Hitachi RC-AGU1EA0G Manual page 20

How to Reset Filter Sign on the indoor unit
Filter Sign on the indoor unit will show with "
and 4 seconds off. Because cleaning of Air filter has not been done for a long time.
Clean the Air filter.
Press Filter Button at Off Mode pointing the remote controller towards the indoor unit
to reset Filter Sign.
"
Sign on the indoor unit will turn off.
NOTE
•
Reset Function ( For Hardware Reset)
During Battery replacement or any unlikely event, if the display does not change
on Press of key or any unwanted garbage display comes,
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.
" symbol will be visible on LCD screen for about 3 seconds and Filter
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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" lamp by blinking with 1 second on