13
Immergas
False Flame Detection / Ionization Circuit Error
Error 13; unit reports ionization fault or flame present when there should be none.
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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
Shorted ionization electrode to ground, Moisture on burner or electrode, Faulty control board ionization circuit, Incorrect grounding of appliance
How to Fix / Troubleshooting
Safety: Turn off power and gas before opening the combustion chamber.
- Inspect ionization electrode: Check that the electrode rod is not touching the burner or other metal parts. Ensure the ceramic insulator is intact and dry.
- Dry moisture: If there is condensation or water inside the combustion chamber, identify and fix the source (e.g., flue condensate leak) and dry components thoroughly.
- Check grounding: Verify that the appliance is properly earthed and that the earth wire is securely connected.
- Reset and test: After correcting any issues, restore power and gas, reset the unit, and observe operation.
Important: Persistent false flame detection usually indicates a control board issue that should be addressed by a professional.
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Repair Difficulty
Hard
4/5
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