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How do I reset my Hitachi AC filter light?

A white light on your Hitachi AC indicates that the unit is running in auto-clean mode, and it will take a few minutes to turn off by itself. If it does not turn off by itself, you can turn it off manually by way of the following process. Put your AC on Standby mode and press the filter key. Leave it until the AC shuts automatically. Once it shuts, press the filter key again to switch off the light.

A red light indicates that it's time to clean your filter. Clean the filter, then press the filter button to turn it off.

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