E15
Atlantic
Anode Monitoring Circuit Fault
Atlantic water heater shows E15; unit may still heat but indicates a 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
Open circuit in anode monitoring lead, incorrect anode type installed, control board sensing circuit failure
How to Fix / Troubleshooting
Safety: Disconnect power before working on anode wiring.
- Verify that the correct Atlantic sacrificial or electronic anode type is installed for your model.
- Inspect the monitoring wire from the anode to the control board for breaks or loose terminals.
- Clean any corrosion on the anode connection point and re-tighten.
- If the wiring is intact and the correct anode is installed, the monitoring circuit on the control board may be defective; replace the board if the error persists.
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Repair Difficulty
Medium
3/5
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