Remote controller displays an error code (e.g., A3) and 'Reset error'

What does Remote controller error mean?

An error code and specific unit information (e.g., Error code A3, Error unit IU) are displayed on the remote controller screen, indicating an abnormality in the Mitsubishi Electric PUMY Air Conditioner system. The screen provides an option to reset the error.

• Various system faults (refer to specific error codes for details)
• Communication issues between units or with the remote controller
• Temporary system glitch

Click steps to track your progress.

1. 1

   Note the specific error code displayed on the remote controller for future reference.

2. 2

   Press the F4 button or the [ ] button on the remote controller to select the 'Reset error' option.

3. 3

   Confirm the reset by selecting 'OK' with the F4 button if prompted.

4. 4

   If the error reappears shortly after resetting, contact your dealer or a qualified service technician, providing them with the noted error code.