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Troubleshooting

Troubleshooting

Before calling a service supplier,
please check the following possible causes/solutions.
Possible cause
If... Solution
White or glittering
flakes floating in
the hot water.
●
The cause of this is “scale”. (See P.20)
It is not flakes of fluororesin.
*
Water with a large content of minerals
in it such as mineral water or ionised
water, is more likely to cause a scale
or white layer in the hot water.
● When “scale” has adhered, boiling
sounds become louder.
Boiling sounds
become louder.
●
Odors of chlorine remain depending on
the amount of chlorine in tap water.
Hot water has
odors of chlorine.
●
When the unit is new, resin used in the manufacturing may give off a
mild odor. This will disappear with use.
●
If the unit is placed on surfaces such as a vinyl sheet, the odor may be
carried over into the water.
Hot water has an
unpleasant odor.
●
Water has been added above maximum
water level.
Hot water comes
out by itself. ●
Lower the water level.
● The mesh filter may be clogged with
“scale”. (See P.20)
Hot water does not
flow out smoothly.
●
Clean the filter with a brush.
●
I
f the “scale” cannot be removed,
replace the filter. (See P.23)
●
The automatic lock has been engaged.
Hot water does
not dispense. ●
Press the “Lock/Unlock” key.
●
Clean the inner container
with a wet sponge.
(See P.20)
●
If the “scale” still remains,
clean with citric acid.
(See P.21)
●
Press the “Long Boil/Reboil” key
to reduce the chlorine. (See P.16)
Lamp blinks while buzzer
sounds
(Power supply stops)
beep beep
beep beep
Blinks
alternatively
No-water boiling prevention
function
● To prevent failure by over-
heating, this is activated
when no water remains.
● Is water filled higher than
water supply level ?
● Is lid left open when water
is filled ?
VIP Keep-warm
● It may light on:
● when hot water is added.
● depending on filling
method of water.
● Is citric acid settled at the
bottom of container while
citric acid washing ?
● Fill the water higher than
water supply level, close
the lid and press .
● Press .
●
Once plug is disconnected,
mix with chopsticks and
wash after citric acid is
distributed. (See P.21)
If boiled empty, odor is caused or the color of fluorine resin changes.
NC-HU401_301-EN-6.indd 22 11/12/08 2:35:58 PM