Mitsubishi Heavy Industries SRK18YLV-S1, Technical Manual

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 35 

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'16 • SRK-T-192

'09•SRK-DB-087D

Wireless remote control setting

Fan speed

mode

Operation

mode

mode

mode

Displayed data

Temperature

setting

21ºC
22ºC
23ºC
24ºC
25ºC

Displays the reason for the stop (error code) the previous time an error was displayed.

Displays the reason for the stop (error code) 2 times previous when an error was displayed.
Displays the reason for the stop (error code) 3 times previous when an error was displayed.
Displays the reason for the stop (error code) 4 times previous when an error was displayed.
Displays the reason for the stop (error code) 5 times previous when an error was displayed.

Cooling

MED

Stop data

Wireless remote control setting

Fan speed

Operation 

Displayed data

Temperature

setting

21ºC
22ºC
23ºC
24ºC
25ºC
26ºC
27ºC
28ºC
29ºC
30ºC

Displays the reason for the stop (stop code) the previous time when the air-conditioner was stopped by protective stop control.

Displays the reason for the stop (stop code) 2 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 3 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 4 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 5 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 6 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 7 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 8 times previous when the air-conditioner was stopped by protective stop control.
Displays the reason for the stop (stop code) 9 times previous when the air-conditioner was stopped by protective stop control.

Displays the reason for the stop (stop code) 10 times previous when the air-conditioner was stopped by protective stop control.

Cooling

LO

(Example)

(ii) 

(c)  Error code, stop code table 

(Assignment of error codes and stop codes is done in common for all models.)

(2 times)

OFF

OFF

Major category

Number of flashes

when in service mode

Minor category

Error content

Stop code

 or 

Error code

TIMER

light

(1’s digit)

RUN

light

(10’s digit)

Cause

Occurrence conditions

Error

display

Auto

recovery

1-time

flash

1-time

flash

2-time

flash

7-time

flash

3-time

flash

1-time

flash

2-time

flash

3-time

flash

5-time

flash

2-time

flash

3-time

flash

4-time

flash

5-time

flash

6-time

flash

0

Normal

Current

Cut

Outdoor 

unit 

error

Current 

safe

11

17

31

33

35

22

12

13

14

15

16

Compressor software start

Compressor lock

Compressor wiring short circuit

Compressor output is open phase

Outdoor PCB is faulty

Compressor start fails 42 times in succession and the 

reason for the final failure is current cut.

After the compressor starts, it stops due to current cut at 

less than 20 rps.

When operation is stopped by current cut at 20 rps or 

higher.

When the DC voltage exceeds 390V.

When it is judged that the power transistor was damaged 

at the time the compressor started.
When it is judged that the power transistor was damaged 

at the time the compressor started.

When the curent is 1A or less the time the compressor

started.

When there is a current safe stop in current safe I mode 

during cooling operation.
When there is a current safe stop in current safe II mode 

during cooling operation.
When there is a current safe stop in current safe III mode 

during cooling operation.

Lower than 20 rps

20 rps or higher

Excessive voltage 

Short circuit in the power 

transistor (high side)
Current cut circuit 

breakdown

Software current cut

Compressor wiring is

unconnection voltage drop

Cooling current safe I

Cooling current safe II

Cooling current safe III

-

-

-

-

-

-

-

-

-

-

-

-

-

-

Service valve closed

Compressor output is open phase.

Electronic expansion valve is faulty.

Service valve is closed.

Compressor output is open phase.

Compressor is faulty.

Electronic expansion valve is faulty.

Overcharge

Compressor lock
Overcharge

Compressor lock
Overcharge

Compressor lock

9-time

flash

29

When the power source voltage drops during operation.

Voltage drop

-

Power source construction is defective.

Outdoor PCB is faulty.

Compressor wiring is disconnected.

Outdoor PCB is faulty.

Service valve is closed.

Compressor output is open phase.

Compressor is faulty.

Electronic expansion valve is faulty.

Outdoor PCB is faulty.

Power transistor is damaged.

Outdoor PCB is faulty.

.

Power transistor is damaged.

Outdoor PCB is defective.

Power source is abnormal.

3-time

flash

23

When an abnormal stop occurs 3 times with automatic 

recovery within 20 minutes after the outdoor unit’s power 

source was turned on.

Abnormal stop 3 times in 

20 minutes.

-

Service valve is closed.

Compressor output is open phase.

Electronic expansion valve is faulty.

Refrigerant is insufficient.

(3 times)

7-time

flash

Outdoor

 fan motor 

error

27

8-time

flash

28

When a fan speed of 75 min

-1

 or lower continues for 30

seconds or longer.

Outdoor unit’s fan motor 

is abnormal

Outdoor fan motor is fault

Power source construction

is faulty.

y.

Connector connections are poor.

Outdoor PCB is faulty.

When an error voltage of 150 V or less is input

Input of abnormal voltage

When the compressor has stopped with the current cut 

after starting it