Tapworks

Tapworks Water Softeners Error Codes

Complete list of fault codes and troubleshooting guides. Use the search below to find your specific error.

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E1
Control panel displays E1 and the softener does not start a regeneration cycle
Control Board / Power Supply Fault
E10
E10 error, and the unit reports excessive water usage or a leak alarm.
Continuous Flow / Leak Detection Fault
E11
E11 error, and the unit indicates brine draw failure during regeneration.
Brine Draw / Injector Fault
E12
E12 error, and the unit reports drain failure or high water in the brine tank.
Drain Line / Brine Refill Fault
E13
E13 error, and the unit indicates a resin bed or capacity calculation fault.
Resin Capacity / Programming Fault
E14
E14 error, and the unit reports a communication fault between the display and the main board.
Internal Communication / Interface Fault
E15
E15 error, and the unit indicates a configuration or parameter error after power‑up.
Configuration / Parameter Memory Fault
E2
E2 displayed and the unit will not advance through regeneration steps
Motor / Cam Drive Fault
E3
E3 error and the display shows incorrect time or loses settings frequently
Control Memory / Clock Failure
E4
E4 displayed and the unit does not measure water usage correctly (regenerates too often or not at all)
Flow Meter / Turbine Sensor Fault
E5
E5 error and the softener stops mid‑regeneration or cannot find the home position
Valve Position / Cam Sensor Fault
E6
E6 displayed and the unit will not accept new settings or buttons do not respond
Keypad / User Interface Fault
E7
E7 error, and the display shows an abnormal salt level or brine tank alarm.
Salt Level / Brine Sensor Fault
E8
E8 error, and the unit reports abnormal water temperature or shuts down.
Temperature Sensor Fault
E9
E9 error, and the unit indicates abnormal inlet pressure or shuts down during regeneration.
Pressure / Safety Fault
Symptom
Brine tank has very little or no water before regeneration (appears dry).
Insufficient Brine Refill
Symptom
Brine tank overflows or is excessively full of water.
Brine Tank Overfill
Symptom
No water flow to the house when the Tapworks softener is in the service position.
No Flow / Blocked Valve
Symptom
Salt level in the brine tank does not seem to decrease over time.
Salt Bridging / Salt Mushing
Symptom
Softener causes a noticeable drop in water pressure throughout the house.
Flow Restriction Through Softener
Symptom
Softener emits a constant humming or buzzing noise from the control head.
Motor or Transformer Noise
Symptom
Softener produces salty-tasting water at the taps after regeneration.
Residual Brine in Service Water
Symptom
Softener stuck in regeneration and continuously running water to drain.
Valve Stuck in Regeneration Position
Symptom
Tapworks softener constantly runs to drain even when not regenerating.
Internal Valve Leak to Drain
Symptom
Tapworks softener display is blank or very dim; the unit appears dead.
No Power to Control
Symptom
Tapworks softener does not regenerate at all (no scheduled or manual regeneration).
Regeneration Control Failure
Symptom
Tapworks softener frequently loses time or settings after short power cuts.
Backup Power / Memory Retention Failure
Symptom
Tapworks softener installed in garage or outbuilding and has intermittent issues in cold weather
Temperature / Freezing Related Faults
Symptom
Tapworks softener installed, but water remains hard because the unit is plumbed incorrectly.
Incorrect Plumbing / Bypass Piping
Symptom
Tapworks softener is leaking water from around the valve head.
Valve Head External Leak
Symptom
Tapworks softener makes loud banging or hammering noises during regeneration.
Water Hammer / Rapid Valve Operation
Symptom
Tapworks softener regenerates at the wrong time of day.
Clock / Time Setting Issue
Symptom
Tapworks softener uses much more salt than expected.
Excessive Salt Consumption
Symptom
Tapworks softener uses very little or no salt over several weeks.
Insufficient Regeneration / Salt Usage
Symptom
The display works, but buttons are slow to respond or require very hard presses.
Worn Keypad / Contaminated Contacts
Symptom
Water leaking from around the brine tank or from the brine well.
Brine Tank Leak
Symptom
Water remains hard at the taps even though the Tapworks softener appears to run normally (no error code).
Loss of Softening Capacity
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