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A01

Lamborghini A01 on a gas boiler: burner does not ignite

Verified with sources1 sourceReviewed Oct 19, 2026
Technician coming? See the 2 steps they must show you
Wall-mounted combi gas boiler installed in a home
Kai KemmannCC BY-SA 4.0Image source

Risk level

High

Professional inspection is recommended.

Urgency

High

Quick answer

Lamborghini A01 means the burner did not ignite and the boiler is locked out. Check that the gas cock is open, try one reset at most and, if the code returns, stop and call an authorised service technician.

Safety first

Stop and check this first

  • If you smell gas, ventilate by opening windows, shut the gas cock if that is safe, use no switches or flames, leave the building and phone your distributor's emergency service or 112.
  • One reset is the most you should attempt. If A01 returns, stop trying: endless restarts only repeat a failed ignition.
  • Do not open the boiler or touch the electrode, burner or gas valve: the manual leaves that work to an authorised technician.

Safe checks you can perform

  • See that power is on and the gas is open
  • Make one reset attempt
  • The technician checks gas, electrode and trap

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Ignition diagnosis by the official service
  • Do not attempt this professional task: Calibration and combustion analysis after the work

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.

  1. Ignition diagnosis by the official service

    What they doAn authorised technician walks through the A01 causes in the manual's order and records what was measured for each.

    They must show youthe gas pressure measured, the state of the electrode and trap and the result of each check.

    In writingthe A01 code, the cause found and the parts reviewed or replaced.

  2. Calibration and combustion analysis after the work

    What they doThe manual requires the [AUTO SETUP] calibration procedure for A01 or A06 faults where needed and after replacing the electrode, burner, gas valve or fan.

    They must show youthe combustion values measured after the calibration.

    In writingthat the calibration was run and the final combustion 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.

  1. See that power is on and the gas is open

    No special tools

    Who:
    you, no tools.
    How:
    Check that the display is lit and that the gas cock ahead of the boiler is open, as the manual says when switching the unit on.
    Result that matters:
    A shut cock or a supply cut is enough on its own to stop the burner lighting.
    If the cock was shut and you do not know why, do not force anything and ask the service technician before reopening it.
    If power is on and the gas is open, go on to the single reset in the next step.
    Evidence to keep:
    a photo of the display showing A01 and a note of the cock position.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  2. Make one reset attempt

    No special tools

    Who:
    you, no tools.
    How:
    Follow the manual's procedure for type A faults: hold the button until Confirm? appears, then confirm with the button shown. Do it once only.
    Result that matters:
    What counts is whether the boiler lights again and whether A01 comes back.
    If the boiler lights and the code does not return, note the date in case it repeats.
    If A01 returns, do not repeat the reset or keep restarting:
    leave the boiler off and call an authorised service technician.
    Evidence to keep:
    date, time and how many times A01 has shown.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  3. The technician checks gas, electrode and trap

    Tools required

    Who:
    official Lamborghini service or an authorised gas installer, with measuring equipment.
    How:
    Follows the table order: gas arriving without air in the pipes, gas supply pressure, electrode position, wiring and deposits, and the state of the trap.
    Result that matters:
    Each point is ruled out or corrected before moving to the next, with no parts swapped blindly.
    If one of those causes turns up, it is corrected and ignition is repeated to confirm A01 does not return.
    If all are fine and A01 persists, the ducts, calibration, board and gas valve are examined.
    Evidence to keep:
    a sheet listing each check, the measured gas pressure and the parts reviewed.

    The boiler has to be opened and the gas circuit worked on: authorised staff only, with the mains disconnected and the gas cock closed when the manual requires it.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

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
Lamborghini Caloreclima
Product type
Gas boiler

Known code variants

  • A-01
  • aerotermia Toshiba A01
  • Alhena Tech C A01
  • Anomalía A01 Ferroli
  • Beretta A 01
  • bomba de calor Toshiba A01 bomba
  • caldera Lamborghini A01
  • Ciao Green A01
  • Cointra A 01
  • Error A01 Beretta
  • Error A01 Cointra
  • error A01 Estia
  • Error A01 Ferroli
  • Estia error A01
  • Estia R32 A01 caudal de agua
  • Estia R32 A01 water flow
  • Ferroli A01
  • Ferroli A01 boiler
  • Ferroli A01 caldera
  • Ferroli error A01
  • Lamborghini A01
  • Lamborghini boiler A01
  • Lamborghini Caloreclima A01
  • Lamborghini el quemador no se enciende
  • Lamborghini no burner ignition
  • Superlative A01
  • Toshiba air to water A01 pump
  • Toshiba Estia A01
  • Toshiba heat pump A01
  • Toshiba HWT A01

What it means

In the Alhena Tech C faults table, A01 is listed as no burner ignition. Faults marked with the letter A cause permanent shutdowns: they are cleared by holding the indicated button until Confirm? appears and then confirming. The manual lists several possible causes, from no gas to the electrode, trap, ducts, calibration, board or gas valve, so the code alone does not prove which part is at fault, and repeated resets fix none of them. The manual is multilingual; this entry follows its English pages.

Warnings and stop conditions

  • Higheditorial warning

    If you smell gas, ventilate by opening windows, shut the gas cock if that is safe, use no switches or flames, leave the building and phone your distributor's emergency service or 112.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  • Mediumeditorial warning

    One reset is the most you should attempt. If A01 returns, stop trying: endless restarts only repeat a failed ignition.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  • Highsource verified

    Do not open the boiler or touch the electrode, burner or gas valve: the manual leaves that work to an authorised technician.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

Symptoms and causes

Probable causes · in order

  • No gas reaching the boiler or air in the pipesCommon

    The first cause in the table is that there is no gas, or air sits in the pipework, for instance after a supply cut or a closed cock.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  • Electrode that lights and senses the flamePossible

    The manual asks for the electrode to be correctly positioned, wired and free of deposits, and replaced if necessary.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  • Insufficient gas supply pressurePossible

    The table lists a gas supply pressure that is too low among the reasons for a failed ignition. It is checked with proper measuring equipment.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  • Condensate trap or duct obstructionPossible

    A blocked condensate trap or obstructed air and flue ducts are given as causes. Checking them means opening the boiler and the terminals.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

  • Calibration, board or gas valveLess common

    Incorrect calibration, a defective circuit board or a faulty gas valve close the list of possible causes for A01.

    Evidence: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)

Virtual technician

Does A01 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

Sources: Lamborghini Caloreclima Alhena Tech C, manual multilingüe cod. 3541V514 (sección en español)reviewed 2026-10-19 · verified

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