E10 error and the unit reports excessive water usage or leak alarm

Safety: If you suspect a leak, turn off the main water supply to prevent damage.

• Check for visible leaks: Inspect all taps, toilets, and appliances for running water. Listen for hissing or flowing water when all fixtures are off.
• Isolate the softener: Put the Tapworks softener into bypass. If the flow indication on the display stops, the leak is likely in the house plumbing. If it continues, the valve may be stuck open or the flow meter is faulty.
• Inspect the valve: With water off, remove the valve cover and check for debris or damage preventing the rotor disc from sealing. Clean and reassemble.
• Review settings: On models with programmable leak thresholds, verify that the settings match your household usage pattern. Reset to factory defaults if unsure.
• If E10 persists with no actual flow: Replace the Tapworks turbine flow meter or consult a technician to test the control board.