- Boilers
- Gas boiler
69
Immergas 69 on a gas boiler: possible flue gas return
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
Victrix Omnia V2 code 69 warns of possible flue gas recirculation in a C10 installation, associated with the external damper. Arrange inspection of the flue system even though this warning does not lock the boiler out.
Safety first
Stop and check this first
- Do not remove or immobilise the damper associated with 69; its inspection concerns combustion gas discharge through the collective installation.
- If you smell gas while investigating 69, leave the home without operating switches or creating sparks; avoid flames and smoking, close the main gas valve if safe and call the gas emergency service from outside.
- Alongside warning 69, a CO alarm or headache, dizziness or nausea requires moving outside into fresh air and calling emergency services; do not wait for boiler lockout or re-enter until cleared to do so.
Safe checks you can perform
- Identify warning 69
- Prepare the installation history
- Check damper and recirculation
Leave these tasks to a qualified professional
- Do not attempt this professional task: Check damper and recirculation
- Do not attempt this professional task: Verify collective flue configuration
What a technician must be able to justify
Technician visit
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Check damper and recirculation
What they doA qualified gas installation technician verifies the C10 arrangement and checks whether the external damper explains the suspected recirculation.
They must show youthe damper condition and recirculation check.
In writingthe flue arrangement and whether damper damage was confirmed.
Verify collective flue configuration
What they doThe technician checks the configured damper presence and follows the C10 calibration instructions where applicable, avoiding settings unsuitable for a collective flue.
They must show youhow configuration corresponds to the installed flue.
In writingthe settings checked and final operating verification.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Follow these steps
Note: Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
Identify warning 69
- Who:
- you.
- How:
- Photograph 69 and note whether the boiler continues running; keep clear of the flue and leave damper inspection to the technician.
- What matters: The manufacturer describes a non-locking alarm, so continued operation does not rule out the flue problem.
- If the warning persists:
- request service with the complete code and model.
- If it has cleared:
- retain the record and report any recurrence.
- Evidence to keep:
- dated photograph of 69.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
Prepare the installation history
- Who:
- you.
- How:
- Locate the installation paperwork so the professional can confirm C10 and the collective flue arrangement; do not climb onto a roof to identify it.
- What matters: Installation history guides inspection but does not replace professional checks.
- If the warning persists:
- give this history to the qualified gas service company.
- If it has cleared:
- retain the record and report any recurrence.
- Evidence to keep:
- documents relating to Victrix Omnia V2 and 69.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
Check damper and recirculation
- Who:
- qualified gas installation technician.
- How:
- A qualified gas installation technician verifies the C10 arrangement and checks whether the external damper explains the suspected recirculation.
- What matters: The diagnosis must explain 69 using a verifiable check.
- If the warning persists:
- the professional completes diagnosis before signing off the repair.
- If it has cleared:
- retain the record and report any recurrence.
- Evidence to keep:
- the flue arrangement and whether damper damage was confirmed.
Internal inspection of Victrix Omnia V2 is restricted to qualified professionals; keep the casing closed.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
Still not solved
If the error persists, stop here. See what the technician must do and show you.
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Boilers
- Brand
- Immergas
- Product type
- Gas boiler
Known code variants
- 69
- Error 69
- Immergas 69
- Victrix Omnia V2 69
What it means
The Omnia V2 table describes 69 as a non-locking warning of possible recirculation detected through the flue gas sensor. It concerns a C10 installation and proposes a damaged external damper as a hypothesis rather than a confirmed defect. A technician must check the collective flue arrangement and that damper. Continued boiler operation does not remove the need to verify safe flue operation.
Warnings and stop conditions
- Highsource verified
Do not remove or immobilise the damper associated with 69; its inspection concerns combustion gas discharge through the collective installation.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
- Criticaleditorial warning
If you smell gas while investigating 69, leave the home without operating switches or creating sparks; avoid flames and smoking, close the main gas valve if safe and call the gas emergency service from outside.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
- Criticaleditorial warning
Alongside warning 69, a CO alarm or headache, dizziness or nausea requires moving outside into fresh air and calling emergency services; do not wait for boiler lockout or re-enter until cleared to do so.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
Symptoms and causes
Probable causes · in order
- Possible external damper defect on C10Possible
Immergas tentatively associates code 69 recirculation with a damaged external damper in a C10 installation; inspection is needed before confirming that cause.
Evidence: Immergas Victrix Omnia V2, instrucciones y advertencias para instalador, usuario y encargado de mantenimiento (1.047702SPA)
Virtual technician
Does 69 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
- 1
Immergas (Immerspagna) · 2026 · manual
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