Jandy CG Port Sensor Replacement Kit R0452500 (Used on PLC 1400 and PLC700 Cell) 16' cord. This is a sensor replacement kit. New in the box. 90% of the time if you have an issue with the PLC cell it is the sensor. But check the following items first:
1- Check cell for cleanliness and serviceability.
2- Check salt levels in the pool.
If the above two items are good and the lights are on the display then replace the sensor.