AGM Error
Press the Power button to clear the Error Code.
If Error happens again:
- Turn power OFF and ON at the main power switch internal to the water heater.
- Ensure fan inlet hole is completely open after turning the power OFF and ON.
- Check wiring connections to the AGM. Ensure all are secure.
- Check AGM operation.
- Replace AGM components.
- If the problem persists, replace the main control.