Hitachi hitachi air purifier with humidifying function Troubleshooting Guide, Check to see, E-23

P.E-18

P.E-11

P.E-21

P.E-9

P.E-14

P.E-21

P.E-14

P.E-11-E-13

Troubleshooting Guide

Before asking for repair check the following once again

Symptom

No air blows out or power does not turn on

Smoke or smell is not efficiently removed, or there is an odor

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?

Solution

Securely insert the power plug into AC outlet.

Switch on breaker.

Clean the pre-filter, referring to the “Pre-

filter” in “Cleaning”.

P.E-20

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. P.E-21

Insert the batteries with correct

polarities. P.E-8

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

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?

Replace the batteries.	P.E-8
Clean the remote infrared receiver.	P.E-21

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. P.E-15

Press the airflow button and select auto or

other airflow rate.	P.E-11-E-13
Clean the odor sensor.		P.E-21
Change the sensor sensitivity setting.		P.E-15

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”.

Alert Display Troubleshooting Guide

E-23