Immergas Unstable Flame / Early Shutdown

Furnace starts but shuts down after a few seconds without showing a specific error code

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.

Possible Causes

Incorrect gas pressure, Partially blocked burner, Faulty ionization signal, Fan speed not matching combustion requirements

Safety: Combustion adjustments and burner cleaning should be done by a gas-qualified technician.

Steps:

1. Observe flame (technician): Check flame shape and stability through the inspection window.
2. Clean burner: Remove and clean the burner assembly to remove dust or debris.
3. Check gas pressures and combustion: Adjust according to Immergas specifications.
4. Verify ionization electrode and wiring: Ensure a stable flame signal is present.

Professional Required 5/5

Burner Assembly

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