© by WilTec Wildanger Technik GmbH
Item 62138, 62139
Page 12
06 2021
-1
Detailed error descriptions and solutions
Residual water in the shower tray
In order for the lifting unit to switch on cleanly when discharging waste water, the incoming waste water
pipe should have a gradient of at least 2
–3 % and a height difference of at least 20 cm from the siphon
to the inlet to the lifting unit.
This is both necessary for the pressure switch in the toilet lift to work properly, turn on the lift and pump
out the water. Possible faults, if this is not taken into account, are that the lifting unit does not pump the
water out or that there is always too much left in the pipes or possibly in the shower tray.
Loud noises, motor does not start or starts heavily, water is not pumped out.
These symptoms occur when the lifting system is blocked.
If the system is clogged with toilet paper and faeces, in most cases it is sufficient to carefully flush the
system backwards with water. To do this, simply apply a little water pressure to the outlet of the lifting
unit, e.g., with a garden hose, so that the residues from the pump body are flushed back into the lifting
unit. Please make sure that there is no water pressure on the collecting tank of the lifting unit. Otherwise,
the pressure switch of the lifting unit will be damaged and the automatic on/off switch will no longer
function correctly.
In the case of heavy blockages/blockages caused by solids which have jammed in the pump body, it
may be necessary to open the pump so that the solids can be removed.
Strong impacts from the solids in the lifting unit may even damage the motor bearings. In this case, the
motor of the lifting unit must be opened and the bearing replaced. This fault usually manifests itself after
the removal or rinsing out of larger solids. The lifting unit can then still be turned freely by hand, but as
soon as you try to start the engine, it blocks and only hums.
Cleaning can easily be done through the maintenance opening on the top of the lifting unit.
Lifting unit does not pump down and is in continuous operation
This error occurs in lifting systems that were switched off (no power) and still had inlet, or where sewage
was discharged under pressure from a dishwasher or washing machine, or that had more inlet than the
pump could pum
p out. As a result, the systems were “overfilled.”
It can then happen that water gets into the pressure switch of the lifting unit. This disturbs the function
of the pressure switch. The system then either runs continuously or no longer switches on automatically.
Cleaning the unit
The lifting unit may only be cleaned from the outside with mild detergents, a damp cloth and soapy
water. Damage caused by incorrect cleaning agents is not covered by the warranty.