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Daikin / AURORA R-32

Daikin FILTER CLEANING SIGN status display

The filter cleaning sign is a reminder to clean the user-removable indoor filter. It is not the same thing as a sensor or board fault.

Urgency
informational
Verified
Jul 30, 2026
Fix path
Not an error

What it means

The filter cleaning sign is a reminder to clean the user-removable indoor filter. It is not the same thing as a sensor or board fault.

Urgency

Not an error

This is a normal status indication, not an error, unless comfort is poor, water is present, or the indication never clears.

Likely causes

    Homeowner fix

    Turn the unit off, clean and dry the washable filter, reinstall it fully, then reset the reminder according to the controller instructions.

    When to call a pro

    Call for service only if the sign will not reset, the filter will not seat correctly, or airflow remains weak after cleaning.

    Repair vs replace

    This is a normal operating status, not a repair-or-replace decision.

    Your Daikin model

    AURORA R-32 model pages in the Daikin catalog help compare this repair path with current replacement options.

    Parts for this line

    The parts catalog for Daikin AURORA R-32 lists 7 sourced replacement parts for this product line.

    Open parts page

    For your technician

    Technician note: maintenance reminder only; verify filter fitment and reset procedure before diagnosing airflow faults. Page context: Daikin maps this display to the AURORA R-32 line; source: Daikin Nineteen, ATMOSPHERA, Entra, and MXM/MXT/MXTH local service manuals.

    Which systems show it

    • Daikin current US residential R-32 ductless single-zone systems, including AURORA R-32, ATMOSPHERA R-32, Entra R32, OTERRA R-32, and Nineteen-series style high-wall diagnostics where the same Daikin A/C/E/F/H/J/L/P/U code family is used.
    • Daikin concealed-duct/FDMQ indoor units where the Nineteen service manual explicitly lists the same indoor drain, fan PCB, remote-controller, and FDMQ-only C/U codes.
    • Daikin AURORA Multi R-32 and Standard Multi R-32 MXT/MXTH/MXM systems where the MXM engineering manual lists the same homeowner code table.
    • MXM/MXT/MXTH multi-zone systems for the additional multi-zone U-series and inverter/control codes specifically called out from the MXM manual.

    Related troubleshooting

    Use the symptom guide alongside the exact display code if the unit is flashing, cycling, or showing comfort symptoms.

    Reset note

    Turn the unit off, clean and dry the washable filter, reinstall it fully, then reset the reminder according to the controller instructions.

    Manual trigger

    The filter cleaning sign is a reminder to clean the user-removable indoor filter. It is not the same thing as a sensor or board fault.

    Related codes

    Source

    Daikin Nineteen Series Service Manual SiUS091601ED
    Section
    Temperature Display Switch and selectable display items
    Page
    PDF page 217

    Short quote: "Filter cleaning sign"

    Sourced Jul 2026

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