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These error codes are provided based on the best of our knowledge, the same set of error codes may differ depending on different models. Check with your aircon manufacturer when in doubt:

When your “timer” light blinks, it is not that your timer is faulty. Most manufacturer uses blinking LED lights to indicate a 
faulty air conditioning system

Video instructions to retrieve Daikin error code using 
the remote controller:

1) If your DAIKIN remote controller comes with a 
“test” button, use it. Otherwise press the 
Temperature UP, Temperature DOWN and the 
MODE buttons all at the same time.

2) You will see 00 on the remote controller. The 
first “0” will be blinking.

Stand facing the particular air conditioner you 
wanted to test.

Now press the Temperature UP button, “0” will 
become “A” and the air conditioner will respond 
with either a single beep or double beep.

Carry on pressing the Temperature UP button 
and listen to the beeping sound, stop when you 
hear a double beep.
For example: it is now showing “C0”.

Now press the MODE button, the second “0” will 
be blinking.
Now press the Temperature UP button, “0” will 
become “1” and the air conditioner will respond 
with either a  double beep or a continuous beep.

The continuous beep is the error code. For 
example “C4”, it means it is a faulty liquid pipe 
thermistor.

Daikin RA, Skyair, VRV, PA series malfunction Code

Mitsubishi (Mr Slim), non inverter error codes:

The Mr. Slim error code is represented by the number of blinks on the LED (light emitting diode).

Mitsubishi (Starmex), Inverter error codes:

The Starmex error code is represented by the number of blinks on the LED (light emitting diode).

Mitsubishi(Mr Slim), non inverter error codes:

The Mr. Slim error code is represented by the number of blinks on the LED (light emitting diode).

Mitsubishi (Starmex), Inverter error codes:

The Starmex error code is represented by the number of blinks on the LED (light emitting diode).

Samsung error codes:

The Samsung wall mounted air conditioner error code is represented by blinks on the different LEDs (light emitting diode):
*    blinking

LG error codes:

LG error code is a 2 digit error code (eg. 48), wired remote controller and some of the wall mounted aircon models provide a display to show this error codes. However, if the aircon/remote controller does not come with any displays, the error code will be a combination of the blinking LED as seen below. An error code of 48 will have the LEFT LED (2nd digit) blinking 8 times and the STAR LED (1st digit) blinking 4 times.

Hitachi (Ras-model) error codes:

The ras model error code is represented by the number of blinks on the LED (light emitting diode):

Sanyo (inverter, sap kmv series) error codes:

The above model error code is represented by the combination of blinks and lighted LED on the 3 different LED (light 
emitting diode), operation, swing and timer.
*    blinking
0   lighted up

Fujitsu error codes (hard wired series)

When EE:EE is displayed, press “energy save” and “zone control” simultaneously for about 3-5 secs.

Or , press “temperature Up” and “temperature down” simultaneously for 3-5 secs.

Otherwise, try ‘Master ” and “Fan” simultaneously for 3-5 secs.

The lcd display should display the relevant error code.

Fujitsu error codes (by reading at flashing LED from outdoor PCB)

Outdoor PCB Fault Codes
Inverter OD Unit PCBs (1 red LED)

OD PCB LED Pulses = 1
Models 9-30 = Comms Failure
Models 36-54 = Comms Failure

OD PCB LED Pulses = 2
Models 9-30 = Disch Sensor Fail
Models 36-54 = Disch Sensor Fail

OD PCB LED Pulses = 3
Models 9-30 = Pipe Sensor Fail
Models 36-54 = Pipe Sensor Fail

OD PCB LED Pulses = 4
Models 9-30 = Air Sensor Fail
Models 36-54 = Air Sensor Fail

OD PCB LED Pulses = 5
Models 9-30 = 2 Way Valve Sensor
Models 36-54 =

OD PCB LED Pulses = 6
Models 9-30 = 3 Way Valve Sensor
Models 36-54 =

OD PCB LED Pulses = 7
Models 9-30 = Compressor Thermistor
Models 36-54 = Compressor Thermistor

OD PCB LED Pulses = 8
Models 9-30 = Pressure Switch
Models 36-54 = Heat Sink Sensor Fail

OD PCB LED Pulses = 9
Models 9-30 = Indoor Comms Error
Models 36-54 = Pressure Switch

OD PCB LED Pulses = 10
Models 9-30 = Current Trip
Models 36-54 =

OD PCB LED Pulses = 11
Models 9-30 = CT Fail
Models 36-54 =

OD PCB LED Pulses = 12
Models 9-30 = Compressor Position Fail
Models 36-54 = IPM Error

OD PCB LED Pulses = 13
Models 9-30 = Compressor Start Fail
Models 36-54 = Compressor Position Fail

OD PCB LED Pulses = 14
Models 9-30 = Timer Failure
Models 36-54 = Compressor Start Fail

OD PCB LED Pulses = 15
Models 9-30 =
Models 36-54 = OD Upper Fan Fail

OD PCB LED Pulses = 16
Models 9-30 =
Models 36-54 = OD Lower Fan Fail

OD PCB LED Pulses = Slow Blink
Models 9-30 =
Models 36-54 = Protect Operation

Non Inverter OD PCBs (2 red LEDs)

LED1 = Blinks
LED2 = Blinks
OD PCB Fail

LED1 = 1 Pulse
LED2 = Lit
Power Source Failure

LED1 = 2 Pulse
LED2 = Lit
OD Disch Temp Sensor

LED1 = 3 Pulse
LED2 = Lit
OD Pipe Sensor

LED1 = 4 Pulse
LED2 = Lit
OD Air Sensor

LED1 = 5 Pulse
LED2 = Lit
Comms Failure

LED1 = 6 Pulse
LED2 = Lit
Indoor Unit Error

LED1 = 7 Pulse
LED2 = Lit
High Discharge Temp

LED1 = 8 Pulse
LED2 = Lit
High Pressure

LED1 = 9 Pulse
LED2 = Lit
Compressor Temp Abnormal

LED1 = 10 Pulse
LED2 = Lit
Compressor Temp Sensor Fail

Inverter Multi AOY30
This has 4 LEDs A,B, C & D to denote which circuit has the fault
Up to 8 flashes – faults are identical to above 9-30 Single System

9 Pressure Switch A
10 Pressure Switch B
11 Indoor Unit Indexing Problem
12 IPM Fail
13 Compressor Position Fail
14 Compressor Fail
15 OD Fan Upper Fail
16 OD Fan Lower Fail
17 PCB Fail

Instruction to retrieve Panasonic error code 
using the remote controller:

1) Turn off the aircon using the remote 
controller.

2) Use a sharp object to press the “Check” 
button. “00” will first appear.

3) Point the remote controller at the aircon 
and press the “timer” up/down buttons to 
toggle the error code.

4) once the correct error code is retrieved, 
the aircon will beep.

Toshiba Malfunction Codes

TECO Fault Codes:

When a TECO air conditioner is faulty, the operation light will be flashing. The combination of the DEFROST, TIMER and AUTO will indicate 
the type of malfunction. Please note that we’ve added our own interpretation on the last column.

Midea Indoor Malfuction Codes (MSE /MSX/MSK Series)

Midea Outdoor Malfuction Codes ( 21K-24KBTU MSK Series)