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
- Temperature sensor reading out of range
- Loose sensor connector or damaged sensor lead
- Moisture, corrosion, or vibration affecting the sensor circuit
- Control board input fault after the sensor checks out
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.
- Daikin AURORA 9,000 BTU R-32 208/230V (FTXV09AVJU9 / RXT09AVJU9)
AURORA R-32
- Daikin AURORA 12,000 BTU R-32 208/230V (FTXV12AVJU9 / RXT12AVJU9)
AURORA R-32
- Daikin AURORA 15,000 BTU R-32 208/230V (FTXV15AVJU9 / RXT15AVJU9)
AURORA R-32
- Daikin AURORA 18,000 BTU R-32 208/230V (FTXV18AVJU9 / RXT18AVJU9)
AURORA R-32
Parts for this line
The parts catalog for Daikin AURORA R-32 lists 7 sourced replacement parts for this product line.
Open parts pageFor 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; display convention: match the letter F, letter I, letter L, letter T, letter E, letter R, letter C, letter L, letter E, letter A, letter N, letter I, letter N, letter G, letter S, letter I, letter G, and letter N marker exactly before comparing neighboring codes.
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
- Section
- Temperature Display Switch and selectable display items
- Page
- PDF page 217
Short quote: "Filter cleaning sign"
Sourced Jul 2026