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• Airflow direction control

- During any operation mode combines with e-ion operation, airflow direction follows respective operation mode.
- During e-ion individual operation, only Auto Air Swing is allowed. Even if Air Swing button is pressed, no signal is sent to air

conditioner, and no change on LCD display.

• Timer control

- When ON timer activates when unit stops, previous operation resumes without e-ion operation.
- When ON timer activates during any operation, no change and carry on current operation.
- When OFF timer activates during any operation, all operation stops.

• Indicator

- When e-ion operation starts, e-ion indicator ON.

• Remote Control Receiving Sound

• Power failure

- During e-ion individual operation, if power failure occurs, after power resumes, e-ion individual operation resumes

immediately.

- During combination operation, if power failure occurs, after power resumes, combination operation resume immediately.
- e-ion operation status is not memorized after OFF the unit. After OFF, when the operation is ON again, air conditioner

operates without e-ion operation.

• e-ion Check Mode

- To check if e-ion is malfunctioning, during e-ion operation press e-ion button for 15 seconds and release to enter e-ion Check

Mode and supplies power to the e-ion AIR PURIFYING SYSTEM.

- If abnormal discharge is detected at filter (short-circuited) due to water or dust adhesion, etc., the e-ion indicator blinks

immediately.

•

Normal Operation

→ e-ion Operation  

: Beep

•

e-ion Operation

→ Normal Operation  

: Beep

•

Stop

→ e-ion individual operation

: Beep

•

e-ion individual operation  

→ Stop

: Long Beep

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• Error Detection Control

When e-ion indicator blink, it indicates error listed below:

1. e-ion AIR PURIFYING SYSTEM PCB main connector open:

• Judgment Method
- During e-ion operation (include during Patrol operation), e-ion AIR PURIFYING SYSTEM main connector to PCB is

opened.

• Troubleshooting Methods
- Connect the connector or stop operation (include during Patrol operation) to cancel the blinking.

2. Abnormal Discharge error:

• Judgment Method
- During e-ion operation, feedback voltage is-Lo (at micro controller) is detected, it is judged abnormal discharge and stops

power supplies to the e-ion AIR PURIFYING SYSTEM.

- Abnormal discharge is caused by ionizer or filter’s high voltage power supply short-circuits due to water or dust adhesion,

and so forth.

- When abnormal discharge occurred, every 30 minutes the unit supplies power to the e-ion AIR PURIFYING SYSTEM.
- When abnormal discharge occurs for 24 times continuously, e-ion indicator blinks (not applicable for e-ion Check Mode,

where the error will shows immediately despite the 24 times counter)

• Troubleshooting Method
- Press “e-ion” button or “OFF/ON” button to stop the operation and check the e-ion AIR PURIFYING SYSTEM main

connector to PCB.

- After that, press “e-ion” button again to confirm the e-ion indicator not blinking.
- The 24 times counter will be clear after 10 minutes of normal operation or when operation stops.

• Error Reset Method
- Press “OFF/ON” button to OFF the operation.
- Press AUTO OFF/ON button at indoor unit to OFF the operation.
- OFF Timer activates.
- Press “e-ion” button during e-ion individual mode.
- Power supply reset.

3. e-ion AIR PURIFYING SYSTEM breakdown error:

• Judgment Method
- When hi-feedback voltage (at micro controller) supplied to filter during e-ion stop, e-ion AIR PURIFYING SYSTEM

breakdown error shows immediately.

- It is due to indoor PCB or filter’s high voltage power supply damage.
- Operations except e-ion continue. Both Timer indicator and e-ion indicator blink.

• Troubleshooting Method
- Press “e-ion” button or “OFF/ON” button to stop the operation.
- Change main circuit board or filter's high voltage power supply.
- When lo-feedback voltage supplied to e-ion AIR PURIFYING SYSTEM during e-ion operation, e-ion indicator and Timer

indicator stop blinking.

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• When the thermo-off temperature (temperature which compressor stops to operate) is reached during:-

- Cooling operation - the compressor stops for 3 minutes (minimum) before resume operation.
- Soft Dry operation - the compressor stops for 6 minutes (minimum) before resume operation.

• If the operation is stopped by the remote control, the compressor will not turn on within 3 minutes from the moment operation

stop, although the unit is turn on again within the period.

• This phenomenon is to balance the pressure inside the refrigerant cycle.

• The compressor will start automatically if it has stopped for 7 minutes and the intake air temperature falls between the

compressor ON temperature and compressor OFF temperature during the period.

• This phenomenon is to reduce the built up humidity inside a room.

• Once the air conditioner is turned on, the compressor will not stop within 60 seconds in a normal operation although the intake air

temperature has reached the thermo-off temperature. However, force stop by pressing the OFF/ON operation button at the
remote control is permitted.

• The reason for the compressor to force operate at minimum 60 seconds is to allow the refrigerant oil run in a full cycle and return

back to the outdoor unit.

• When the compressor, outdoor fan motor and indoor fan motor are simultaneously started, the indoor fan motor will start to

operate at 1.6 second later.

• The reason of the difference is to reduce the starting current flow.

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• To protect indoor heat exchanger from freezing and to prevent higher volume of refrigerant in liquid form return to compressor.
• This control will activate when the temperature of indoor heat exchanger falls below 2

°C continuously for more than 4 minutes

and compressor turn off.

• The current fan speed will change to freeze prevention speed after 70 seconds compressor on. The fan speed will be increased

according to the indoor pipe temperature the figure below:

• Restart control (Time Delay Safety Control) will be applied in this control if the recovery time is too short.

• If the compressor is operating continuously for 5 minutes or longer and the temperature difference between intake air and indoor

heat exchanger is 2.5

°C or less for continuous 2 minutes, compressor will stop and restart automatically.

• Time Delay Safety Control is activated before the compressor restart.

• This is to prevent compressor from rotate reversely when there is an instantaneous power failure.