Hitachi EP-A7000 instruction manual Alert Display, Troubleshooting Guide

Page 25
P.E-22
P.E-22
P.E-15
P.E-21

Alert Display

Symptom

 

Cause

All airflow indicators

are blinking.

Faulty fan rotation.

Stop the operation, unplug the power cord from AC outlet and contact your dealer for service.

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

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.

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 or dust?

Is odor sensor hole blocked by dust or other obstacle?

Is the dust sensor covered with dust?

Is odor sensor hole blocked by dust or other obstacle?

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. P.E-23

Insert the batteries with correct

 

polarities.

P.E-9

Replace the batteries.

P.E-9

Clean the remote infrared receiver.

P.E-22

 

Press the airflow button and select Auto

Sensor or other airflow rate. P.E-11,E-14

Airflow rate will not decrease when humidity is low.

Change the sensor sensitivity

setting.P.E-16

Press the airflow button and select Auto

Sensor or other airflow rate. P.E-11-E-14

Clean the odor sensor.

P.E-22

Change the sensor sensitivity

setting.P.E-16

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.

Clean the dust sensor.

Clean the odor sensor.

Filter Replacement Alert Display Troubleshooting Guide

E-25

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Contents EP-A7000 Features / Name of Each Component / Accessories Operation Buttons and Indicators Meanings of Symbols Safety PrecautionsDefinition of each indication Water Tank, Water Tray and Humidifying Filter To Prevent Floor Scratches or Wall Stains Do not directly fan animals and plants Do not subject remote controller to impactDo not run with filter detached Do not subject water tank to impactInstall the dust filter on the unit Install the Deodorizing filterReinstall the panel on the unit Preparations for OperationInsert batteries and close the cover Inserting Batteries into Remote ControllerGently remove the water tank Set the water tank into the water tank holderAir Purify mode indicator is lit in green InstallationRemote controller operation is accepted even in this state Green Installation Using Remote ControllerPollen OrangeAirflow level indicator comes on Using Remote ControllerAirflow rate changes in the following sequence Silent Medium High Blinking MaxOperation with Max airflow Off-timer 4 hours is setWill continue for about 5 minutes Operation will stop approxMemory Function Using the Control on PurifierAir Sensor Odor SensorHumidity Sensor Dust sensorAuto Detection Sensor sensitivity can be adjusted in 3-step fashion Each operation modeFactory setting is Medium Press buttonIndicators are dimmed Useful FeatureEvery time you press button, Set and Cancel will alternate When the Clean Humidifying Filter Indicator Comes On CleaningHumidifying Filter Guide for cleaning Once a month Water Tank Guide for cleaning DailyCleaning Replacing Humidifying Filter Water Tray / Tray Cover Guide for cleaning Once a monthDo not dispose of the humidifying filter case Wipe off water and assembleClean the pre-filter Pre-filterGuide for cleaning Once a monthRemove the panel. P.E-8 Remove the pre-filter Reattach the pre-filterDust sensor Cleaning guide every 3-6 months Purifier Body Guide for cleaning Once a monthReplacement Interval Filter ReplacementPrecautions on Filter Handling Remove the panel and the pre-filter Remove the used filter Replacing the FilterUse a genuine filter for the Hitachi Air Purifier It may also be a cause of malfunctionAlert Display Troubleshooting GuideClean Humidifying Filter indicator does not go off Water leaks Indicator is dimIs there anything nearby that the odor sensor might sense? Following Conditions Are Normal Deodorizing filter 10kg Length of power cord Approx .8mApplicable floor space 50m
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