Daikin Air Conditioner Error H6-00
⚡ Quick Answer: The Daikin Air Conditioner error code H6-00 signifies a communication failure between the indoor and outdoor units, often leading to the compressor no... ✅ DIY Fixable
What Does Error H6-00 Mean?
The Daikin Air Conditioner error code H6-00 signifies a communication failure between the indoor and outdoor units, often leading to the compressor not starting. This error may stem from an abnormality in the compressor operation-detection sensor or a lock condition due to overcurrent in the compressor motor. To resolve this, a thorough inspection of the compressor and its sensors is advisable.
Common Symptoms:
- Unit stops running and displays H6 error on remote or panel
- Compressor does not start or is detected as not operating properly
- Possible lock/overcurrent detection condition for the compressor
Possible Causes
- Compressor operation-detection sensor abnormality (medium)
- Compressor motor overcurrent/lock condition (medium)
How to Fix Error H6-00
DIY Fix Basic power cycle and observation
- Turn off the air conditioner using the remote and main breaker.
- Wait about 1–2 minutes to allow the unit to fully power down.
- Restore power and attempt to restart the unit while observing for immediate reoccurrence of H6.
Technician Only Professional compressor and sensor inspection
- Inspect outdoor unit compressor current and operation-detection circuitry.
- Check compressor motor winding resistance and current draw under load.
- Test and, if necessary, replace compressor operation-detection sensors or inverter/compressor driver PCB.
- Verify wiring and connectors between indoor and outdoor unit modules.
Parts needed: Compressor operation-detection sensor, Compressor motor, Inverter/control PCB
- If H6 reappears after power cycling
- If unusual noises or smells are present
- If the compressor does not start at all
Next step
Choose the next step for H6-00
Confirm the diagnosis before ordering. An error code can identify the system involved, but it does not prove that a specific part has failed.
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.
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.
HVAC Control Board
Controls fan, compressor, sensor, and communication functions in the HVAC unit.
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.
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.
Air Conditioner Fin Cleaner
For routine cleaning of accessible coil fins when permitted by the manufacturer. Disconnect power and follow product and appliance instructions.
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.
Affiliate disclosure: As an Amazon Associate I earn from qualifying purchases. Recommendations are based on routine-care relevance, not commission rate.
Technical Specifications
| note | The previous model-independent part specification was removed. Verify the full model number and diagnosis in the manufacturer's official parts catalog before ordering. |
|---|---|
| part_number | None |
Common Questions
What does H6-00 error mean on Daikin Air Conditioner?
H6-00 indicates a communication failure between the indoor and outdoor units, leading to compressor malfunction.
Can I fix Daikin Air Conditioner H6-00 error myself?
Yes, you can try power cycling the unit. Turn it off, wait 1-2 minutes, then restart.
How much does it cost to fix H6-00 error?
Repair costs for H6-00 can range from ¥15,000 to ¥80,000, based on parts and labor required.
When should I call a technician for H6-00?
Call a technician if H6 reappears after power cycling or if you notice unusual noises or smells.
Sources & References
- Daikin Error Code Search (general tool) (official)
Data last verified: 2026-07-31
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