Daikin Air Conditioner Error L5-00

⚡ Quick Answer: The Daikin air conditioner L5-00 error indicates a compressor overload protection issue, triggered by an overcurrent detected in the inverter. This re... ⚠️ Difficulty Varies

What Does Error L5-00 Mean?

The Daikin air conditioner L5-00 error indicates a compressor overload protection issue, triggered by an overcurrent detected in the inverter. This results in immediate unit shutdown, often accompanied by unusual humming sounds and insufficient heating or cooling performance. If the unit displays the L5 code, it signifies that the inverter or compressor has shut down to prevent damage due to excessive current draw, which may be caused by internal faults or connection issues.

Common Symptoms:

  • unit stops operation immediately with the L5 code displayed
  • insufficient cooling/heating performance due to shutdown
  • outdoor unit error indication

Possible Causes

  • Inverter (IPM/PCB) overcurrent protection triggered due to internal fault (medium)
  • Compressor fault leading to excessive current draw (medium)
  • Compressor harness or connection issues (medium)

How to Fix Error L5-00

DIY Fix Basic checks and power reset

  1. Turn off the unit using the remote and isolate power at breaker
  2. Wait at least 1 minute before restoring power
  3. Power on and monitor if L5 reoccurs

Technician Only System diagnostics and component inspection

  1. Power down and verify all power is disconnected
  2. Inspect outdoor unit inverter PCB/IPM for damage or failed power transistors
  3. Test compressor windings and insulation for shorts
  4. Verify compressor harness and connector integrity and replace if damaged
  5. Replace faulty inverter PCB or compressor as indicated by test results

Parts needed: inverter PCB/IPM module, compressor unit, harness/connectors

🛑 When to Call a Pro:
  • If L5 persists after basic reset
  • If you observe unusual noises from compressor or visible damage to outdoor unit
  • If you do not have tools/skills to safely test high voltage components

Next step

Choose the next step for L5-00

Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.

Based on diagnostic data

Most relevant component to inspect

Compressor

Compresses refrigerant within the sealed cooling system and requires specialized service equipment.

Typical part-only price
$180 - $600
DIY difficulty
Hard
Estimated time
120-240 mins
Where can I find the model number?

Check the rating label around the door, lid, frame, rear panel, or inside the appliance cabinet. Use the complete model number, including suffixes.

Find a part that fits my model

Verify the complete model and part number on the retailer's compatibility page before ordering.

Other parts options

Check related components first; use model search as a fallback.

Model number required

Model-compatible Air Conditioner parts

Enter the complete model number to browse compatible replacement parts. This is a model-based parts search, not a diagnosis that a specific component failed.

Find a part that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. We may earn a commission from other qualifying purchases or service requests made through links on this page, at no additional cost to you. Recommendations are based on repair relevance, not commission rate.

Optional routine care

Maintenance supplies

These products support cleaning or routine upkeep. They are separate from the possible repair components above and are not claimed to fix this error code or symptom.

Maintenance supply

Air Conditioner Fin Cleaner

For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.

View maintenance supply
Maintenance supply

Model-Compatible Washable AC Filter

A reusable filter option only where the appliance supports one. Match the full model, dimensions, and filter specification.

Compatibility check required: use the complete appliance model and compare the existing filter, bag, or specification before ordering.

Find one that fits my model

Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.

Technical Specifications

wattage 2000W
component Compressor
resistance 5-15 ohms
part_number DAIKIN 4E160001
voltage_rating 220V AC

Common Questions

What does L5-00 error mean on daikin air conditioner?

The L5-00 error indicates a compressor overload protection issue, causing immediate shutdown and insufficient performance.

Can I fix daikin air conditioner L5-00 error myself?

Yes, you can perform basic checks and a power reset to see if the error resolves.

How much does it cost to fix L5-00 error?

Repair costs can be high, especially if replacing the PCB or compressor is necessary.

When should I call a technician for L5-00?

Call a technician if the L5 code persists after a reset or if you notice unusual noises or visible damage.

Sources & References

Data last verified: 2026-07-25

User Comments (0)

Share your experience or solution below.

Be the first to comment!