My unit appears to be softening H2O just fine, there's just one glitch. The "Check Salt level" light is flashing. Salt level is at the "4" mark, and holding the button down to adjust the salt level gauge does nothing except create a fast,
chirping beep.............the salt level indicator does not change. I leveled the salt in the tank, but haven't checked for a salt bridge yet...I'll do so tomorrow. I kind of suspect a problem with the main circuit board. Any thoughts?
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