Daikin Air Conditioner Error H8-00

⚡ Quick Answer: The Daikin Air Conditioner error H8-00 signals a communication failure between the indoor and outdoor units, commonly caused by a malfunctioning DC cu... ✅ DIY Fixable

What Does Error H8-00 Mean?

The Daikin Air Conditioner error H8-00 signals a communication failure between the indoor and outdoor units, commonly caused by a malfunctioning DC current sensor. Symptoms may include the unit shutting down shortly after startup, unresponsive remote control commands, and blinking display lights. This issue can prevent the air conditioner from cooling effectively, necessitating prompt attention.

Common Symptoms:

  • Air conditioner may stop operating or shut down shortly after startup.
  • Unit may fail to respond to remote control commands.
  • Displayed system temperature or settings may not change as expected.
  • Continuous blinking lights or repeated error code display.

Possible Causes

  • DC current sensor malfunction (medium)

How to Fix Error H8-00

DIY Fix Power cycle and basic check

  1. Turn off the unit using the remote controller or unit power button.
  2. Disconnect the air conditioner from the power source for 5–10 minutes to allow internal electronics to reset.
  3. Reconnect power and restart the unit to see if the code clears.

Technician Only Inspect and test DC current sensor and associated electronics

  1. Access the unit’s control board and inspect the DC current sensor and wiring harness for damage or loose connections.
  2. Use diagnostic equipment to measure current sensor output and verify correct electrical behavior.
  3. If sensor is faulty, replace with manufacturer-approved DC current sensor component.
  4. Check related power electronics (inverter board/transistors) if sensor replacement alone does not resolve fault.

Parts needed: DC current sensor, Control PCB or inverter board components, Wiring harness/connectors

🛑 When to Call a Pro:
  • If the error reappears after power cycling.
  • If the unit makes unusual noises, fails to start cooling/heating, or shows additional codes.
  • If internal component inspection or repair is needed.

Technical Specifications

wattage N/A
component Communication Cable
resistance N/A
part_number DAIKIN 937202A
voltage_rating 230V AC

Common Questions

What does H8-00 error mean on Daikin Air Conditioner?

H8-00 indicates a communication failure between the indoor and outdoor units, often due to a DC current sensor malfunction.

Can I fix Daikin Air Conditioner H8-00 error myself?

Yes, you can try power cycling the unit by disconnecting it for 5-10 minutes to reset it.

How much does it cost to fix H8-00 error?

Repair costs for the H8-00 error typically range from ¥15,000 to ¥60,000, depending on the region and model.

When should I call a technician for H8-00?

Call a technician if the error persists after power cycling, if you hear unusual noises, or if internal component inspection is needed.

Sources & References

Data last verified: 2026-07-01

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