- Boilers
- Gas boiler
E06
Domusa E06 on an Avanttia NG gas boiler: burner lockout
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
Domusa E06 means a burner lockout on the Avanttia NG: ignition failed because of a fault in the burner or the gas installation. Check that the gas valve is open and press RESET once. If it happens again, switch the boiler off and call the service technician.
Safety first
Stop and check this first
- If you smell gas: Domusa says do not smoke, light flames or cause sparks, do not operate switches or electrical appliances, open doors and windows, close the main gas valve, switch the heating off, keep people out of the area and tell your gas company, following the instructions next to the meter. Call from outside the home.
- If you smell combustion fumes: Domusa says switch the heating off, ventilate the room, close doors so the gas does not spread to other rooms and do not operate switches or electrical appliances. Carbon monoxide has no smell: if you feel headache, dizziness or nausea, get out and call for help. A CO alarm helps.
Safe checks you can perform
- Gas or flue gas smell near the boiler
- Gas shut-off valve open
- One RESET
- Propane tank recently filled
- Gas, burner and combustion by the service technician
Leave these tasks to a qualified professional
- Do not attempt this professional task: Gas pressure and flow
- Do not attempt this professional task: Burner cleaning and check
- Do not attempt this professional task: Ignition cycles and tightness
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.
Gas pressure and flow
What they doMeasures the gas supply pressure and flow and compares them with the data sheet (20 mbar on G20, 37 mbar on G31).
They must show youthe pressure measured against the data sheet.
In writingthe value and what was corrected.
Burner cleaning and check
What they doChecks and cleans the burner and combustion chamber with a soft brush or compressed air, without chemicals, as the maintenance section says.
They must show youthe burner's condition.
In writingwhat was cleaned or replaced.
Ignition cycles and tightness
What they doAfter the work, runs several ignition cycles checking every component and checks the gas and water circuits for leaks.
They must show youseveral correct ignitions.
In writingthe test done and the tightness check.
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 or flue gas smell near the boiler
- Who:
- you.
- How:
- walk up without pressing switches or turning lights on and notice whether there is a smell of gas or combustion fumes.
- Result that matters:
- whether there is a smell or not.
- If there is a smell:
- do not touch the boiler and follow the gas warning on this page.
- If there is no smell:
- go on to check the gas valve.
- Evidence to keep:
- the time and what you noticed.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
Gas shut-off valve open
- Who:
- you.
- How:
- check that the gas shut-off valve before the boiler is open and, if you have another gas appliance, whether it works.
- Result that matters:
- whether gas is reaching the home.
- If the valve was closed:
- open it and go to the reset.
- If the other appliance does not work either:
- the problem is the supply; tell your gas company.
- Evidence to keep:
- a photo of the valve and of the display showing E06.
Evidence: Domusa Teknik Avanttia NG, instrucciones de instalación y funcionamiento (CDOC001924) · Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
One RESET
- Who:
- you.
- How:
- press the RESET button once, as the manual says, and watch whether the boiler lights.
- Result that matters:
- whether it starts or E06 returns.
- If it returns:
- Domusa says that if the lockout repeats, switch the boiler off and call the official service.
- If it starts:
- note the time in case it returns.
- Evidence to keep:
- the reset time and what happened next.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
Propane tank recently filled
- Who:
- you, if the boiler runs on propane.
- How:
- think whether the tank was filled or installed recently.
- Result that matters:
- whether the fault started after a fill or a new installation.
- If it matches:
- Domusa says to contact the person responsible for filling the tank first so they purge it.
- If the boiler runs on natural gas:
- skip this step.
- Evidence to keep:
- the date of the last tank fill.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
Gas, burner and combustion by the service technician
- Who:
- Domusa official service technician.
- How:
- measures the gas supply pressure, checks and cleans the burner, checks the gas valve and runs several ignition cycles.
- Result that matters:
- whether the gas, the burner or the control is failing.
- If the gas pressure is low:
- corrects the installation or contacts the gas distributor.
- If the gas arrives correctly:
- the burner and ignition become the suspects.
- Evidence to keep:
- a report with the measured pressure and what was adjusted.
Domusa reserves boiler servicing for staff authorised by the manufacturer. Inside are the burner, the gas valve and mains voltage parts.
Evidence: Domusa Teknik Avanttia NG, instrucciones de instalación y funcionamiento (CDOC001924) · Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
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
- Domusa Teknik
- Product type
- Gas boiler
Known code variants
- Avanttia NG E06
- Balay E06 no vacía
- Balay E06 not draining
- Balay lavadora E06
- Balay washer E06
- Balay washing machine error F04
- Bosch dishwasher E06
- Bosch dryer E06
- Bosch dryer E06 not heating
- Bosch E06
- Bosch E06 error
- Bosch E06 error tumble dryer
- Bosch E06 secadora
- code erreur E06 lave-vaisselle Siemens
- codice E06 Siemens
- código E06 lavavajillas Bosch
- código E06 Siemens
- Domusa E 06
- E 06
- E06 Bosch dishwasher
- E06 Siemens dishwasher
- E6
- E:06
- erreur E06 Siemens
- Error E06 Domusa
- error E06 lavavajillas Bosch
- error E06 lavavajillas Siemens
- error E06 secadora Bosch
- errore E06 lavastoviglie Siemens
- F04
- Fehlercode E06 Siemens
- lavadora Balay error F04
- lavavajillas Bosch E06
- secadora Bosch E06 no calienta
- Siemens dishwasher E06
- Siemens E06
- Siemens Geschirrspüler Fehler E06
What it means
On the Domusa Avanttia NG, E06 is an ignition failure. The boiler stops the burner and no longer heats the system. Domusa puts it down to any fault in the burner or in the fuel installation, and it is unlocked by pressing RESET. If the lockout repeats, the manufacturer says to switch the boiler off and call the official service. With propane, Domusa warns that ignition problems can occur if the tank has not been properly purged. The same table has related codes: E41 flame fault after 6 ignitions, E81 first ignition attempt failed and E84 gas inlet pressure.
Warnings and stop conditions
- Criticaleditorial warning
If you smell gas: Domusa says do not smoke, light flames or cause sparks, do not operate switches or electrical appliances, open doors and windows, close the main gas valve, switch the heating off, keep people out of the area and tell your gas company, following the instructions next to the meter. Call from outside the home.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
- Higheditorial warning
If you smell combustion fumes: Domusa says switch the heating off, ventilate the room, close doors so the gas does not spread to other rooms and do not operate switches or electrical appliances. Carbon monoxide has no smell: if you feel headache, dizziness or nausea, get out and call for help. A CO alarm helps.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
Symptoms and causes
Probable causes · in order
- Gas not reaching the boiler properlyCommon
Domusa names faults in the fuel installation. A closed shut-off valve, a supply cut or low inlet pressure stop the flame from forming.
Evidence: Domusa Teknik Avanttia NG, instrucciones de instalación y funcionamiento (CDOC001924) · Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
- Propane tank not purgedPossible
With propane, Domusa warns of ignition problems if the tank has not been purged of air and says to contact the person who fills it first.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
- Burner faultPossible
The other branch Domusa gives is the burner itself. Its cleaning, the gas valve and combustion are checked only by the service technician, with the boiler open.
Evidence: Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
Virtual technician
Does E06 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
Domusa Teknik Avanttia NG, instrucciones de instalación y funcionamiento (CDOC001924)
Domusa Teknik · 2023 · manual
- 2
Domusa Teknik Avanttia NG, guía rápida de funcionamiento para el usuario (CDOC001923)
Domusa Teknik · 2020 · manual
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