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Automatic Function
Display Message: REFRIGERANT INSUFF
Iftheweightenteredismorethantherefrigerant
availableintheISV,thechargefunctionwillnotstart.
Thedisplayreads
REFRIGERANTINSUFF.
RefertoManuallyFilltheISVintheMaintenance
section.
Display Message: PRESSURE TOO HIGH
FOR VACUUM
BeforethemachinebeginsevacuatingtheA/Csystem
duringtheautomaticsequence,itchecksforany
pressureinthesystemthatmaydamagethevacuum
pump.Ifpressureisdetected,themachinedisplays
PRESSURETOOHIGH!X.XXBAR
CHECKCONNECTIONS.
PressESC.Recoverrefrigerantbeforeproceeding.
Display Message: VACUUM TIME X:XX MIN
Ifaleaktestwasprogrammed,andaleakisdetected,
themachinedisplays
VACUUMTIMEX:XXMIN
LEAKTESTRESULTNEGATIVE
PressESCtoexittheautomaticsequenceandperform
neededrepairs.PressOKtocontinuetheautomatic
sequencedespitethefailedleaktest.
Display Message: PURITY TEST FAILED
RefertoTroubleshooting Procedures, Recover
Function and Automatic Function.
Information
Toensureanaccurateleaktest,itisimperativethat
athoroughrecoveryandevacuationofthesystemis
performed.Duringtherecoveryprocess,coldspotscan
developintheA/Csystem.Pocketsofrefrigerantin
desiccantandinsystemoilwillcontinuetovaporizeas
theA/Csystemtemperatureequalizestowardambient.
Asthisoccurs,A/Csystempressureincreases,which
maybeinterpretedbythemachineasaleak.This
variessomewhatwithambienttemperatureconditions.
Troubleshooting Procedures