Mitsubishi mr slim emergency operation switch

Q: How do I reset my Mitsubishi Mr Slim air conditioner?

To reset your Mitsubishi air conditioner, youll need to:.

If there is an emergency operation switch on the indoor unit, you can use it temporarily in case the remote control is broken or the battery is drained out.

Table of Contents Show

On the surface of air conditioner
Inside the open cover of air conditioner
Operation method
What is EO SW Mitsubishi?
How do I reset my Mitsubishi Mr Slim air conditioner?
Where is the reset button on a Mitsubishi mini split?
Where is the reset button on Mitsubishi air conditioner?

※There is an emergency operation switch or not and the operation method are different depending on the manufacturer and model number, please check the instruction manual for details

The emergency operation switch is usually installed on the below locations.

On the surface of air conditioner

Inside the open cover of air conditioner

Operation method

The operation method is different depending on a manufacturer and a model number, but mostly there is an operation method below.

The type that every time you push the buton, the mode will be changed in order of "cooling"→"heating"→"Stop"
The type that depending on the temperature inside the room and air temperature outside, it will select the mode and temperature automatically
The type that it operates the same mode and temperature to the previous operation
The type that it operates in case of emergency with the temperature set up at 25 degrees and can not change the temperature

Please check an instruction manual for details.

9-5-1. When IR wireless remote controller fails or its battery is exhausted

9-5-2. When wired remote controller or indoor unit microprocessor fails

1. When the wired remote control or the indoor unit microcomputer has failed, but all other components work properly,

if you set the switch (SWE) on the indoor controller board ON, the indoor unit will begin Emergency Operation.

When Emergency Operation is activated, the indoor unit operates as follows:

(1) Indoor fan is running at high speed.

Note on the IR wireless remote control

When the remote control does not function, it is possible to activate Emergency Operation by using the indoor unit

Emergency Operation switch.

However, if the indoor unit microprocessor has failed, it is nesessary to proceed with points 2 and 3 below as in the

case of the wired remote control.

2. When you activate Emergency Operation of the cooling or heating, you have to set the switch (SWE) on the indoor

controller board and activate Emergency Operation of the outdoor unit.

For details on how to activate Emergency Operation of the outdoor unit, refer to the outdoor unit wiring diagram.

3. Before you activate Emergency Operation, check the following points:

(1) Emergency operation cannot be activated when:

• the outdoor unit malfunctions. • the indoor fan malfunctions.

• when it has detected the malfunction of drain pump during self-diagnosing.

(2) Emergency Operation becomes continuous only by switching the power source on/off.

ON/OFF on the remote control or temperature control etc. does not function.

(3) Avoid operating for a long time when the outdoor unit begins defrosting while Emergency Operation of the heating is

activated, because it will start to blow cold air.

(4) Emergency cooling should be limited to 10 hours maximum (The indoor unit heat exchanger may freeze).

(5) After Emergency Operation has been deactivated, set the switches etc. to their original positions.

(6) Movement of the vanes does not work in Emergency operation, therefore you have to slowly set them manually

to the appropriate position.

When the remote controller cannot be used

When the batteries of the remote controller run out or the remote controller

malfunctions, the emergency operation can be done using the emergency

buttons.

DEFROST/STAND BY lamp (ORANGE)

Operation lamp (GREEN)

Emergency operation switch (cooling/heating)

Receiver

• Each press of the emergency operation switch will toggle the

operation mode.

• Check "COOL/HEAT" with the operation monitor display. (The display will

appear orange for 5 seconds after pressing the emergency operation switch.)

[Heat pump type]

Cooling

Heating

[Cooling Only type]

Cooling

Stop

Operation Monitor Display

GREEN

ORANGE

STOP

COOL

HEAT

OFF

* Details of emergency mode are as shown below.

Operation Mode

Set Temperature

Fan Speed

Airflow Direction Up and Down

Stop

The orange lamp follows the switch operation

as indicated at the left for 5 sedonds, and

then it will return to the normal display.

COOL

HEAT

24°C, 75°F

High

Horizontal

Downward

What is EO SW Mitsubishi?

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: Emergency COOL.

How do I reset my Mitsubishi Mr Slim air conditioner?

To reset your Mitsubishi air conditioner, you'll need to:.

Shut off the AC unit's power and the outdoor unit..

Wait for at least 30 seconds up to one minute..

Turn the power on again on both indoor and outdoor AC units..

Turn your Ac unit using the remote or turn on the thermostat..

Where is the reset button on a Mitsubishi mini split?

All Mitsubishi systems from the Mitsubishi 6000 BTU mini split to the 42,000 BTU mini split have at least one wireless remote control. These remote controls have a reset button at the bottom under the panel. Pressing the reset button ensures the remote is working correctly.

Where is the reset button on Mitsubishi air conditioner?

If you want to reset a Mitsubishi mini split air conditioner- perhaps the controls have become unresponsive- just press the unit's “reset” button (on the bottom). This should fix the issue if you're lucky. Keep in mind that you may need to reset the breaker too (if it had tripped).

mitsubishi mr slim emergency operation switch