Kessel Aqualift F Basic Instructions D'utilisation page 80

The functional check is successful if the following procedures
are carried out as described:
✓ Level alarm is triggered, the alarm LED (2) flashes red, a
signal tone is generated and the wastewater pump starts
to empty the system tank.
✓ After reducing the level below the alarm threshold, the
alarm LED (2) extinguishes and the two orange LEDs
(level (3) and pump operation (4) / (5)) illuminate until the
system tank has been emptied by the wastewater pump.
Visual inspection:
Once the wastewater pump has stopped running, only a
few centimetres of water should be left in the system tank.
Fasten the cover plate back onto the system.
✓ The system is ready for operation
80 / 144 Pumping station / Installation and operating manual 016-102_01 DE_EN_FR