Daikin E-Series Service Manual page 200

SiENBE12-620
LED ON OUTDOOR UNIT PCB
GREEN
MICROCOMPUTER
NORMAL
LED-A
5
5
5
5
5
5
5
5
5
5
5
5
5
4
1
GREEN NORMALLY FLASHING
RED NORMALLYU OFF
ON
4
FLASHING
5
OFF
1
- IRRELEVANT
LED ON OUTDOOR UNIT PCB
GREEN
MICROCOMPUTER
NORMAL
LED-A
NORMAL CHECK INDOOR UNIT
5
[NOTE 1]
4
POWER SUPPLY FAULT OR [NOTE 2]
1
GREEN NORMALLY FLASHING
ON
4
FLASHING
5
OFF
1
NOTES
1. Turn the power off and then on again. If the LED display recurs,the outdoor unit PCB is faulty.
2. Diagnosis marked
*Do not apply to some cases. For details, refer to the service guide.
System Configuration
3MXS, 3MKS, 4MXS, 4MKS series
RED
MALFUNCTION
DETECTION
LED1 LED2 LED3 LED4
NORMAL CHECK INDOOR UNIT
1 1 1 1
HIGH PRESSURE PROTECTOR WORKED OR FREEZE-UP IN OPERATING
4 1 4 4
UNIT OR STAND-BY UNIT
* OVERLOAD RELAY WORKED OR HIGH DISCHARGE PIPE TEMPERATURE
4 1 4 1
FAULTY COMPRESSOR START
1 4 4 1
INPUT OVERCURRENT
1 4 1 4
* THERMISTOR OR CT ABNORMALITY
4 4 1 1
HIGH TEMPERATURE SWITCHBOX
4 4 1 4
HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
1 1 1 4
* OUTPUT OVERCURRENT
1 1 4 1
* REFRIGERANT SHORTAGE
1 1 4 4
LOW VOLTAGE TO MAIN CIRCUIT OR MOMENTARY VOLTAGE LOSS
4 1 1 4
REVERSING SOLENOID VALVE SWITCHING FAILURE
4 1 1 1
FAN MOTOR FAULT
4 4 4 4
_ _ _ _ [NOTE 1]
_ _ _ _ POWER SUPPLY FAULT OR [NOTE 2]
2MXS, 2MKS serie
DIAGNOSIS
DIAGNOSIS
Instruction
191