Daikin FTXG25EV1BS Service Manual Page 199

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SiEBE12-625 Instruction
List of Functions 189
LED ON OUTDOOR UNIT PCB 3MXS, 3MKS, 4MXS, 4MKS series
NOTES
GREEN RED
MICROCOMPUTER
NORMAL
MALFUNCTION
DETECTION
LED-A
LED1 LED2 LED3 LED4
DIAGNOSIS
NORMAL -> CHECK INDOOR UNIT
HIGH PRESSURE PROTECTOR WORKED OR FREEZE-UP IN OPERATING UNIT OR STAND-BY UNIT
* OVERLOAD RELAY WORKED OR HIGH DISCHARGE PIPE TEMPERATURE
FAULTY COMPRESSOR START
INPUT OVERCURRENT
* THERMISTOR OR CT ABNORMALITY
HIGH TEMPERATURE SWITCHBOX
HIGH TEMPERATURE AT INVERTER CIRCUIT HEATSINK
* OUTPUT OVERCURRENT
* REFRIGERANT SHORTAGE
LOW VOLTAGE TOT MAIN CIRCUIT OR MOMENTARY VOLTAGE
LOSS
REVERSING SOLENOID VALVE SWITCHING FAILURE
FAN MOTOR FAULT
--- -[NOTE 1]
- - - - POWER SUPPLY FAULT OR [NOTE 2]
GREEN
NORMALLY
FLASHING
RED
NORMALLY OFF
ON
FLASHING
OFF
- IRRELEVANT
GREEN
MICROCOMPUTER
NORMAL
LED-A DIAGNOSIS
NORMAL-> CHECK INDOOR UNIT
[NOTE1]
POWER SUPPLY FAULT OR [NOTE2]
GREEN
NORMALLY
FLASHING
RED
NORMALLY OFF
ON
FLASHING
OFF
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.
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