Heaven Fresh AquaCharger AK-900 Instruction Manual page 13

16. LCD Display and Operating Instructions
2. Notice of cleaning and auto cleaning.
Every 12 hours, the water ionizer will start a self-cleaning process in order to clean the electrodes.
Before the process starts, one of the level indicator starts blinking to tell you the ionizer is going to
clean itself. Which level indicator will blink depends on the previous level selected.
When the beeping sound stops, it means the auto-cleaning process finishes. The indicator light
will stop blinking and LCD screen will be back as normal.
3. Trouble display
The unit features adjustment system, and it is a reliable unit. It needs periodic maintenance
and cleaning.
Calcium residue display.
When "Hard Water" is used as input water, extra calcium will deposit on the electrodes. As a
result the ionizer can hardly produce effective ionized water. For example, when there is too
much calcium accumulation, the level indicator will adjust from the 4th level back to the 3rd
level. At the same time, the "Working indicator on LCD screen starts blinking. This problem is
solved by auto cleaning process.
Heaven Fresh
Purpose of self cleaning
Clean electrodes.

Remove calcium residue on electrodes if any of

the level indicators starts blinking, it is time that the
unit needs to clean itself. Under this situation, when
water comes into the unit, it starts making beeping
sound for about 40 seconds, and also the LCD
screen displays like the figure below.
13 AK-900