Samsung AM056FN2DEH Series, Service Manual, Page: 5 / 670

Contents
4-4-36 MCU branch part setup error – Set as being used without connection to an Indoor unit ..................................456
4-4-37 MCU branch part setup error – Connect an Indoor unit to a branch part not being used ...................................457
4-4-38 MCU branch part setup error – Connect more Indoor units than what is actually set up in MCU .............. 458
4-4-39 Outdoor Temperature Sensor Error ............................................................................................................................................... 459
4-4-40 Outdoor Temperature dislocation error ......................................................................................................................................460
4-4-41 Cond Out Temperature Sensor Error (Open/Short) ................................................................................................................461
4-4-42 Outdoor Cond Out sensor breakaway error ..............................................................................................................................462
4-4-43 Digital Compressor Discharge Temperature Sensor Error (OPEN/SHORT) ...................................................................463
4-4-44 Constant Rate Compressor Discharge Temperature Sensor Error (OPEN/SHORT) ...................................................464
4-4-45 Compressor Discharge or Top 1/2 Temperature sensor error ...........................................................................................465
4-4-46
: Dislocation error of Compressor SUMP Temperature (oil temperature) Sensor ...............................466
4-4-47 : Suction Temperature sensor breakaway error ...........................................................................................467
4-4-48 SUMP Temperature Sensor Error (OPEN/SHORT) ....................................................................................................................468
4-4-49 High Pressure sensor error (Open/Short) ....................................................................................................................................469
4-4-50 Low Pressure sensor error (Open/Short) ..................................................................................................................................... 470
4-4-51 Suction Temperature sensor error (Open/Short) ..................................................................................................................... 471
4-4-52 Liquid Pipe Temperature sensor error (Open/Short) ............................................................................................................. 472
4-4-53 EVI In Temperature sensor error (Open/Short) ......................................................................................................................... 473
4-4-54 EVI Out Temperature sensor error (Open/Short) ......................................................................................................................474
4-4-55 Suction-2 Temperature Sensor Error (OPEN/SHORT) ............................................................................................................. 475
4-4-56
: Comp. Down due to High Pressure Protection Control ..........................................................................476
4-4-57 : Comp. Down due to Low Pressure Protection Control........................................................................... 477
4-4-58 Sump Sensor Error Due to Protection Control .......................................................................................................................... 478
4-4-59
: Comp. Down due to Compressor Discharge Temperature sensor .................................................... 479
4-4-60 3-phase Input Wiring error ................................................................................................................................................................480
4-4-61
: Comp. Down by Compression Ratio Control .............................................................................................481
4-4-62 EVI EEV Open error ................................................................................................................................................................................482
4-4-63 Refrigerant Leakage Error ..................................................................................................................................................................483
4-4-64
, : Prohibition of the operation of Compressor due to Ooutdoor Temperature .484
4-4-65 High Pressure Standard Not Met before Air Conditioning (Inability to Re-operate) ..............................................485
4-4-66 CCH Malfunction and Sump Sensor Miswiring Error .............................................................................................................486
4-4-67 Fan starting error ...................................................................................................................................................................................487
4-4-68 Fan lock error ...........................................................................................................................................................................................488
4-4-69 Momentary Blackout error ..............................................................................................................................................................489
4-4-70 Outdoor Fan Motor overheating .....................................................................................................................................................490
4-4-71 Outdoor Unit Fan Motor RPM Error ................................................................................................................................................ 491
4-4-72 Fan IPM Overheat error .......................................................................................................................................................................492
4-4-73 Over-Voltage Error of an Outdoor Fan Motor ............................................................................................................................493
4-4-74 Counter-Rotation Error of an Outdoor Fan Motor ..................................................................................................................493
4-4-75
: Compressor Excess Current Error .........................................................................................................................494
4-4-76 Compressor starting error ..................................................................................................................................................................495
4-4-77 Inverter Overcurrent error ..................................................................................................................................................................496
4-4-78 Overvoltage / Low voltage error .....................................................................................................................................................497
4-4-79 DC Link voltage sensor error .............................................................................................................................................................498
4-4-80 Liquid Compression Prevention Control .....................................................................................................................................499
4-4-81 Fan Motor Overcurrent error ............................................................................................................................................................500
4-4-82 Input / Output Current sensor error .............................................................................................................................................. 501
4-4-83 Outdoor Fan PCB Overvoltage / Low voltage error ...............................................................................................................502
4-4-84 Hall IC(Fan) error .....................................................................................................................................................................................503
4-4-85 Inverter Overheat error .......................................................................................................................................................................504
4-4-86 Model mismatching of Indoor unit. ..............................................................................................................................................505
4-4-87 Breakdown of an EEV(1
st
) ...................................................................................................................................................................506
4-4-87 Breakdown of an EEV closure ...........................................................................................................................................................507