Daikin / AURORA R-32
Daikin L5 error code
L5 means the inverter output current is abnormal. This can protect the power module and compressor, so repeated resets are a bad idea.
- Urgency
- advisory
- Verified
- Jul 30, 2026
- Fix path
- Technician
What it means
L5 means the inverter output current is abnormal. This can protect the power module and compressor, so repeated resets are a bad idea.
Urgency
advisory
This is not usually an immediate safety hazard, but do not keep resetting it. Try the safe homeowner check below; if the code comes back, schedule service.
Likely causes
- Brief power event, brownout, or unstable supply voltage
- Loose power connection, reactor, or outdoor electrical component problem
- Inverter/IPM protection or current-detection fault
- Compressor winding, drive, or outdoor board fault after power checks pass
Homeowner fix
Turn the system off for several minutes and reset once if safe. If L5 returns, leave the system off and do not force repeated starts.
When to call a pro
Call a licensed HVAC technician if L5 returns. Tell them the code is output overcurrent/IPM abnormality.
This code points to compressor and electrical or inverter work - get repair quotes from contractors in your area.
Get repair quotesRepair vs replace
IPM and compressor-drive faults can be expensive. Compare a confirmed inverter module or compressor repair with replacement on older equipment.
See Daikin mini-splitsYour 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: check compressor leads, winding/insulation, inverter output current, IPM, heat sink, and outdoor PCB. 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 L and five 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 system off for several minutes and reset once if safe. If L5 returns, leave the system off and do not force repeated starts.
Manual trigger
L5 means the inverter output current is abnormal. This can protect the power module and compressor, so repeated resets are a bad idea.
Related codes
Source
- Section
- Part 6 Service Diagnosis, troubleshooting for FTX/FVXS/FDMQ and outdoor unit
- Page
- PDF pages 137-196; service diagnosis pages 132-191
Short quote: "Troubleshooting"
Sourced Jul 2026