Due to intensive use or damage, you may have to replace the power line for the Core Sensor 3 bar. If you have any doubts about this, replace your power line in time to prevent a swim! The power line is the line above the depowersysteem until the beginning of the power lines. If you have any questions about how to replace the power line for the Core Sensor 3 bar, please contact us! Number 5 in the picture