Staff Answer
Aug 18, 2026 - 08:41 AM
This may occur depending on the model salt chlorinator you have. There are a number of conditions (below) which send a similar signal to a salt chlorinator. If your salt chlorinator model has more than one light one, check the following issues in this order to help confirm what precisely may be happening.
Verify salinity - Perform independent tests to ensure that the pool water's salinity is in range (recommended: titration-based chemical test, or else a recently-calibrated digital test).
Inspect / clean the cell - Ensure that the cell is fully cleaned (multiple times in a row if necessary, so that when fresh cleaning solution is added there is no "fizzing"). Flush cell thoroughly with a hose-end nozzle.
Check connections - Ensure that all connections and cables are fully tight, fully seated, and free of debris or damage.
Check water level / flow - Ensure that water is completely filling the Cell throughout daily operation, esp. if getting daily repetitive warnings.
Check controller setting - Ensure that the controller has not inadvertently been changed to a different cell-type setting (if applicable).
Check water temperature - Ensure that the water is within normal operating temperatures (typically high 50's to 130's F, depending on model).
After checking the above - Power the unit off and on to confirm; if the cell is depleted, and all other issues have been resolved, any warning will come on within the first 1-5 minutes or so of turning the unit on.
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