Hitachi air Home RC-AGU1EA0S Manual page 17

How to Reset Filter Sign on the indoor unit
Filter sign
cleaning of Air fi lter has not been done for a long time. Clean the Air fi lter.
Press Filter button at Off Mode pointing the remote controller towards the indoor
unit to reset Filter Sign.
"
on the indoor unit will turn off.
●
Reset Function (For Hardware Reset)
During batteries replacement or any unlikely event, if the display does not change
during any button press, or there is display issue, press Reset button to reset your
remote controller hardware.
In order to reset remote controller hardware, press and release Reset button, the
display will be as shown for 2 seconds then it will change to default mode screen.
●
●
on the indoor unit will blink with 1s On and 4s OFF. Because
" symbol will be visible on LCD screen for about 3 seconds and Filter Sign
NOTE
Filter button is active in OFF mode only.
NOTE
Use some pointed item like pen to press the reset key.
Once the remote controller is reset, all setting will reset except some special
function activated by user.
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