Daikin FTXS20K2V1B - LED ON OUTDOOR UNIT PCB

41
Troubleshooting
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LED ON OUTDOOR UNIT PCB
3MXS, 4MXS, 5MXS series
GREEN RED
MICROCOMPUTER
NORMAL
MALFUNCTION
DETECTION
LED-A LED1 LED2 LED3 LED4 LED5 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TOMAINCIRCUITORMOMENTARYVOLTAGE
LOSS
● ● ● ●
REVERSINGSOLENOIDVALVESWITCHINGFAILURE
●
FANMOTORFAULT
− − − −
●
[NOTE1]
●
− − − −
●
POWERSUPPLYFAULTOR[NOTE2]
NOTE:TheLED5isonlyavailableinthe5Mseries.
GREEN NORMALLYFLASHING
RED NORMALLYOFF
ON
FLASHING
●
OFF
−
IRRELEVANT
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LED ON OUTDOOR UNIT PCB
2MXS series
GREEN
MICROCOMPUTERNORMAL
LED-A DIAGNOSIS
NORMAL CHECKINDOORUNIT
[NOTE1]
●
POWERSUPPLYFAULTOR[NOTE2]
GREEN NORMALLYFLASHING
ON
FLASHING
●
OFF
NOTE
• Turnthepoweroffandthenonagain.IftheLEDdisplayrecurs,theoutdoorunitPCBisfaulty.
• Diagnosismarked
*Donotapplytosomecases.Fordetails,refertotheserviceguide.
01_EN_3P297033-1.indd 41 10/12/2011 2:15:41 PM