Hitachi EP-M70E Instruction Manual page 41

Humidifying
Symptoms
 Is the water supply indicator lit?
 Is the Filter Cleaning indicator lit?
The unit does
 Is the Humidity Monitor displaying 70%?
not humidify
(the humidity
does not in-
 Is the room too large or ventilated?
crease)
 Is a heater used in the room?
 Is the airfl ow rate weak?
The humidi-
fying perfor-
mance is inad-  Is there any dust on the pre-fi lter?
equate
(Water in the
 Is the humidifying fi lter correctly set?
water tank
has not de-
 The humidifying performance varies depending
creased)
Following Conditions are Normal
Sounds and Vibrations
Symptoms
When using humidify or skin moisturize
modes, the purifi er sometimes makes whir-
ring and gargling sounds
The unit makes rattling sounds when it is
being moved
The flap makes whirring, rattling, and rumbling
noises when it is opened, closed, or in swing mode
The unit vibrates when it is on "Max" airfl ow rate.
The airflow rate frequently switches in the
middle of humidify mode and the sound is
distracting
When switching the operation mode or air-
flow rate, the purifier sometimes makes
whirring and whirling sounds
EP-M70E_EN.indd 41 EP-M70E_EN.indd 41
Check
Or is it dirty with water scales?
on the level of humidity and temperature of the
room.
Fill the tank with water.
Refer to "When the Filter Cleaning Indicator
Comes On" in "Cleaning" when cleaning the hu-
midifying fi lter.
It automatically operates according to the humid-
ity level. (P.E-21)
The humidity may not increase depending on
the size of the room, the installation location,
whether windows are open or closed, and the
state of ventilation. Use the unit in combination
with another humidifi er.
Depending on the heater used, the air in the
room may become dry, causing the humidity to
not increase. Use the unit in combination with
another humidifi er.
When the "Medium" or "Silent" airfl ow rate is se-
lected, the humidifying performance is lessened.
Set the airfl ow rate to "High" or "Max".
Refer to "Pre-fi lter" in "Cleaning" when cleaning
the pre-fi lter.
Set the humidifying fi lter correctly.
Clean or replace the humidifying fi lter if it is dirty.
(P.E-28 - E-31)
If the humidity level is high, such as on a rainy
day, or if the temperature of the room is low, the
humidifying performance decreases.
Cause (This is normal)
It is the sound of the unit pumping water from the water tank for a
few seconds every few minutes.
It is the sound of the metal ball inside the "Vibration Sensor".
It is the sound of the motor that moves the fl ap.
It is because of the rotation of the fan.
It is because the airflow rate is controlled automatically. When
the humidity changes, the airfl ow rate may switch to "High".
If it becomes a distraction, switch to your preferred airfl ow rate.
(P.E-21)
The humidifying performance will decrease when it is switched
to a weaker airfl ow rate.
This is the sound of the unit changing the rotational speed of the
motor.
Solution
(P.E-31, E-32)
(P.E-28 - E-31)
(P.E-21)
(P.E-34)
(P.E-30)
E-41
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