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11.4 Malfunction codes
Incaseamalfunctioncodeappearsontheindoor
unituserinterfacedisplay,contactyourinstaller
andinformthemalfunctioncode,theunittype,and
serialnumber(youcanndthisinformationonthe
nameplateoftheunit).
Foryourreference,alistwithmalfunctioncodesis
provided.Yo u can,dependingonthelevelofthe
malfunctioncode,resetthecodebypushingthe
ON/OFFbutton.Ifnot,askyourinstallerforadvice.
Malfunction
code
Contents
Main code
A0
Externalprotectiondevicewasactivated
a1
EEPROMfailure(indoor)
A3
Drainsystemmalfunction(indoor)
A6
Fanmotormalfunction(indoor)
A7
Swingapmotormalfunction(indoor)
A9
Expansionvalvemalfunction(indoor)
AF
Drainmalfunction(indoorunit)
Ah
Filterdustchambermalfunction(indoor)
AJ
Capacitysettingmalfunction(indoor)
C1
TransmissionmalfunctionbetweenmainPCBand
subPCB(indoor)
C4
Heatexchangerthermistormalfunction
(indoor;liquid)
C5
Heatexchangerthermistormalfunction
(indoor;gas)
C9
Suctionairthermistormalfunction(indoor)
CA
Dischargeairthermistormalfunction(indoor)
CE
Movementdetectororoortemperaturesensor
malfunction(indoor)
CJ
Userinterfacethermistormalfunction(indoor)
e1
PCBmalfunction(outdoor)
e3
Highpressureswitchwasactivated
e4
Lowpressuremalfunction(outdoor)
e5
Compressorlockdetection(outdoor)
e6
Compressordamagealarm
e7
Fanmotormalfunction(outdoor)
e9
Electronicexpansionvalvemalfunction(outdoor)
F3
Dischargetemperatureoroverloadprotectorwas
activated(outdoor)
f4
Abnormalsuctiontemperature(outdoor)
f6
Refrigerantoverchargedetection
H3
Highpressureswitchwasactivated
H5
Overloadprotectormalfunction
H7
Fanmotortrouble(outdoor)
H9
Ambienttemperaturesensormalfunction(outdoor)
J1
Pressuresensormalfunction
J3
Dischargetemperaturesensormalfunction(outdoor)
J5
Suctiontemperaturesensormalfunction(outdoor)
J6
De-icingtemperaturesensormalfunction(outdoor)
J7
Liquidtemperaturesensor(aftersubcoolHE)
malfunction(outdoor)
J8
Liquidtemperaturesensor(coil)malfunction(outdoor)
Malfunction
code
Contents
Main code
J9
Gastemperaturesensor(aftersubcoolHE)
malfunction(outdoor)
JA
Highpressuresensormalfunction(S1NPH)
JC
Lowpressuresensormalfunction(S1NPL)
L1
INVcircuitabnormal
L4
Fintemperatureabnormal
L5
INVcircuitfaulty
L8
Compressorovercurrentdetected
L9
INVcompressorstartupabnormal
Lc
INVcircuittransmissiontrouble
P1
INVunbalancedpowersupplyvoltage
p2
Autochargeoperationrelated
P4
Finthermistormalfunction
p8
Autochargeoperationrelated
p9
Autochargeoperationrelated
pj
Capacitysettingmalfunction(outdoor)
u0
Refrigerantshortagewarning
u2
INVvoltagepowershortage
u3
Systemtestrunnotyetexecuted
u4
Faultywiringindoor/outdoor
u5
Abnormaluserinterface-indoorcommunication
u8
Abnormalmain-subuserinterfacecommunication
u9
Systemmismatch.Wrongtypeofindoorunitscombined.
Indoorunitmalfunction.
ua
Connectionmalfunctionoverindoorunitsortype
mismatch
uc
Centralizedaddressduplication
ue
Malfunctionincommunicationcentralizedcontrol
device-indoorunit
uf
Autoaddressmalfunction(inconsistency)
uh
Autoaddressmalfunction(inconsistency)
01_EN_3P344160-11V.indd 17 08-Oct-20 9:22:57 AM