilet paper and faecal matter, it is sufficient in most cases to carefully
rinse the system backwards with water. To do so, execute little water pressure on the macerator out-
let, e. g. with a garden hose, so that the residues are flushed out of the pump body back to the macer-
ator. Please make sure that no water pressure comes on the macerator collecting tank. Otherwise, the
macerator pressure switch is damaged and the automatic activation / deactivation does not work prop-
erly any more
With more severe obstructions / blockages by solid bodies that have jammed inside the pump body, it
may be necessary to open the pump so that the solid bodies can be removed.
In the event of strong impacts from the solid objects in the macerator, the motor bearings can even be
damaged. In this case, the macerator motor must be opened and the bearing replaced. This error usu-
ally occurs after large solid bodies have been removed or rinsed out. The macerator can then still be
turned freely by hand, but as soon as you try to start the motor, it blocks and only hums.
Rinsing the macerator does not require any technical knowledge.
Pump system does not pump out and operates continually
This error occurs with macerators that have been switched off (no electricity) and still had an inlet or
into which waste water has been evacuated under pressure from a dishwasher or washing machine or
which had more inlet than the pump could pump out. This “overcrowded” the device.
It can happen that water enters into the macerator pressure switch. As a result, the pressure switch is
no longer working properly. The system then either runs continuously or no longer switches itself on
automatically.
© by WilTec Wildanger Technik GmbH
Item 50741
Page 10
http://www.WilTec.de
http://www.aoyue.eu
11 2020
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