The digital display salt reading drops down every day to a low level whereby the yellow blinking “Check Cell” light comes on, and I have to re-calibrate the salt display reading to an increased number that keeps the yellow blinking light from coming on. I’ve checked the pool water salt level manually with salt test strips and get a salt reading about 3900. But after re-calibrating to about 3200 to 3500, the digital reading falls within about 4 hours to a reading of about 2100, and the yellow light starts blinking. I have cleaned the Cell Unit with the recommended acid and water mixture. All electrical connections are clean and tightly connected.
Question: Is my Cell Unit defective or could there be another problem like an electrical problem within the circuit board or panel?