Seg. Display On The Outdoor P. C. Board - Daikin FTX25JVEA9 Service Manual

Troubleshooting - Outdoor Unit Related
3.2

7 Seg. Display on the Outdoor P. C. Board

TROUBLE DAIGNOSIS
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LED ON OUTDOOR UNIT PCB
[ Blinking
[ GREEN ]
PCB4 LED (A)H1P
LED H2P
PCB1
NORMAL
LED H3P
PCB3
LED H4P
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DIGITAL DISPLAY
R o t a r y S W p o s i t i o n : S e t S W 1 t o 0 ,
DIGITAL
DISPLAY
INDOOR UNNIT : High pressure protector
worked, or freeze-up in operating unit
A5
(Stop due to peak cut, freeze)
BP UNIT : Malfunction of moving part of
A9
electoric expansion valve (Y1E ~ Y4E)
OUTDOOR UNIT : Actuation of high
E3
pressure switch
OUTDOOR UNIT : Compressor lock
E6
OUTDOOR UNIT : Fan motor lock or OCP
E7
(Output Over current Protect)
OUTDOOR UNIT : Inverter input over
E8
current protect
OUTDOOR UNIT : Malfunction of moving
E9
part of electoric expansion valve
(Y1E ~ Y3E)
OUTDOOR UNIT : Abnormal discharge pipe
F3
temperature
OUTDOOR UNIT : Low pressure drop error
FC
OUTDOOR UNIT : High pressure switch
H 3
failure
OUTDOOR UNIT : Compressor motor
H 6
position detection sensor error
OUTDOOR UNIT : Fan motor position
H 7
detection sensor error
OUTDOOR UNIT : AC current sensor error
H 8
OUTDOOR UNIT : Malfunction of
H 9
thermistor for outdoor air
OUTDOOR UNIT : Discharge pipe thermistor
J 3
or related abnormaly
OUTDOOR UNIT : Malfunction of suction
J 5
pipe thermistor
OUTDOOR UNIT : Malfunction of heat
J 6
exchanger thermistor
OUTDOOR UNIT : Malfunction of heat
J 7
exchanger liquid thermistor
BP UNIT : Malfunction of liquid
J 8
pipe thermistor
BP UNIT : Malfunction of gas pipe
J 9
thermistor
OUTDOOR UNIT : Malfunction of suction
J C
pipe pressure sensor
262
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L E D D I S P L A Y
[ ON ] OR [ OFF ] OR
[ B l i n k i n g q u i c k l y ]
slowly ]
ABNORMAL
(Malfunction of control unit)
S e t S W 2 t o 0 .
DIAGNOSIS
Service Monitor
OUTDOOR UNIT : Electoric component box
L3
over temperature
OUTDOOR UNIT : Radiation fin over
L4
temperature
OUTDOOR UNIT : Compressor motor
insulation defect, short circuit,
L5
power unit short circuit
OUTDOOR UNIT : Total input over current
L7
OUTDOOR UNIT : Compressor overload,
L8
compressor motor wire cut
OUTDOOR UNIT : Compressor start up error
L9
OUTDOOR UNIT : Malfunction of
transmission between inverter and
LC
outdoor control unit
OUTDOOR UNIT : Malfunction of
P3
electoric component box sensor
OUTDOOR UNIT : Malfunction of power
P4
unit temperature sensor
OUTDOOR UNIT : Refrigerant shortage
U0
OUTDOOR UNIT : Power supply
U2
insurfficient or instantaneous failure
Malfunction of transmission between
U4
BP unit and outdoor unit
Malfunction of transmission between
U6
indoor unit and BP unit
Malfunction of transmission between
fan control unit and outdoor control
U7
unit
BP UNIT : Failure of field setting
UA
OUTDOOR UNIT : Malfunction of outdoor
UH
control unit
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CAUTION
It is possible to check if the outdoor unit, or a
BP unit, is malfunctioning.
Rotary SW position : Set SW1 to 0, Set SW2 to 1.
(Digital display is as follows.)
Outdoor unit malfunction :
BP unit malfunction
DC fan malfunction
Return SW to original position. : "SW1 to 0, SW2 to 0"
Si18-201
Switch Box
7 seg. display
:
, ,
(UPPER) (LOWER)
:
2P060527
Service Diagnosis