The most common reason for the "FULL" indicator is that the safety float inside the has been triggered.
When you look at the digital display on your 40278 unit, you might see the word "FULL." This is not an error code; it is a status message. 40278 water softener full
: The "Demand Regeneration" computer tracks water usage and only cycles when necessary, saving both water and salt compared to timer-based units . The most common reason for the "FULL" indicator