Hitachi R-WB640V0MSX Instruction Manual page 26

Troubleshooting
This is not a malfunction of the refrigerator:
Problem
Annoying sound is generated
by the refrigerator.
Operation sound lasts long.
Operation sound sometimes
becomes louder.
There is something strange with the Vacuum Compartment.
Problem
In case of occurred these event,
Vacuum Compartment might not
be operate.
・・・
It is not known whether it is in
the vacuum state or not.
The Handle cannot be locked.
There is shaking "Bu Bu"
sound from around
Vacuum Compartment.
There are dews or water
around the door or
inside Vacuum Compartment.
Things stored in Vacuum
Compartment are frozen.
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Things to check
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Things to check
Is the Handle up?
●
Has the Handle been pushed down to the
●
end?
● Are Vacuum Compartment gasket and
Packing receiver dirty?
Is Vacuum Compartment gasket or Vacuum
●
valve (blue) detached or loose?
Vacuum valve
(blue)
Is there any bag that contains food or stain
●
debris, trash in or around Vacuum
Compartment gasket and Packing receiver?
Thread
Trash
Is the gaskets adhered together, gently
●
stretch it part before using
the Vacuum Compartment?
Has the Vacuum Compartment or R door
●
been opened/closed?
If the is the "Whoosh..."sound during the
●
opening, it is normal.
Is there anything stored in the gasket or
●
the inmost side of the
Vacuum Compartment?
● The sound of Pump creating the vacuum
state.
● If the sound or the shaking happens often,
there may be something at the door or the
gasket may be dirty.
Water in food and air can cause diets
●
inside because Vacuum Compartment is
completely closed.
●
Is there any vegetable that is vulnerable to
low temperature such as cucumber or
tomato inside?
● You may feel that the operation sound is loud because the
compressor operates in high-speed under the
following conditions: the refrigerator does not cool fully
on the occasion such as using it for the first time,
opening/closing the door frequently, the surrounding
temperature is high.
The sound becomes more quiet after cooling fully.
The compressor operates at low speed at night, or during
long vacations or absence.
●
It is because the compressor operates in low-speed for
conserving energy
● It is because the system changes the operating power of
he refrigerator according to the temperature change.
● Push Handle down to the proper position.
● If not, there is no vacuum. Push the Vacuum Box Case
inside to the end and push the handle down to the proper
position.
● If they are, clean them by wiping the stain out.
● Deliberately attach Vacuum
vacuum valve.
If there is any plastic bag that contains things inside,
●
remove it. If the gasket are attached to each other,
the Vacuum property will be lost.
If the sides of gasket stick to each other, put them apart.
●
If gasket is dirty, clean it.
Adhering
Gasket
Since the Vacuum Pump is in the status of readiness for
●
work, the absence of the "Whoosh..." sound is not
unusual.
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If there is, remove that thing.
●
● There is nothing wrong.
● If there is plastic bag, remove it and clean the dirty.
Anything that contains a lot of water should be wrapped
●
or covered. If there are dews or water, wipe them with a
piece of cloth soaked in warm water.
Check the vegetables that are vulnerable to low
●
temperature and move them to vegetable compartment.
Instructions
Instructions
Compartment
gasket and
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