20
Symptom
Point to check
Action to take
Page to
check
y
Nothing happens
when a key is
pressed.
→
Is the plug connected to an
outlet?
→
Connect the plug to an outlet.
→
14
→
Has the lock bar been turned to
the correct position?
→
Turn the lock bar to the position
where it is perfectly horizontal.
→
14
y
The lock bar does
not turn.
→
Is the cylinder unit installed in the
main unit correctly?
→
Correctly install the cylinder unit
onto the main unit. The lock bar
will not move if the cylinder unit is
not installed in the main unit.
→
14
y
Hot water is not
poured into the
lower cylinder.
→
Is water in the upper cylinder?
→
Add water to the upper cylinder.
→
13
→
Is the upper cylinder installed
correctly?
→
Install the upper cylinder
correctly.
→
10
y
Coffee is not
extracted into the
upper cylinder.
→
Is the upper cylinder gasket
installed correctly?
→
Install the upper cylinder gasket
correctly.
→
17
→
Is the lid attached correctly?
→
Securely attach the lid.
→
13
→
Are you using superfine coffee grounds?
→
Use medium-fine or larger coffee grounds.
→
—
y
Hot water or coffee
overflows from the
tray.
→
Has the tray been left with hot water
or something similar inside it?
→
Use the appliance with nothing
inside the tray.
→
—
→
Is the mug or similar cup not
under the spout?
→
Place the mug or similar cup
under the spout.
→
15
y
Coffee overflows from the
upper or lower cylinder.
→
Has too much water been added
to the upper cylinder?
→
Do not add water to the upper
cylinder past its two cup scale line.
→
13
y
Extraction stops
before completion.
→
Has water been added to the
upper cylinder?
→
Add water at least up to the one
cup scale line on the upper cylinder.
→
13
→
The path inside the main unit
may be clogged with mineral
components.
→
Use citric acid to remove mineral
components from the path inside
the main unit.
→
18
y
The amount of
coffee extracted is
low.
→
→
Are you using superfine coffee grounds?
→
Use medium-fine or larger coffee grounds.
→
—
y
Coffee is lukewarm.
→
The [DualTemp] key is designed to switch to low the temperature of the hot water
to extract partway through the process to reduce undesired flavors. Using a
warm mug or similar cup will help prevent the coffee from cooling.
→
15
y
After extraction, a
substance similar to
oil floats in the coffee
poured into the cup.
→
This is not a malfunction. A small amount of oil is extracted from the coffee
beans.
→
—
y
The appliance is
loud or vibrates
heavily during
operation.
→
This is the sound or vibration of the pump in the main unit raising the
water. It is not a malfunction.
→
—
y
There are what
appear to be
scratches (chips) on
the resin parts.
→
These traces occurred during molding and do not affect the proper
functioning of the product.
→
—
y
There is a smell of
resin.
→
Although resin or other materials may smell for the first several uses,
such odors become less noticeable with use.
→
—
Troubleshooting
Check the following before
requesting repairs.
Summary of Contents for ADS-A02U
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