LERAN AC Split-System Remote Control. Operating Instructions
Compatibility of the GZ-1002B-E3 Air Conditioner Remote Control
The remote control is compatible with:
LERAN LR Series Air Conditioners
Models:
LR 07 LR LR 01 P10
LR 09 L3 LR 09 P10
LR 12 L3 LR 12 P10
LR 18 L3
LR 24 LR
Safety Precautions
• The remote control is not a toy. Do not allow children to play with it and do not use it for play yourself.
• When operating the remote control, point its signal emitter towards the indoor unit of the air conditioner while pressing the buttons. The indoor unit will confirm receipt of the signal with a short beep.
• Signals can be received at distances of up to 8 meters in a straight line from the indoor unit at an angle of 45° to the left and right. There must be no obstacles between the remote control and the unit that could block the signal.
• The remote control should be kept at least 1 meter away from television and radio equipment.
• Do not drop the remote control or subject it to strong impacts. Protect it from direct sunlight, heat sources, water ingress, and high humidity.
• Do not use sharp objects to press the buttons to avoid damaging the remote control. Do not clean the remote control with gasoline, solvents, chemically treated wipes, or similar substances.
• If the remote control does not operate properly, remove the batteries, wait 30 seconds, and then reinstall them. If operation is not restored, replace the batteries.
(!) Remove the batteries from the remote control if it will not be used for an extended period.
(!) Note: The manufacturer reserves the right to make changes to the design, configuration, or manufacturing technology of the remote control without prior notice to the customer.
Important Note
Information, technical specifications, and parameters may be changed without prior notice due to technical modifications or improvements. Exact technical specifications are indicated on the factory label.
• To operate the remote control, point its signal emitter at the indoor unit of the air conditioner while pressing the buttons. The indoor unit will confirm receipt of the signal with a short beep.
• Signals can be received at distances of up to 8 meters in a straight line from the indoor unit at an angle of 45° to the left and right. There must be no objects between the remote control and the unit that could block the signal.
• The remote control should be kept at least 1 meter away from television and radio equipment.
• Do not drop the remote control or subject it to strong impacts. Avoid exposure to direct sunlight, do not place it near heat sources, protect it from water ingress, and avoid locations with high humidity.
• Do not use sharp objects to press the buttons, as this may damage the remote control. Do not clean the device with gasoline, solvents, chemically treated wipes, or similar substances.
• If the remote control does not function correctly, remove the batteries, wait 30 seconds, and then reinstall them. If it still does not work, replace the batteries.
(!) Remove the batteries from the remote control if you do not intend to use it for a long period.
(!) Note: The manufacturer reserves the right to make changes to the design, configuration, or manufacturing process of the remote control without prior notice to the customer.
.Designation of Remote Control Elements and Their Functions
The presented image refers to a standard remote control unit, showing all functional buttons. They may differ slightly from the buttons on your remote control unit, depending on the model.
1 ON/OFF BUTTON
Power on/off button. This button turns the unit on or off. When the 
button is pressed, the unit will start if power is supplied, or stop if it is in operation.
2 MODE BUTTON
Press this button to select the operating mode.
3 FAN SPEED BUTTON
This button is used to select the fan speed:
Automatic (
) → High (
) → Medium-high (
) → Medium (
) → Medium-low (
) → Low (
)
4/5 TEMPERATURE SETTING BUTTONS
Used to adjust the temperature, as well as the timer and time settings.
6 SMART BUTTON
Turns the SMART function on or off.
7 SUPER BUTTON
Used to enable or disable rapid heating/cooling mode.
Rapid cooling: high fan speed, 16 °C; Rapid heating: “auto” fan speed, 30 °C.
8 SWING⇅ 
Controls the vertical airflow direction. Used to enable/disable the swing of the horizontal louvers and to select the desired position.
9 SWING⇄ 
BUTTON
Controls the horizontal airflow direction. Used to enable/disable the swing of the vertical louvers and to select the desired position.
10 SLEEP BUTTON
Used to enable or disable Sleep mode.
11 TIMER ON/TIMER OFF BUTTONS
Used to set the timer for switching the unit on or off.
12 QUIET BUTTON
Used to enable or disable QUIET mode (lowest fan speed and minimum noise level). Pressing this button activates or deactivates quiet mode. Hold the button for about 5 seconds to enable or disable the IFEEL mode (maintains the set temperature around the user, near the remote control).
13 DIMMER BUTTON
Pressing this button turns off the display of the indoor unit. Press any button to turn it back on.
14 ECONOMY BUTTON
Used to enable or disable Economy mode. When activated, the air conditioner operates in reduced power consumption mode.
(!)
NOTE
If the remote control is exposed to heat sources, press and hold the “QUIET” button for about 5 seconds to disable IFEEL mode and switch to the sensor built into the indoor unit. The remote control transmits the temperature value to the air conditioner every 3 minutes. If no signal is transmitted for more than 10 minutes, for example, if the remote control is lost, the air conditioner switches to the built-in indoor unit sensor and maintains the room temperature. In such cases, the temperature around the remote control may differ from the air temperature near the indoor unit.
Display Indicators of the LERAN AC Remote Control
1. Cooling
2. Dehumidification
3. Ventilation
4. Heating
5. Lock
6. Battery charge
7. Automatic fan speed
8. 5th fan speed
9. 4th fan speed
10. 3rd fan speed
11. 2nd fan speed
12. 1st fan speed
13. Night mode 1
14. Night mode 2
15. Night mode 3
16. Night mode 4
17. Quiet mode
18. Smart mode
19. Economy mode
20. Turbo mode
21. Power control mode
22. Signal reception by the air conditioner
23. iFEEL mode indicator
24. Clock setting. Timer setting (ON/OFF)
25. Temperature setting
Battery Installation / Replacement
• Remove the battery compartment cover by sliding it off from the back of the remote control, pressing the special latch.
• Insert new AAA batteries, ensuring they are installed in the correct direction, so that the (+) and (–) ends are aligned properly.
• Close the battery compartment by sliding the cover back into place.
(!)
NOTE
• Replace the batteries if the LCD display of the remote control does not light up or when the remote control cannot be used to change the air conditioner settings.
• Use new LRO 3 AAA 1.5 V batteries (micro size).
• Do not use rechargeable batteries.
• Used batteries must be disposed of in accordance with the regulations of the country of use.
• If you do not use the remote control for more than one month, remove the batteries.
Rules for Using the Remote Control
- The remote control uses AAA alkaline batteries. Under normal conditions, the battery life is approximately 6 months. Please use two new batteries of the specified type, ensuring correct polarity alignment.
- The effective operating range of the remote control is approximately 8 m.
- When using the remote control, point the signal emitter towards the receiver of the split-system unit. There should be no obstacles between the remote control and the unit.
- Pressing two buttons simultaneously may cause malfunction.
- Do not use wireless equipment (such as a mobile phone) in close proximity to the split-system unit, as this may cause interference. In such cases, turn off the power, unplug the unit, and reconnect it after some time.
- If direct sunlight strikes the unit, it may not respond to the remote control signal.
- Do not drop the remote control.
- Do not place the remote control in areas exposed to direct sunlight or near a stove.
- Do not spill water or juice on the remote control; if this occurs, use a soft cloth to remove the liquid.
- Used batteries must be disposed of in accordance with the applicable laws of the country where the device is used.
Storage
You can arrange a permanent storage place for the remote control using a wall-mounted bracket.
(!) Note: The wall-mounted bracket is not included with all models.
Operating the Air Conditioner Using the Remote Control
Automatic Mode
1. When selecting the “AUTO” mode, the air conditioner automatically switches to heating or cooling depending on the difference between the room temperature and the set temperature.
2. The Sleep function is not available in “AUTO” mode.
3. In “SWEEP” (ventilation) mode, the temperature cannot be set. Only high, medium, and low fan speeds can be selected. Automatic fan speed is not adjustable.
Automatic Mode Selection Depending on Indoor Temperature
| Indoor Temperature | Operating Mode | Target Temperature |
| 21°C and below | Heating | 22°C |
| 21–23°C | Ventilation | - |
| 23–26°C | Dehumidification | Temperature decreases by 1.5°C after 3 minutes |
| Above 26°C | Cooling | 22–23°C |
Manual Mode Selection
If the automatic operation settings of the air conditioner do not meet your needs, follow the steps below to adjust the settings manually.
STEP 1 Press the MODE button to select the desired mode:
for automatic mode
for heating mode
for dehumidification mode
for cooling mode
for ventilation mode
STEP 2 To start the air conditioner, press the ON/OFF button
STEP 3 Use the TEMP▲ and TEMP▼ buttons to set the desired temperature within the range of 16–30°C
STEP 4 Use the FAN button to set the desired fan speed
If the fan speed is set to automatic, the fan will operate depending on the difference between the room temperature and the set temperature.
STEP 5 Press the or button to set the desired airflow direction.
To turn off the air conditioner, press the ON/OFF button again
• When the air conditioner is operating in heating mode, the temperature can be set manually using the remote control. The maximum value is 30°C.
• When operating in cooling mode, the temperature is also set manually; the minimum value is 16°C.
• When the dehumidification function is selected, the air conditioner removes moisture from the air, converting it into condensate and discharging it outside. The room temperature will also decrease.
• When the automatic mode (AUTO) is selected, the air conditioner operates automatically depending on the difference between the indoor temperature and the set temperature.
.OPERATING MODES AND FUNCTIONS OF THE AIR CONDITIONER
Cooling Mode (COOL)
The cooling function allows the air conditioner to lower the room temperature while simultaneously reducing air humidity.
To activate the cooling function (COOL), press the MODE button until the corresponding icon appears on the remote control display.
Activate the cooling cycle by pressing the TEMP▲ “Up” or TEMP▼ “Down” button to set a temperature lower than the current room temperature.
Heating Mode (HEAT)
The heating function enables the air conditioner to produce warm air.
To activate the heating function (HEAT), press the MODE button until the corresponding icon appears on the remote control display.
Using the TEMP▲ “Up” or TEMP▼ “Down” button, set the temperature higher than the current room temperature.
Ventilation Mode (FAN)
With this function, the air conditioner operates only in ventilation mode, without cooling the air.
To select the FAN mode, press the MODE button until the corresponding icon appears on the remote control display. By pressing the “FAN” button, you can adjust the fan speed.
Dehumidification Mode (DRY)
This function reduces air humidity to make the indoor environment more comfortable.
To select the DRY mode, press the MODE button until the corresponding icon appears on the remote control display.
In dehumidification mode, depending on the difference between the room temperature and the set temperature, the air conditioner will start or stop cooling, and the fan speed will automatically decrease to reduce indoor humidity.
Turbo Mode (SUPER) 
In this mode, the air conditioner cools the air more intensively than in normal mode, allowing rapid creation of comfortable conditions during the hot season. The air conditioner sets the cooling temperature to +16°C.
To enable Turbo mode, press the SUPER button on the remote control. To cancel Turbo mode, press the SUPER button again.
(!)
NOTE
• At low outdoor temperatures, frost may form on the heat exchanger of the outdoor unit. In this case, the defrost mode will be activated, and the indoor unit fan will stop (in some models, it will rotate at low speed). After a few minutes, the air conditioner will resume heating mode operation (this interval may vary slightly depending on the outdoor temperature).
• When entering heating mode, the indoor unit fan turns on after the heat exchanger is sufficiently warmed up, preventing cold air from being supplied to the room.
• When power supply is interrupted, the air conditioner turns off. Upon restoration of power, it will automatically restart after three minutes.
• In cooling or heating mode, the plastic parts of the air conditioner may expand or contract due to sudden temperature changes, producing clicking sounds. This is normal.
• The remote control regularly transmits the temperature value to the indoor unit every 3 minutes. If no signal is transmitted for more than 10 minutes (e.g., if the remote control is lost), the air conditioner switches to the sensor built into the indoor unit and maintains the room temperature. In such cases, the temperature around the remote control may differ from the air temperature near the indoor unit.
Sleep Mode 
Night mode operation. Sleep mode is used to maintain comfortable conditions and save electricity during nighttime.
To select Sleep mode, press the SLEEP button on the remote control; the 
icon will appear, indicating that the air conditioner is operating in Sleep mode.
Each press of the Sleep button cycles through the sleep modes in sequence:
| Mode | Cooling Mode | Heating Mode |
| The air conditioner increases the set temperature by 2°C. After 2 hours, the temperature becomes constant. | The air conditioner decreases the set temperature by 2°C. After 2 hours, the temperature becomes constant. |
 | The air conditioner increases the set temperature by 2°C. After 2 hours, the temperature becomes constant. After 6 hours, the temperature decreases by 1°C and decreases by another 1°C after 7 hours. | The air conditioner decreases the set temperature by 2°C. After 2 hours, the temperature becomes constant. After 6 hours, the temperature increases by 1°C and increases by another 1°C after 7 hours. |
| The air conditioner increases the set temperature by 1°C. After 2 hours, the temperature becomes constant. After 6 hours, the temperature decreases by 1°C and decreases by another 1°C after 7 hours. | The air conditioner decreases the set temperature by 1°C. After 2 hours, the temperature becomes constant. After 6 hours, the temperature decreases by 1°C and decreases by another 1°C after 7 hours. |
 | The set temperature remains unchanged. | The set temperature remains unchanged. |
After 8 hours, Sleep mode turns off automatically. To cancel this function, simply press the SUPER, SMART, MODE, FAN SPEED button, or press the SLEEP button four times.
iFEEL Mode
The air conditioner is equipped with a high-precision function for maintaining the set temperature near the user. The sensor system in the indoor unit and the remote control detects the user’s proximity to the remote control and automatically adjusts operation based on the set parameters and sensor data.
To enable or disable this function, press and hold the “QUIET” button for 5 seconds.
Automatic Operation Mode (SMART Mode)
When the SMART button is pressed, the air conditioner will switch to automatic mode regardless of whether it is on or off. In this mode, the temperature and fan speed are set automatically based on the current room temperature. The device also automatically adjusts the airflow direction when operating in Smart mode.
1. Manual Device Control
a. If the temperature exceeds 26°C, the device will operate in cooling mode until the temperature drops to 26°C.
b. If the temperature is above 23°C but below 26°C, the device will operate in dehumidification mode (the air conditioner will switch to automatic mode after 3 minutes of operation at low fan speed).
c. If the temperature exceeds 21°C but is below 23°C, the device will operate only in ventilation mode with weak airflow; fan speed can be adjusted.
d. If the room temperature is 21°C or lower, the device will operate in heating mode with a target temperature of 22°C.
2. Cooling-Only Operation (Heating Function Not Available)
a. If the room temperature exceeds 26°C, the device will operate in cooling mode with a target temperature of 26°C.
b. When the temperature exceeds 23°C but remains below 26°C, the device will operate in dehumidification mode.
c. If the room temperature does not exceed 23°C, the device will operate only in ventilation mode with weak airflow; fan speed can be adjusted.
Once the device enters Smart mode, the set temperature may vary from 2°C to 7°C (depending on the remote control mode, with a minimum adjustment step of 1°C) in either direction according to the automatic mode settings or the pre-set temperature of the control unit.
If a specific mode is selected, the device may change it to another if the compressor has not operated for 5 minutes or if the temperature settings are changed.
.Airflow Direction Adjustment
The outgoing airflow is evenly distributed throughout the room. You can select the optimal airflow direction.
Vertical Plane (Up-Down)
The vertical airflow direction can be adjusted using the remote control.
Press the button on the remote control to select either the automatic louver swing mode or one of the fixed positions as desired. To lock the selected position, press the button again.
(!)
CAUTION!
Use the remote control button to operate the louvers. If you change the louver position manually, the set position from the remote control will not match the actual louver position. If this occurs, turn off the air conditioner, wait until the louvers close, and then turn it back on; the louver position will now correspond to the set position.
(!) Do not leave the louvers pointed downward when the air conditioner is operating in cooling mode, as this may cause condensation to form and drip.
Horizontal Plane (Left-Right)
The horizontal airflow direction can be adjusted using the remote control.
Press the button on the remote control to select either the automatic louver swing mode or one of the fixed positions as desired. To lock the selected position, press the button again.
(!)
CAUTION!
In high-humidity conditions, when the air conditioner operates in cooling or dehumidification modes, the vertical louvers should be directed forward. If the louvers are in the extreme left or right position, condensation may form and drip from the grille.
Setting the Time on the Air Conditioner
To set the time on the air conditioner, press the 
button, then use the TEMP▲ “Up” or TEMP▼ “Down” buttons to adjust the time. A single press changes the time by 1 minute, holding the button for 5 seconds changes the time by 10 minutes, and holding the button for a longer period changes the time by 1 hour.
To confirm the selected time, press the button. You will hear a beep, and after 3 seconds of flashing, the time will be shown on the remote control display.
Turning the Air Conditioner On and Off with the Timer
To set the time for the air conditioner to turn on, press the “TIMER ON” button, then use the buttons to set the desired time.
A single press changes the time by 1 minute, holding the button for 5 seconds changes the time by 10 minutes, and holding it for a longer period changes the time by 1 hour.
To confirm the selected time, press the “TIMER ON” button. You will hear a beep, and after 5 seconds of flashing, the time will be shown on the display (the “ON” indicator will light up).
To cancel this function, press the “TIMER ON” button again.
The “TIMER OFF” function is used to automatically turn off the unit at the set time. The procedure for setting the time and canceling the function is the same.
Operating the Air Conditioner Without the Remote Control
If you have lost the remote control or it is malfunctioning, follow these steps:
If the air conditioner is not operating:
• To start the air conditioner, press the emergency start button on the indoor unit (first carefully lift the front panel).
If the air conditioner is operating:
• To turn off the air conditioner, press the emergency stop button on the indoor unit.
(!)
Note:
Do not hold the buttons pressed for an extended period, as this may cause the air conditioner to malfunction.
Related articles:
GZ-1002B-E3 Air Conditioner Compatibility
Air Conditioners: Main Functions and Modes
TIMER Function in Air Conditioners
TIMER
SLEEP Night Mode
TURBO Mode in Household Air Conditioners
SWING Function
AUTO Mode
User manuals for climate control remote controls |