POWER LIGHT IS FLASHING AND SERVICE LIGHT IS ON
Pool water needs salt
Test salt level of water. Add salt if necessary.
Cell is clogged or dirty
Check and clean cell.
Water temperature is low
Check water temp (if below 60 degrees, turn system off).
Insufficient water flow
Make sure pump is running. Check and correct all valve alignments.
Insufficient water flow- dirty filter
Follow filter cleaning procedures.
Sensor tab (top of cell) issues
Clean off any calcium on sensor tab. Make sure there is not an air bubble at point of sensor tab in cell housing- if there is, contact your pool professional or CMP Tech Support.