- Boilers
- Gas boiler
A06
Ferroli A06 on a gas boiler: no flame after ignition
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
Ferroli A06 means there is no flame after the ignition phase and the boiler locks out. Check gas is reaching it, reset once by pressing reset for one second and, if it does not start, call an authorised technician.
Safety first
Stop and check this first
- If you smell gas, do not reset: do not touch switches or light flames, open windows, close the gas valve if it is within reach, leave and call your distributor's emergency number from outside. Ferroli says to disconnect the boiler when it fails and have it repaired only by an authorised technician.
- Do not chain resets with A06: Ferroli says that if the boiler does not restart, the fault must be fixed. Do not open the boiler or touch the electrode, burner or trap.
Safe checks you can perform
- Gas supply
- One reset with the reset key
- Combustion check by an authorised technician
Leave these tasks to a qualified professional
- Do not attempt this professional task: Ionisation electrode check
- Do not attempt this professional task: Trap and duct check with final analysis
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.
Ionisation electrode check
What they doThe technician checks the ionisation electrode's position, condition and wiring and measures the flame signal.
They must show youthe electrode inspected and the flame reading.
In writingwhether it was cleaned, repositioned or replaced and why.
Trap and duct check with final analysis
What they doThe technician cleans the trap if needed, checks ducts and terminals and runs a combustion analysis.
They must show youthe analyser printout.
In writingthe condition of the trap and ducts and the measured values.
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.
Gas supply
- Who:
- you.
- How:
- check the gas valve before the boiler is open, as Ferroli requires for start-up, and whether the gas hob works. Do not touch anything inside the boiler.
- Result that matters:
- whether gas reaches the home.
- If the valve was closed or there is no gas:
- open it or call your distributor.
- If there is gas:
- the cause is in the boiler or its flue.
- Evidence to keep:
- a photo of the valve and a note of whether the hob worked.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
One reset with the reset key
- Who:
- you.
- How:
- press the reset key for one second, as Ferroli says for A lockouts.
- Result that matters:
- whether the boiler restarts and keeps a flame.
- If it restarts:
- note the date; if A06 returns, call the technician.
- If it does not restart or A06 returns at once:
- Ferroli says the fault must be fixed; disconnect the boiler and call an authorised technician.
- Evidence to keep:
- a photo of the display with A06 and the time.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
Combustion check by an authorised technician
- Who:
- authorised gas technician.
- How:
- checks the ionisation electrode, burner, trap and air and flue ducts, and runs a combustion analysis.
- Result that matters:
- which of the causes in Ferroli's table is present.
- If ducts or trap are blocked:
- that confirms that cause.
- If they are clear:
- it points to the electrode or burner.
- Evidence to keep:
- a report with what was checked, the combustion analysis and any part replaced.
Ferroli reserves repairs and component replacement for authorised technicians: electrode, burner and ducts are not the user's job.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
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
- Ferroli
- Product type
- Gas boiler
Known code variants
- A-06
- A6
- Anomalía A06 Ferroli
- Beretta A 06
- Ciao Green A06
- Cointra A 06
- Error A06 Beretta
- Error A06 Cointra
- Error A06 Ferroli
- Ferroli A06 caldera
- Superlative A06
What it means
In the BlueHelix Tech RRT fault table, A06 is "no flame after the ignition phase". Ferroli lists as causes an ionisation electrode fault, an unstable flame, blocked air or flue ducts and a blocked condensate trap. Codes with A are permanent lockouts reset with the reset key; if the boiler does not restart, the cause must be fixed. A06 differs from A01, where the burner never lights.
Warnings and stop conditions
- Criticaleditorial warning
If you smell gas, do not reset: do not touch switches or light flames, open windows, close the gas valve if it is within reach, leave and call your distributor's emergency number from outside. Ferroli says to disconnect the boiler when it fails and have it repaired only by an authorised technician.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
- Highsource verified
Do not chain resets with A06: Ferroli says that if the boiler does not restart, the fault must be fixed. Do not open the boiler or touch the electrode, burner or trap.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
Symptoms and causes
Probable causes · in order
- Ionisation electrodePossible
Ferroli says to check its position and replace it if needed. If the burner lights and goes out at once with correct gas, it is the first suspect.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
- Unstable flamePossible
Ferroli says to check the burner. A flame that will not hold can come from combustion, not the electrode.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
- Blocked air or flue ductsPossible
Ferroli says to clear the chimney, ducts and terminals. It often coincides with wind, ice or nests at the terminal.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
- Blocked condensate trapPossible
Ferroli says to check and clean the trap. A full trap prevents stable combustion; the technician checks it.
Evidence: Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
Virtual technician
Does A06 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
Ferroli BLUEHELIX TECH RRT 28 C instrucciones de uso instalación y mantenimiento
Ferroli · 2018 · manual
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