Panasonic TK-CB430 Operating Instructions Manual page 15

The cartridge level indicates the water volume or usage time.
<E.g. PP Cartridge>
Level 5 ...... 75 % ≦ cartridge life ≦ 100 %
Level 4 ...... 50 % ≦ cartridge life ＜ 75 %
Level 3 ...... 25 % ≦ cartridge life ＜ 50 %
Level 2 ...... 5 % ≦ cartridge life ＜ 25 %
Level 1 ...... " " flashes at 0 % ＜ cartridge life ＜ 5 %.
Level 0 ...... " " flashes at cartridge life 0 %.
When the Cartridge Life level 2 is displayed
The replacement time is approaching.
Please prepare a new cartridge.
When the indicator of "Notice to replace" is flashing
Please replace.
If there is unpleasant smell or taste, replace the
O
cartridge even if the the indicator of "
flashing.
(The purified water ability is reduced.)
When the level of cartridge life is displayed as 1
O
or less (cartridge life is less than 5 %) while
discharging purified water, the buzzer will sound
once every 6 seconds to remind users to replace
the cartridge.
About the Cartridge Life Display
" is not
Pi
Flash
EN15