Troubleshooting
87/ 122
Powerlift prefabricated pumping station
Malfunction
Cause(s)
Actions
Pump does not
deliver and/or
pumps too little
or tank full
Ball valve and/or gate valve in the pressure
pipe is not fully open or is closed
Fully open the ball valve or stop valve in the
pressure pipe
Pressure pipe obstructed
Clean the pressure pipe
Impeller or grinder (pump) blocked
Pump maintenance required (ACO Service)
Pump parts are worn
Pump repair required (ACO Service)
Pump only runs in
manual operation
Control pipe of the level switching is leaking,
incorrectly laid, kinked or obstructed
Check the control pipe
Back pressure bell blocked
Clean the back pressure bell
Closed back pressure bell defective
Replace the closed back pressure bell
Level probe is defective
Exchange the level probe
Float switch is defective
Exchange the float switch(es)
Knocking noises/
vibrations in the
pressure pipe on
switching off the
pump(s)
After-running period of the pumps is too short Increase pump after-running period
Fault messages at the control
No claim is made that the list is complete.
Display panel
LED display(s)
Cause(s)
Actions
Maximum current
Power consumption too high
(automatic shut-off)
Acknowledge malfunction
If the malfunction remains:
Contact ACO Service
Flood alarm
Ball valve and/or gate valve
in the pressure pipe is not
fully open and/or is closed
Fully open the ball valve or
stop valve in the pressure
pipe
Automatic mode is switched
off
Switch on automatic mode
Pump motor is defective
Pump replacement required
(ACO Service)
Impeller or grinder (pump)
blocked
Pump maintenance required
(ACO Service)
Pressure pipe obstructed
Clean the pressure pipe
Pump parts are worn
Pump repair required (ACO
Service)
