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Troubleshooting Guide - Hitachi EP-A5000 Instruction Manual

Air purifier with humidifying function
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Troubleshooting Guide

Before asking for repair
Symptom
No air blows out
or power does
not turn on
Smoke or smell
is not efficiently
removed, or
there is an odor
No remote
operation
Airflow rate
does not
decrease even
though the air is
clean
Airflow rate
does not
increase even
though the air is
contaminated
"Air Sensor" indicator
is kept constantly lit
in green
"Air Sensor"
indicator is
kept blinking in
green.
No humidifying
effect
check the following once again
Check to see
Is power plug securely inserted
into AC outlet?
Is breaker switched off?
Is the pre-filter dirty?
Is the filter dirty?
Are polarities of batteries
correct?
Are batteries dead?
Is the remote infrared receiver
dirty?
Is airflow rate switched?
Is the operation in the
"Humidify" mode?
Is sensor sensitivity high?
Is airflow rate switched?
Is odor sensor hole blocked by
dust or other obstacle?
Is sensor sensitivity low?
Was the ambient air clean when
the purifier power cord was
plugged into AC outlet?
Is the purifier installed in a place
out of reach of odor?
Is odor sensor hole blocked by
dust or other obstacle?
Is there anything nearby that the
odor sensor might sense?
Any appliance generating combustion gas
Alcohol, cosmetics, sprays, etc.
Is odor sensor hole blocked by
dust or other obstacle?
Is there water in the water tank?
Is the operation in any of the "Air Purify",
"Pollen" or "Strong Deodorization" mode?
Is the humidifying filter dirty?
Solution
Securely insert the power plug into AC
outlet.
Switch on breaker.
Clean the pre-filter, referring to the "Pre-
filter" in "Cleaning".
Replace the filter, referring to the "Filter
Replacement". The filter may need to be
replaced sooner depending on the place of
installation and conditions of use.
Insert the batteries with correct
polarities.
Replace the batteries.
Clean the remote infrared receiver.
Press the airflow button and select auto or
other airflow rate.
Airflow rate will not decrease when humidity
is low.
Change the sensor sensitivity setting.
Press the airflow button and select auto or
other airflow rate.
Clean the odor sensor.
Change the sensor sensitivity setting.
Change the airflow rate. Or open a window
and plug the power cord into AC outlet
when ambient air is clean.
Relocate the air purifier.
Clean the odor sensor.
Purifier may sense invisible gas component
that cannot be cleaned by filter and
continue operation. Ventilate the room by
opening window, etc.
Clean the odor sensor.
Fill the water tank with water.
Change the operation mode to the "Humidify"
or "Skin Moisturize" mode.
Clean or replace the humidifying filter,
referring to the "Humidifying Filter" in
"Cleaning".
P.E-20
P.E-21
P.E-8
P.E-8
P.E-21
P.E-11-E-13
P.E-15
P.E-11-E-13
P.E-21
P.E-15
P.E-14
P.E-21
P.E-14
P.E-21
P.E-9
P.E-11
P.E-18
E-23

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