E15
AquaHouse
Resin Tank Pressure / Level Sensor Fault
E15 displayed and the unit indicates a resin tank sensor or safety fault.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed resin tank pressure switch (if equipped), Damaged tank level sensor, Loose sensor wiring, Internal leak causing abnormal readings
How to Fix / Troubleshooting
Safety first: Unplug the softener and place it in BYPASS before removing any sensor from the resin tank. Depressurize by opening a downstream faucet.
Step-by-step:
- 1. Identify the sensor: Some AquaHouse models include a pressure or level sensor on the resin tank dome or side. Locate this component and its wiring.
- 2. Inspect for leaks: Check around the sensor port for water seepage or cracks in the tank boss. Any structural damage to the tank requires immediate replacement.
- 3. Check wiring and connector: Ensure the sensor harness is intact and firmly connected to the control board.
- 4. Reset controller: After verifying connections, restore power and clear the error via the control panel. Monitor for reoccurrence.
- 5. Replace sensor if needed: If E15 persists and no leaks are present, replace the AquaHouse resin tank sensor with an identical part.
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Repair Difficulty
Hard
4/5
Required Part
AquaHouse Resin Tank Sensor
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