Samsung AM080BXMDGH/EU Service Manual

TroubleshootingSamsung Electronics4-454-3-33 EVI EEV Open errorOutdoor unit displayIndoorunit displayJudgment Method . DSH <10 °C, EVI Out-in <= 0°C & frequency> 65Hz 40 minutes maintainingCause of problem . EVI EEV and Intercooler leakage, excessive refrigerant amount, Outdoor Check Valve inserted opposite.. Indoor Unit EEV leakage, direct connection between Indoor Liquid Pipe and the Gas Pipe.1. Cause of problemCheck the refrigerantNoReconnect connectorIs EVI EEV connector accurately connected to PCB?YesNoReassemble coilIs EEV coil accurately installed?YesBreakdownReplace IntercoolerCheck the Intercooler leakage.NormalCheck the Indoor Unit EEV leakage BreakdownReplace Indoor Unit EEVNormalReinstall pipeCheck the connection for Indoor Unit Pipe(Connect liquid pipe-gas pipe directly)NoReplace EVI EEVCheck the EVI EEV leakage.Yes※ Indoor Unit EEV leakage confirmation(In case it is normal, the EVA In and Out temperatures for the blast may rise.)ㆍ Operate cooling in one room any of the selected indoor unit. (Remainder Indoor Unit can confirm simply at the blast operation.)ㆍ In case it is normal, the EVA IN/OUT temperature of indoor unit that is on blast operation within 5 minutes is ascending to value that approachingin indoor temperature.( ※ Setting as opposed to the indoor unit blast operation and cooling operation functions of the indoor unit, and then check again.)※ If cooling operation is operated for low temperature with excessive refrigerant amount, then the DSH may descend.Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo 24℃ 27℃× × ◑ ◑ ◑ × ◑ ◑ ◑ × × ◑ ◑ ◑※ ● : ON ◑ : Flash × : OFF