MHI · Air Conditioning
The indoor unit emits a single 'Pip' buzzer sound. This sound indicates that the air conditioner has been turned off by pressing the ON/OFF button on the remote control.
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This is a normal confirmation sound, no fix is required.
If the unit turned off unexpectedly, check the remote control for accidental button presses.
To turn the unit back on, press the ON/OFF button again.