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11

Toshiba 11 on an air conditioner: indoor fan motor failure

Verified with sources1 sourceReviewed Oct 4, 2026
Technician coming? See the 2 steps they must show you
Wall-mounted split air conditioner indoor unit
Dinkun ChenCC BY-SA 4.0Image source

Risk level

Medium

Proceed carefully and stop if the check is unclear.

Urgency

Medium

Quick answer

On Toshiba wall-mounted splits, 11 means a failure of the indoor fan motor or of its circuit on the board, and the whole unit switches off. Reset the power once and, if it returns, call a technician.

Safety first

Stop and check this first

  • This Toshiba uses R32, a flammable refrigerant. Toshiba asks you to call a qualified air conditioning technician or electrician if a breakdown occurs: unauthorised modifications are dangerous.

Safe checks you can perform

  • Reading the code in remote service mode
  • Power reset
  • Fan motor and its connection

Leave these tasks to a qualified professional

  • Do not attempt this professional task: Check motor and connection before the board
  • Do not attempt this professional task: Clear the code and test

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. Check motor and connection before the board

    What they doThe technician follows Toshiba's order: fan motor and connection first, indoor board second.

    They must show youwhat was found on the motor and connector.

    In writingwhich part was replaced, its reference and why.

  2. Clear the code and test

    What they doAfter the repair the technician clears the stored code from the remote in service mode (code 7F) and checks the fan runs without stopping again.

    They must show youa reading with no code after the test.

    In writingdate of the test and the result.

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. Reading the code in remote service mode

    No special tools

    Who:
    you.
    How:
    press CHECK on the back of the remote and step with TEMP; when the stored code appears, the indoor unit beeps for 10 seconds and all indicators flash.
    Result that matters:
    that the code is 11.
    If it is 11:
    Toshiba puts it on the indoor fan or its circuit; carry on with this page.
    If it is another:
    this page does not apply; look up that code.
    Evidence to keep:
    a photo of the remote with the code and the date.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

  2. Power reset

    No special tools

    Who:
    you.
    How:
    switch the unit off, isolate its circuit at the consumer unit and restore power, as Toshiba says after diagnosis.
    Result that matters:
    whether the unit runs again or switches off again with the indicators flashing. Toshiba notes the code stays stored in memory.
    If it switches off again:
    the fan fault is still there; do not keep trying and call a technician.
    If it runs:
    note the date; the technician can read the stored code.
    Evidence to keep:
    a note of each time it switched off and the mode it was in.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

  3. Fan motor and its connection

    Tools required

    Who:
    an air conditioning technician.
    How:
    with the power isolated, checks the indoor fan motor and its connection and, if they are fine, the indoor board.
    Result that matters:
    whether the fault is in the motor, the connection or the board.
    If the motor or connection fails:
    the cause is confirmed without touching the board.
    If motor and connection are fine:
    Toshiba says to check the indoor board.
    Evidence to keep:
    a job sheet with what was checked and photos of the motor connector.

    Requires opening the indoor unit with the power isolated; the unit uses R32. Technician only.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

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
HVAC
Brand
Toshiba
Product type
Air conditioner

Known code variants

  • 11
  • Ariston Velis 11
  • calentador Rinnai 11
  • código 11 Rinnai
  • E11
  • E:11
  • Er 11
  • error 11 Rinnai
  • Fujitsu 11
  • Fujitsu E11
  • Rinnai 11
  • Rinnai 11 no ignition
  • Rinnai code 11
  • Rinnai code 11 tankless
  • Rinnai error 11
  • Toshiba 11
  • Toshiba error 11
  • Velis error 11

What it means

Toshiba assigns code 11 to the indoor board when the indoor fan motor fails, has a locked rotor, a short circuit or a disconnection, or when the problem is in its circuit on the board. With 11 the whole unit is switched off. The code does not tell motor, connection and board apart: Toshiba says to check the motor and its connection first and only if they are fine, the board.

Warnings and stop conditions

  • Highsource verified

    This Toshiba uses R32, a flammable refrigerant. Toshiba asks you to call a qualified air conditioning technician or electrician if a breakdown occurs: unauthorised modifications are dangerous.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

Symptoms and causes

Probable causes · in order

  • Indoor fan motorCommon

    Failure, locked rotor or short circuit in the motor. Toshiba lists it first; it is confirmed by checking the motor with the power isolated.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

  • Motor connectionPossible

    A disconnection in the motor connector or cable gives the same code with a healthy motor; it is told apart by checking the connection before the motor.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

  • Motor circuit on the indoor boardPossible

    Only if motor and connection are fine, as Toshiba's order states. Replacing the board without ruling out the rest is not justified.

    Evidence: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-E

Virtual technician

Does 11 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: Toshiba service manual SVM-22103, R32 wall-mounted indoor units RAS-M05G3KVSG-E and RAS-M05G3KVSGB-Ereviewed 2026-10-04 · verified

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