Daikin Super Multi Plus E-Series - Troubleshooting with the LED on the BP Unit

Caution for Diagnosis SiEN18-622
306 Troubleshooting
1.4 Troubleshooting with the LED on the BP Unit
LEDA(H1P)
(Q0395)
LED1(H2P)
LED2(H3P)
LED3(H4P)
LED4(H5P)
HIGH PRESSURE PROTECTOR WORKED, OR FREEZE-UP IN OPERATING UNIT OR STAND-BY UNIT
POWER SUPPLY FAULT OR [NOTE 2]
DIAGNOSIS
DIAGNOSIS
LED-2 LED-3LED-1
GREEN
THERMISTOR ABNORMALITY
RED
[NOTE 1]
NORMAL → CHECK INDOOR OR OUTDOOR UNIT
RED
GREEN
FLASH
INTERCOMMNICATION TO
ELECTRONIC EXPANSION VALVE ABNORMALITY
LED-4
NORMALLY FLASHING
OFF
NORMAL
ABNORMALITY → CHECK INTER-UNIT WIRING
ON
MALFUNTION DETECTION
IRRELEVANT
NORMALLY OFF
LED-B (GREEN)
MICROCOMPUTER
: NORMAL
LED-A
ABNORMALITY → CHECK INTER-UNIT WIRING
⎯⎯⎯⎯
⎯⎯⎯⎯
⎯
NOTES
3P058760C
OUTDOOR UNIT : NORMAL
1.TURN THE POWER OFF THEN ON AGAIN, IF THE LED DISPLAY RECURS, THE BRANCH PROVIDER UNIT PCB IS FA
U
2.TURN THE POWER OFF AND THEN ON AGAIN, IF THE LED DISPLAY RECURS, TURN THE POWER OFF AND DISCO
N
LINE 2 OF INTER-UNIT WIRING FOR ALL UNITS, THEN TURN THE POWER ON AGAIN.
<IF LED-A IS OFF : >
THE BRANCH PROVIDER UNIT PCB IS FAULTY.
<IF LED-A IS FLASHING : >
THE INDOOR UNIT PCB IS FAULTY. TURN THE RECONNECT LINE 2 OF ALL INTER-UNIT WIRING AND CHECK
THE DAIGNOSIS BY LEDS ON INDOOR UNIT PCB.