Hitachi EP-A8000 Instruction Manual page 31

Following Conditions Are Normal
Noise/vibration
Snapping noise sounds when plugging power
cord into the AC outlet.
Unit vibrates during the "Max" operation.
Bubbling noise
Clicking noise sounds during operation.
Heat/odor
The wind coming out of the outlet smells.
The remote control or the remote control
receiving part is warm.
Operation/other
No vapor or mist visible
Humidity level indication differs from
hygrometer reading.
Shutter is stopped midway.
Water surface in the water tank waves.
Unit indicators repeatedly turn on and off one
after another, and the fan is stationary.
Pressing the eco button operates the ionization
setting / release of the other Hitachi air purifier
with ionizing function.
Pressing the ionizing button on the remote
controller for the other Hitachi air purifier with
ionizing function operates the setting / release
of eco operation.
Symptom
Symptom
Symptom
Cause
It is because electric components are energized
when power is supplied. This is normal.
Vibration is caused by fan rotation. This
is normal.
The noise is produced by air bubbles when water in the
water tank is supplied to the water tray. This is normal.
This is a switching sound of the shutter.
This is normal.
Cause
When first using, the odor of the parts inside
the body may be noticeable. Otherwise,
the deodorization performance of the filter
has declined.
P.E-27
Or, odor may have contaminated the
humidifying filter. Clean the humidifying filter.
P.E-22-E-24
The control substrate is built into the body.
Therefore, the remote control or remote
control receiving area may get warm.
Cause
As the unit employs an evaporation system that produces
moisturized air by passing an air stream through the
humidifying filter, no vapor or mist is visible. This is normal.
Humidity level is indicated as a guide only. Also,
differences in the environment in different parts
of the room may cause different indications.
Performance is not affected even if the
shutter is not fully opened. This is normal.
This is caused by vibration during
operation. This is normal.
The unit is in demo mode. Unplug the
power cord once, wait for a few seconds,
and then insert the power plug into the
AC outlet.
Because the signals from the remote
controllers are the same, both functions
respond. This is normal.
E-31