Outdoor units may be different in appearance
Remote controller holder
Only use the remote controller provided with the unit.
Do not use other remote controllers. If two or more indoor units are installed in proximity to one another, an indoor unit that is not intended to be operated may respond to the remote controller.
Before operation: Insert the power supply plug into the power outlet and/or turn the breaker on.
1. Press 
to start the operation.
2. Press 
to select operation mode. Each press changes mode in the following order:
3. Press 
or 
to set the temperature.
Each press raises or lowers the temperature by 1°C.
Press 
to stop the operation.
The operation indicator lamp shows the operation state of the unit.
Lighted
Blinking
Not lighted
AUTO mode (Auto change over)The unit selects the operation mode according to the difference between the room temperature and the set temperature. During AUTO mode, the unit changes mode (COOL↔HEAT) when the room temperature is 2°C away from the set temperature for more than 15 minutes.
Note: Auto Mode is not recommended if this indoor unit is connected to a MXZ type outdoor unit. When several indoor units are operated simultaneously, the unit may not be able to switch operation mode between COOL and HEAT. In this case, the indoor unit becomes standby mode (Refer to table of Operation indicator lamp).
COOL modeEnjoy cool air at your desired temperature.
Note: Do not operate COOL mode at very low outside temperatures (less than -10°C). Water condensed in the unit may drip and wet or damage furniture, etc.
DRY modeDehumidify your room. The room may be cooled slightly.
Temperature cannot be set during DRY mode.
HEAT modeEnjoy warm air at your desired temperature.
FAN modeCirculate the air in your room.
Note: After COOL/DRY mode operation, it is recommended to operate in the FAN mode to dry inside the indoor unit.
When the remote controller cannot be used...
Emergency operation can be activated by pressing the emergency operation switch (E.O.SW) on the indoor unit.
Each time the E.O.SW is pressed, the operation changes in the following order:
Operation indicator lamp
Set temperature : 24°C
Fan speed : Medium
Horizontal vane : Auto
Note:
If a power failure occurs or the main power is turned off during operation, “Auto restart function” automatically starts operation in the same mode as the one set with the remote controller just before the shutoff of the main power. When timer is set, timer setting is cancelled and the unit starts operation when power is resumed.
If you do not want to use this function, please consult the service representative because the setting of the unit needs to be changed.
<GL25/35/42/50/60>
Press 
to select fan speed. Each press changes fan speed in the following order:
Press 
to select airflow direction. Each press changes airflow direction in the following order:
(AUTO) .........The vane is set to the most efficient airflow direction. COOL/ DRY/FAN: horizontal position. HEAT: position (4).
(Manual) .......For efficient air conditioning, select the upper position for COOL/DRY, and the lower position for HEAT. If the lower position is selected during COOL/DRY, the vane automatically moves to the horizontal position after 0.5 to 1 hour to prevent any condensation from dripping.
(Swing) .........The vane moves up and down intermittently.
Move the vertical vane manually before starting operation
<GL71/80>
Press 
to select fan speed. Each press changes fan speed in the following order:
Press 
to select airflow direction. Each press changes airflow direction in the following order:
Press 
to select horizontal airflow direction. Each press changes airflow direction in the following order:
(AUTO) .........The vane is set to the most efficient airflow direction. COOL/ DRY/FAN: horizontal position. HEAT: position (5).
(Manual) .......For efficient air conditioning, select the upper position for COOL/DRY, and the lower position for HEAT. If the lower position is selected during COOL/DRY, the vane automatically moves to the horizontal position after 0.5 to 1 hour to prevent any condensation from dripping.
(Swing) .........The vane moves up and down intermittently
<GL71/80 only>
Press 
to start LONG operation.
Press 
again to cancel LONG operation.
<GL71/80 only>
Press 
during COOL or HEAT mode 
to start POWERFUL operation.
Fan speed : Exclusive speed for POWERFUL mode
Horizontal vane : Set position, or downward airflow position during AUTO setting
Press 
again to cancel POWERFUL operation.
during COOL, ECONO COOL, or HEAT mode to select i-save mode.
.Press 
again to cancel i-save operation.
button. Press the button again and you can go back to the previous setting in an instance.Example of use:
1. Low energy mode
Set the temperature 2°C to 3°C warmer in COOL and cooler in HEAT mode.
This setting is suitable for unoccupied room, and while you are sleeping.
2. Saving frequently used settings
Save your preferred setting for COOL/ECONO COOL and HEAT. This enables you to select your preferred setting with a single push of the button.
Press 
during COOL mode 
to start ECONO COOL operation.
The unit performs swing operation vertically in various cycles according to the temperature of airflow.
Press 
again to cancel ECONO COOL operation.
Swing airflow (change of air flow) makes you feel cooler than stationary airflow. The set temperature and the airflow direction is automatically changed by the microprocessor. It is possible to perform cooling operation with keeping comfort. As a result energy can be saved.
1. Press 
or 
during operation to set the timer.
(ON timer) : The unit turns ON at the set time.
(OFF timer) : The unit turns OFF at the set time.
* 
or 
blinks.
* Make sure that the current time and day are set correctly. 
2. Press 
(Increase) and 
(Decrease) to set the time of timer.
Each press increases or decreases the set time by 10 minutes.
or is blinking.3. Press or again to cancel timer
Note:
mark indicates the order of timer operations.
“Auto restart function”.E.g: Runs at 24°C from waking up to leaving home, and runs at 27°C from getting home to going to bed on weekdays.
Runs at 27°C from waking up late to going bed early on weekends
Note: The simple ON/OFF timer setting is available while the weekly timer is on. In this case, the ON/OFF timer has priority over the weekly timer; the weekly timer operation will start again after the simple ON/OFF timer is complete.
* Make sure that the current time and day are set correctly.
1. Press 
to enter the weekly timer setting mode.
2. Press 
and 
to select setting day and number.
3. Press 
, 
and 
to set ON/OFF, time, and temperature.
* Hold down the button to change the time quickly.
* The temperature can be set between 16°C and 31°C at weekly timer.
Press 
and 
to continue setting the timer for other days and/or numbers.
4. Press 
to complete and transmit the weekly timer setting.
Note:
to transmit the setting information of weekly timer to the indoor unit. Point the remote controller toward the indoor unit for 3 seconds. does not have to be pressed per each setting. Press once after all the settings are complete. All the weekly timer settings will be saved. to enter the weekly timer setting mode, and press and hold 
for 5 seconds to erase all weekly timer settings. Point the remote controller toward the indoor unit.5. Press 
to turn the weekly timer ON. (
lights.)
* When the weekly timer is ON, the day of the week whose timer setting is complete, will light.
Press 
again to turn the weekly timer OFF. (
goes out.)
Note: The saved settings will not be cleared when the weekly timer is turned OFF.
1. Press 
to enter the weekly timer setting mode.
* 
blinks.
2. Press 
or 
to view the setting of the particular day or number.
Press 
to exit the weekly timer setting
Note: When all days of the week are selected to view the settings and a different setting is included among them, 
will be displayed.
Demand response
This unit has demand response capability which is compliant with AS/NZS 4755.3.1.
To activate this function, you need to make a contract with remote agents such as electric supply company, then this unit should be connected to Demand response enabling devise (DRED). For further information, consult your dealer.
Demand response represents the automated alteration of an electrical product’s normal mode of operation in response to an initiating signal originating from or defined by a remote agent.
This unit supports 3 Demand Response Modes (DRMs).
Note:
Instructions:
1. Lift the front panel until a “click” is heard.
2. Hold the hinges and pull to remove as shown in the above illustration.
3. Install the front panel by following the removal procedure in reverse. Close the front panel securely and press the positions indicated by the arrows.
Important
Air outlet and Fan (before cleaning, make sure that the fan is stopped)
1. <GL25/35/42/50/60>
Turn the horizontal vane downward. Then, remove the vane as shown in ➀ and ➁.
<GL71/80>
Turn the horizontal vanes downward. Then, remove the upper vane as shown in ➀ and ➁.
2. Swing out the two vertical vanes one by one.
3. Clean the air outlet and fan.
4. Put the vertical vanes back to their original positions correctly one by one, into their respective guide.
5. Install the horizontal vanes by following the removal procedure in reverse.
Note: Do not apply excessive force to the fan or fan guard.
Even if these items are checked, when the unit does not recover from the trouble, stop using the air conditioner and consult your dealer.
| Symptom | Explanation & Check points |
| Indoor Unit | |
| The unit cannot be operated. | • Is the breaker turned on? • Is the power supply plug connected? • Is the ON timer set? Page 8 |
| All LED lamps on the indoor unit are blinking. | • Are the horizontal vanes installed correctly? Page 11 |
| The horizontal vane does not move. | • Are the horizontal vane and the vertical vane installed correctly? Page 11 • Is the fan guard deformed? |
| The unit cannot be operated for about 3 minutes when restarted. | • This protects the unit according to instructions from the microprocessor. Please wait. |
| Mist is discharged from the air outlet of the indoor unit. | • The cool air from the unit rapidly cools moisture in the air inside the room, and it turns into mist. |
| The swing operation of the HORIZONTAL VANE is suspended for a while, then restarted. | • This is for the swing operation of the HORIZONTAL VANE to be performed normally |
The airflow direction changes during operation. The direction of the horizontal vane cannot be adjusted with the remote controller. | • When the unit is operated in COOL or DRY mode, if the operation continues with air blowing down for 0.5 to 1 hour, the direction of the airflow is automatically set to horizontal position to prevent water from condensing and dripping. • In the heating operation, if the airflow temperature is too low or when defrosting is being done, the horizontal vane is automatically set to horizontal position. |
| The operation stops for about 10 minutes in the heating operation. | • Outdoor unit is in defrost. Since this is completed in max. 10 minutes, please wait. (When the outside temperature is too low and humidity is too high, frost is formed.) |
| The unit starts operation by itself when the main power is turned on, but isn’t received sign from the remote controller. | • These models are equipped with an auto restart function. When the main power is turned off without stopping the unit with the remote controller and is turned on again, the unit starts operation automatically in the same mode as the one set with the remote controller just before the shutoff of the main power. Refer to “Auto restart function” Page 5 . |
| In COOL/DRY mode, when the room temperature reaches near the set temperature, the outdoor unit stops, then the indoor unit operates at low speed. | • When the room temperature rises and the outdoor unit turns on, the indoor fan starts running according to the settings on the remote controller. |
| The indoor unit discolors over time. | • Although plastic turns yellow due to the influence of some factors such as ultraviolet light and temperature, this has no effect on the product functions. |
| Outdoor Unit | |
| The fan of the outdoor unit does not rotate even though the compressor is running. Even if the fan starts to rotate, it stops soon. | • When the outside temperature is low during cooling operation, the fan operates intermittently to maintain sufficient cooling capacity |
| Water leaks from the outdoor unit. | • During COOL and DRY operations, pipe or pipe connecting sections are cooled and this causes water to condense. • In the heating operation, water condensed on the heat exchanger drips down. • In the heating operation, the defrosting operation makes ice forming on the outdoor unit melt and drip down. |
| White smoke is discharged from the outdoor unit. | • In the heating operation, vapor generated by the defrosting operation looks like white smoke. |
| Remote controller | |
| The display on the remote controller does not appear or it is dim. The indoor unit does not respond to the remote control signal. | • Are the batteries exhausted? Page 4 • Is the polarity (+, -) of the batteries correct? Page 4 • Are any buttons on the remote controller of other electric appliances being pressed? |
| Does not cool or heat | |
| The room cannot be cooled or heated sufficiently. | • Is the temperature setting appropriate? Page 5 • Is the fan setting appropriate? Please change fan speed to High or Super High. Page 6 • Are the filters clean? Page 11 • Is the fan or heat exchanger of the indoor unit clean? Page 11 • Are there any obstacles blocking the air inlet or outlet of the indoor or outdoor unit? • Is a window or door open? • It may take a certain time to reach the setting temperature or may not reach that depending on the size of the room, the ambient temperature, and the like |
| The room cannot be cooled sufficiently. | • When a ventilation fan or a gas cooker is used in a room, the cooling load increases, resulting in an insufficient cooling effect. • When the outside temperature is high, the cooling effect may not be sufficient. |
| The room cannot be heated sufficiently | • When the outside temperature is low, the heating effect may not be sufficient. |
| Air does not blow out soon in the heating operation. | • Please wait as the unit is preparing to blow out warm air. |
| Poor cooling or heating performance. | • Do you have an arrangement with your electric company for Demand Response? |
| Airflow | |
| The air from the indoor unit smells strange. | • Are the filters clean? Page 11 • Is the fan or heat exchanger of the indoor unit clean? Page 11 • The unit may suck in an odor adhering to the wall, carpet, furniture, cloth, etc. and blow it out with the air. |
| Sound | |
| Cracking sound is heard. | • This sound is generated by the expansion/ contraction of the front panel, etc. due to change in temperature. |
| “Burbling” sound is heard. | • This sound is heard when the outside air is absorbed from the drain hose by turning on the range hood or the ventilation fan, making water flowing in the drain hose to spout out. This sound is also heard when the outside air blows into the drain hose in case the outside wind is strong. |
| Mechanical sound is heard from the indoor unit. | • This is the switching sound in turning off/on the fan or the compressor. |
| The sound of water flowing is heard. | • This is the sound of refrigerant or condensed water flowing in the unit. |
| Hissing sound is sometimes heard. | • This is the sound when the flow of refrigerant inside the unit is changed. |
| Timer | |
| Weekly timer does not operate according to settings. | • Is the ON/OFF timer set? Page 8, 9 • Transmit the setting information of the weekly timer to the indoor unit again. When the information is successfully received, a long beep will sound from the indoor unit. If information fails to be received, 3 short beeps will be heard. Ensure information is successfully received. Page 9 • When a power failure occurs and the main power turns off, the indoor unit built-in clock will be incorrect. As a result, the weekly timer may not work normally. Be sure to place the remote controller where the signal can be received by the indoor unit. Page 3 |
| The unit starts/stops the operation by itself. | • Is the weekly timer set? Page 9 |
In the following cases, stop using the air conditioner and consult your dealer.
1. Set to the highest temperature in manual COOL mode, and operate for 3 to 4 hours. Page 5
2. Press 
to stop the operation.
3. Turn off the breaker and/or disconnect the power supply plug.
4. Remove all batteries from the remote controller.
When using the air conditioner again:
Avoid installing the air conditioner in the following places.
If you have any questions, consult your dealer.
Guaranteed operating range
DB : Dry Bulb
WB : Wet Bulb
Reference file: Mitsubishi MSZ-GL60VGD R32 GL60 High Wall Heat Pump
Additionally, the document applies to other Mitsubishi models: MSZ-GL25VGD, MSZ-GL35VGD, MSZ-GL42VGD, MSZ-GL50VGD, MSZ-GL71VGD, MSZ-GL80VGD
