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3-second press
Lock
Unlock
3-second press
16
English
Lock function
Use this function to lock all buttons to prevent the buttons from
being pressed by mistake or by children during operation of the
device.
• To lock all buttons, press and hold the [ ] button for more
than 3 seconds. A chime sound is played, the 'lock' icon is
are locked.
• When the Lock function is on, all buttons are disabled and
cannot be selected.
Turning off the function
• Press and hold the [ ] button for more than 3 seconds.
A 'ding' sound is played, the 'unlock' icon is shown on the front
Filter replacement reminder
This function informs you when you need to replace the
• If an audible alarm is played and 'Filter Reset needed' appears on the
turn on the device and then press and hold the [ ] button for more
not want to reset, press the [ ] button. If you press the [ ] button,
'Filter is reset' appears on the display.
•
holding the [
have been replaced for any reason although the front display did not
display 'Filter Reset needed'.
CAUTION
•
reminder may not work properly.
NOTE
• When the filters need to be replaced, 'Filter Reset needed' is shown
] button. If you do
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