Tiger PDU-A30U User Manual Download

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Cleaning

How to remove mineral deposit with citric acid

When washing the inner container with
citric acid, be sure to follow the directions
below, this is to avoid hot water spills or
scalds.

• Do not fill with hot water. Be sure to wash

with cold water.

• Do not fill with water above the full water

level.

• Do not open the lid during cleaning cycle.
• Be aware of hot steam during cleaning cycle.

Caution

※

Other functions are not available during cleaning cycle.

Citric acid can be purchased by contacting the Tiger
product retailer where the heater was purchased,
specifying product number PKS-0120 "citric acid (approx.
1.06oz / 30g x 4 packs) for cleaning the inner container of
the electric heater".

※

Citric Acid is used as natural food preservative. It is not
harmful to your health.

■

< 90 minutes citric acid cleaning using

QUICK function > For soft water

(The guideline is once every 2-3 months)

❶

Be sure that the mesh filter is set in the inner container.

❷

Fill with cold water into the water heater up to the full
water level capacity mark.

❸

Add 1 package of PKS-0120 (1.06oz / 30g / 2-3
tablespoons) citric acid powder into the water heater
and mix a little.

❹

Close the lid and plug in
and keep pressing the

Temp.Set key and the

Re-Boil / Timer key at

the same time for about
3 seconds.

Washing will start. While the unit is being washed, the
boiling lamp and the warmer lamp will alternately flash,
notifying that washing is underway with the display panel
changing as shown below. It will then switch to display
the remaining washing time.
(Cleaning Time: 1 hour and 30 min)

※

cleaning hour may vary depending in the water temperature.

Alternately

Flashing

❺

When washing is finished, the boiling lamp and the

warmer lamp will
illuminate.
The display panel
will indicate as
follows:

❻ Discard all of the hot water (citric acid water) using

Dispense lever through the spout.

❼

Unplug and discard the hot water. If stains remain,

scrub with a sponge and rinse well with water.

※

If mineral deposit is still attached on the wall of inner
container, repeat the cleaning process.

❽

To rinse remaining citric acid, refill with clean water

and bring up to boil. Then discard half of water using
Dispense lever, open the lid discard rest of water.

If you like to stop cleaning cycle, unplug
the power cord. Be sure to discard citric
acid water before using it again.

Caution

■

< 8 hours citric acid cleaning using 208

temperature setting > For hard water

Do not use the Quick cleaning function.
(The guideline is once every 15-30 days)

❶

Be sure that the mesh filter is set in the inner container.

❷

Fill with cold water into the water heater up to the full
water level capacity mark.

❸

Add 1 package of PKS-0120 (1.06oz / 30g / 2-3
tablespoons) citric acid powder into the water heater
and mix a little.

❹

Close the lid and plug in and select 208 temperature
setting.

❺

Leave it at least 8 hours or overnight.

❻

Press the Dispense lever and have 1 / 3 of the water
be discarded from the spout.

❼

Unplug the water heater and remove the top lid to toss
the remainder of the water. (See p. 8 diagram for the
discarding location of hot water)

Note: Please use necessary caution when disposing hot water, it
might cause burns or to scald.

❽

Rinse off the inner container then wipe off any residue
by using a soft sponge / cloth / paper towel. Assert
caution when wiping the inner container as it is hot;
allow it to cool down a little.

Note: If mineral build up persists, repeat the process.

❾

To remove the smell of citric acid, boil only water as

usual and dispense approximately half of the hot water
through the spout and discard the rest of the water.

If not using for a prolonged period

❶

Clean each part in accordance with the directions on

p. 16, and wipe with a dry cloth.

❷

Dry each part. (The inside container must particularly

be thoroughly dried.)

❸