Replacement Water Level Sensor
5m Water Level Sensor compatible with Tank Series C60 / C120 / C180 and L Series C12L and C24L from 2020 and later.
Simply unscrew and remove from the waterproof external connector housing, and replace with the new sensor.
If your water level sensor has stopped working, it could be that limescale has built up on the sensor ends inside your water butt / water tank. You can clean the sensor probes using some vinegar and an abrasive sponge.
If you need a water level sensor for a C series of C12 or C24 (2019 or earlier) you can find that here