Troubleshoot error code “E3” in Giatsu air-conditioning

  • Error: “E3”
  • Description: Voltage failure.
  • Cause: Issues with electrical connection or internal components.
  • Solution: Verify electrical connection and components such as the board and motor.

When your Giatsu air conditioner displays the E3 error code, it’s natural to feel concerned. However, here at, I’ll guide you step by step to understand what this code means and how you can address this issue.

What Does the E3 Error Code Mean?

The E3 error code in Giatsu air conditioners indicates a problem related to voltage. This could be due to an improper electrical connection or failures in internal components such as the electronic board or fan motor.

Steps to Resolve the E3 Error

Checking the Electrical Connection

  1. Review the Power Supply:
    • Ensure that the air conditioner is correctly connected to the power source and there are no power outages or issues with the plug.
  2. Inspect Fuses and the Switch:
    • Check that the fuses in your home are in good condition and that the air conditioner switch has not tripped.

Inspection of Internal Components

  1. Electronic Board:
    • The electronic board is the brain of the air conditioner. A failure in it could cause the E3 error. If you lack knowledge of electronics, it’s better to contact a technician.
  2. Fan Motor:
    • A faulty motor could be the cause of the problem. Listen to check if the fan operates correctly or if there are unusual noises indicating a malfunction.

Air Conditioner Reset

  1. Disconnect the Air Conditioner:
    • Turn off and disconnect the equipment from the power source.
  2. Wait for a Few Minutes:
    • Leave the equipment disconnected for at least 5 minutes.
  3. Reconnect and Turn On:
    • Reconnect the air conditioner and turn it on to see if the E3 error has been resolved.

Consultation with a Professional

If after performing these checks the E3 error code persists, you probably need the assistance of a specialized technician. Internal components of the air conditioner require a more detailed diagnosis and repair that should be performed by a professional.

Additional Tips

  • Preventive Maintenance:
    • Regular maintenance can prevent the occurrence of errors like E3.
  • Filter Cleaning:
    • Although not directly related to the E3 error, keeping the filters clean will aid the proper functioning of your air conditioner.
  • Avoid Overloads:
    • Do not connect too many devices to the same power source to prevent overloads that could affect your air conditioner.

The E3 error code in your Giatsu air conditioner is not the end of the world. By following these steps, you can identify and, in many cases, resolve the issue yourself. Remember that prevention through proper maintenance is key to avoiding future errors. If the problem persists, don’t hesitate to contact a qualified technician for assistance.

At, we’re here to help with any questions or issues you have with your appliances. Don’t let an error take away your comfort!

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