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LG GA-B409U QA Series User Manual

LG GA-B409U QA Series
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Page #16 background image
-16-
CAUSE
STATEOF
THESET
TEMPERATURE
OFTHE
COMPRESSOR
STATEOFTHE
EVAPORATOR
REMARKS
PARTIAL
LEAKAGE
WHOLE
LEAKAGE
PARTIAL
CLOG
WHOLE
CLOG
MOISTURE
CLOG
COMP-
RESSION
NOCOMP-
RESSION
LEAKAGE
CLOGGED BY
DUST
DEFECTIVE
COMPRESSION
Freezerroomand
Refrigeratordon'tcool
normally.
Freezerroomand
Refrigeratordon'tcool
normally.
Freezeroomand
Refrigeratordon'tcool
normally.
Freezerroomand
Refrigeratordon't
cool.
Coolingoperation
stopsperiodically.
Freezerand
Refrigeratordon't
cool.
Nocompressing
operation.
LowflowingsoundofRefrigerant
isheardandfrostformsininlet
only.
FlowingsoundofRefrigerantis
notheardandfrostisn'tformed.
FlowingsoundofRefrigerantis
heardandfrostformsininlet
only.
FlowingsoundofRefrigerantis
notheardandfrostisn'tformed.
FlowingsoundofRefrigerantis
notheardandfrostmelts.
LowflowingsoundofRefrigerant
isheardandfrostformsininlet
only.
FlowingsoundofRefrigerantis
notheardandnofrost.
Alittlehighmorethan
ambienttemperature.
Equaltoambient
temperature.
Alittlehighmorethan
ambienttemperature.
Equaltoambient
temperature.
Lowthanambient
temperature.
Alittlehighthan
ambienttemperature.
Equaltoambient
temperature.
• A little Refrigerant discharges.
Normal cooling is possible
when injecting of Refrigerant
the regular amount.
• No discharging of Refrigerant.
Normal cooling is possible
when injecting of Refrigerant
the regular amount.
Normal discharging of
refrigerant.
• The capillary tube is faulty.
Normal discharging of
Refrigerant.
Cooling operation restarts
when heating the inlet of
capillary tube.
The pressure of high pressure
part in compressor is low.
No pressure of high pressure
part in the compressor.
YES
YES
WhetherCompressor
runsornot.
Whetherfrost
formsornotin
Evaporator
.
Observethedischarged
amountofRefrigerant.
InjectRefrigeranttoCompressor
andcheckcoolingoperation.
Cloggedbydust. Gasleakage.
Faulty
Compressor.
MoistureClog.
Whetheroil
leaksornot.
Frostformednormally
Normalamount
Noormuchamount
(Checktheleakagepoint)
Frostformednormally
Nofrost
orforms
ininletonly
CheckCompressor
5.REFRIGERATINGCYCLE
TroubleshootingChart
LeakageDetection
Observedischargingpointofrefrigerantwhichmaybeintheoildischargingpartinthecompressorandholeofevaporator.
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LG GA-B409U QA Series Specifications

General IconGeneral
Energy Efficiency ClassA++
Climate ClassSN-T
RefrigerantR600a
Smart DiagnosisYes
Door CoolingYes
Linear CoolingYes
Zero ClearanceYes
Multi Air FlowYes
DisplayLED

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