Clean the salt cell with diluted acid. Muriatic acid works best.

Yes, you can fix that “check cell” light yourself. Pull the cell out of the plumbing first. Look for white scale or calcium buildup — that’s almost always the problem.

Mix a solution of 1 part muriatic acid to 4 parts water in a bucket (always add acid to water, not the other way around). Submerge the cell for 10-15 minutes until the bubbling stops. Rinse thoroughly with a hose and reinstall.

If the light stays on after cleaning, the cell is likely dead and needs replacement. No amount of scrubbing will fix a worn-out plate.