ENGLISH
QUICK TIPS FOR
REMEDYING FAULTS
The lifting station isn't working
• Check the mains voltage, the fuse
and the FI circuit breaker. Replace
defective fuses only with fuses with
the same nominal value. If the fuse
triggers again, call a qualified elec-
trician or our service engineers.
• The internal 2 A glass tube time delay
fuse for the 230/12V control trans-
former, the motor contactor and the
230V AC power supply are faulty. Re-
place defective fuses only with fuses
of the same type and nominal value!
• If the mains cable is damaged, it must
be replaced by the manufacturer only.
• If the float switch is obstructed, close
the inlet sluice valve, open the main-
tenance cover and clear the block-
age.
Lifting station does not work and
alarm is triggered
• The thermostat in the motor wind-
ings has switched off the system
because the pump is obstructed. In
this case, close the inlet sluice valve,
drain the tank, unplug the mains
power supply cable or switch off at
the main switch, remove the pump
module, and clear the blockage
Decreased pumping performance
• Check that the sluice valve in the
pressure pipe is fully open.
• If the pressure pipe is obstructed,
flush water through the pressure
pipe to clear it.
• If the swing-type check valve is ob-
structed, close the sluice valve and
clean the swing-type check valve.
• If the ventilation system is blocked,
clean the ventilation hose between
the pump and the tank and check the
drilled holes.
"Wrong rotating field" indicator is lit
• Mains phase sequence is wrong or
phase is absent - thus lower or ab-
sent pump delivery. The mains con-
nection must be corrected by a qual-
ified electrician only.
14
"H3, H4 Pump failure" indicator is lit.
• The pump is protected by an integrated
overload safety switch which turns the
pump off if it overloads or if there is an
electrical motor fault. After this has
been triggered, it must be reset by
hand in order to use the pump again.
The control unit must be opened by a
qualified electrician in order to press
the safety switch reset button.
"H5 High water" indicator is lit
• Water level in the tank too high be-
cause of low pump flow rate or ex-
cessive inflow. Remove any obstruc-
tions in the pump or pressure pipe
and/or eliminate the excessive in-
flow.
LED P1 on the analogue evaluator is
continuously lit
• There is a fault in the level detection.
Call our Customer service.
• There is no residual water in the
tank. Fill the tank with a small
amount of water.
• Note: If the LED lights up after the
pumping operation, this is not a sign
of a malfunction. The LED goes off
once the tank is filled again with a
small amount of wastewater.
Pump "snores" and does not switch
itself off
• The switch-off point of the lifting sta-
tion is too low.
Unscrew the three fastening screws
of the level detection at the front of
the collecting tank. By carefully rotat-
ing it in an anti-clockwise direction the
switch-off point can be set to a higher
level. Retighten the screws. When
the switch-off level is reached during
pumping, this is shown by the middle
LED P2 on the analogue evaluator going
off (on the right-hand side of the control
unit).
ATTENTION! It may also be necessary
to re-adjust the switch-on level (please
refer to the section "Redefining the
switch-on level").