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Daikin / AURORA R-32

Daikin L8 error code

L8 means the compressor is overloaded or a compressor motor lead may be disconnected. This is not homeowner-serviceable.

All CodesParts & filters
Urgency
advisory
Verified
Jul 30, 2026
Fix path
Technician

What it means

L8 means the compressor is overloaded or a compressor motor lead may be disconnected. This is not homeowner-serviceable.

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

  1. Dirty filters, blocked coil airflow, or an outdoor clearance problem increasing pressure or temperature
  2. Low charge, overcharge, leak, or refrigerant-flow restriction
  3. Discharge, pressure, or refrigerant sensor reading outside range
  4. Compressor, valve, or outdoor board issue after airflow and charge are verified

Homeowner fix

Turn the system off, clean filters and clear outdoor airflow, then reset once if safe. If L8 returns, leave it off.

When to call a pro

Call a licensed HVAC technician if L8 returns. Tell them the MXM table lists compressor overload or motor wire disconnection.

This code points to refrigerant or sealed-system, compressor, and electrical or inverter work - get repair quotes from contractors in your area.

Get repair quotes

Repair vs replace

A wiring correction may be modest; a compressor or inverter diagnosis can be expensive. Compare major repair with replacement on older equipment.

See Daikin mini-splits

Your Daikin model

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

See Daikinmini-splits ->

Parts for this line

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

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For your technician

Technician note: verify compressor leads, overload conditions, current, airflow/refrigerant load, inverter output, 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 eight 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.

Daikin mini split not coolingYour mini split is showing a refrigerant leak codeMini split leaking water

Reset note

Turn the system off, clean filters and clear outdoor airflow, then reset once if safe. If L8 returns, leave it off.

Manual trigger

L8 means the compressor is overloaded or a compressor motor lead may be disconnected. This is not homeowner-serviceable.

Related codes

L6L9 diagnosticsL5 diagnosticsLA diagnostics

Source

Daikin MXM-A, MXT-A, MXTH-A Series Engineering Manual EDUS122402
Section
BRC944B2 operation, malfunction code table
Page
PDF pages 267-269

Short quote: "Malfunction code Error content"

Sourced Jul 2026

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