Samsung AM056FN2DEH Series, Service Manual, Page: 4 / 670

Contents
■
4Way Cassette type(600x600) ....................................................................................................................................................................348
■
AM022/028/036/045/056/071ANMPKH/EU ........................................................................................................................................... 351
■
AM090ANMPKH/EU, AM056/071/090ANHPKH/EU ............................................................................................................................356
■
AM112AN*PKH/AM128AN*PKH/140AN*PKH/EU ................................................................................................................................360
4. Troubleshooting ..................................................................................................................................................364
4-1 Check-up Window Description ...............................................................................................................364
4-2 Service Operation ....................................................................................................................................365
4-2-1 Special Operation......................................................................................................................................................................................365
4-2-2 DVM S Models EEPROM Code Table .................................................................................................................................................369
4-3 Troubleshooting .......................................................................................................................................370
4-3-1 Setting Option Setup Method ............................................................................................................................................................ 370
4-3-2 Option Items ...............................................................................................................................................................................................386
4-3-3 What to check before diagnosis .........................................................................................................................................................400
4-3-4 Number Display Method (Outdoor Unit, MCU, Cable remote control, wall-mount, etc.) .........................................416
4-4 Appropriate Measures for Different Symptom ....................................................................................422
4-4-1 Outdoor Unit Operation Flow .............................................................................................................................................................422
4-4-2 Main PCB has no power phenomenon ...........................................................................................................................................423
4-4-3 Indoor Unit ROOM sensor Error (Open/Short)............................................................................................................................. 424
4-4-4 Indoor unit EVAP IN sensor Error (Open/Short) ..........................................................................................................................425
4-4-5 Indoor EVAP OUT sensor Error (Open/Short) ............................................................................................................................... 426
4-4-6 Indoor Heat Exchanger's EVAP IN sensor dislocation error ................................................................................................... 427
4-4-7 Indoor Heat Exchanger's EVA OUT sensor dislocation error (Open/Short) ..................................................................... 428
4-4-8 Simultaneous Indoor Heat Exchanger's EVA IN, OUT sensor dislocation error (Open/Short) .........................429
4-4-9 Electronic Expansion Valve opening malfunction (2nd stage) -
..............................................................430
4-4-10 Breakdown of EEV (2
nd
) ....................................................................................................................................................................... 431
4-4-11 Problem with EEV closure (2
nd
) ........................................................................................................................................................ 432
4-4-12 EEV(Electronic Expansion Valve) opening malfunction (2nd stage) ............................................................................... 433
4-4-13
: EEV(Electronic Expansion Valve) closure malfunction (2nd stage) ...................................................434
4-4-14 : Detection of Floating Switch of Indoor Unit's Drain Pump ................................................................... 435
4-4-15 The operational error of Indoor Unit's Fan Motor ....................................................................................................................436
4-4-16 Mixed operation Error (Only applicable to Heat Pump Model/Not to HR model) .................................................... 437
4-4-17 EEPROM error ..........................................................................................................................................................................................438
4-4-18 Option error of the Remote Controller for an Indoor Unit .................................................................................................. 439
4-4-19 Error due to confused use of Fahrenheit and Celsius ............................................................................................................ 439
4-4-20 Simultaneous opening of Cooling/heating MCU SOL Valves 1
st
/2
nd
............................................................................440
4-4-21 Error due to incorrect Indoor Unit Power/Communication Cable Connection ..........................................................441
4-4-22 SPI Feedback Error .................................................................................................................................................................................442
4-4-23 Outdoor Unit Pipe Inspection Error ...............................................................................................................................................443
4-4-24 Communication Error between Indoor and Outdoor Units during Tracking ..............................................................444
4-4-25 Communication Error between Indoor and Outdoor Units after Tracking ..................................................................445
4-4-26 Communication error between main and sub Unit of outdoor unit or between outdoor units .......................446
4-4-27 Communication Error between MCU and Outdoor Unit .....................................................................................................447
4-4-28 Internal Communication error of the Outdoor Unit C-Box ..................................................................................................448
4-4-29 Internal PCB Communication error of the Outdoor Unit C-Box.........................................................................................449
4-4-30 Communication Error between MCU and Outdoor Unit after Tracking is Completed ...........................................450
4-4-31 MCU branch part setup error – inconsecutive connection with the use of 2 branch parts.................................. 451
4-4-32 MCU branch part setup error – Repeated setup for the same address over 3 times............................................... 452
4-4-33 MCU branch part setup error – non-installed address setup ............................................................................................. 453
4-4-34 Setup Error for MCU Branch part – Setup Error for MCU Quantity Used ......................................................................454
4-4-35 MCU branch part setup error – Overlapping Indoor unit Address setup ..................................................................... 455