Samsung AM072BXV Series - Page 3

Contents
4. Troubleshooting .................................................................................................................. 63
4-1 Check-up Window Description .................................................................................................................63
4-2 Service Operation
.......................................................................................................................................64
4-2-1 Special Operation .......................................................................................................................................................................................64
4-2-2 DVM S Models EEPROM Code Table
...................................................................................................................................................71
4-2-3 Number Display M ethod (Outd oor Unit, MCU, Cable remote control, wall-mount, etc.) .........................72
4-3 Appropriate Measures for Different Symptom ...................................................................................... 78
4-3-1 Outdoor Unit Test Operation Flow......................................................................................................................................................78
4-3-2 Main PBA has no power phenomenon
............................................................................................................................................. 81
4-3-3
Communication Error between Indoor and Outdoor Units during Tracking .........................................82
4-3-4
Communication Error between Indoor and Outdoor Units after Tracking.............................................84
4-3-5 Communication error between main and sub Unit of outdoor unit or between outdoor units ....85
4-3-6
Internal Communication error of the Outdoor Unit C-Box ...............................................................................86
4-3-7
Internal PBA Communication error of the Outdoor Unit C-Box ...................................................................... 87
4-3-8
MCU branch part setup error – inconsecutive connection with the use of 2 branch parts...............88
4-3-9
MCU branch part setup error – Repeated setup for the same address over 3 times ............................89
4-3-10
MCU branch part setup error – non-installed address setup ........................................................................90
4 -3-11
Setup Error for MCU Branch part – Setup Error for MCU Quantity Used ..................................................91
4-3-12
MCU branch part setup error – Overlapping Indoor unit Address setup .................................................92
4-3-13
MCU branch part setup error – Set as being used without connection to an Indoor unit .............93
4-3-14
MCU branch part setup error – Connect an Indoor unit to a branch part not being used ..............94
4-3-15 MCU branch part setup error – Connect more Indoor units than what is actually set up in MCU 95
4-3-16 / MCU/MCU subcooler entrance/exit sensor error (Open/Short) ............................................96
4-3-17
Outdoor Temperature Sensor Error ..........................................................................................................................97
4-3-18
Cond Out Temperature Sensor Error (Open/Short) ...........................................................................................98
4-3-19
Outdoor Cond Out sensor breakaway error ..........................................................................................................99
4-3-20 / / / Compressor Discharge or
Top 1/2 Temperature sensor error ..................................................................................................................................................101
4-3-21 / / / Compressor Discharge or
Top temperature sensor breakaway error ................................................................................................................................. 102
4-3-22
: Suction Temperature sensor breakaway error .................................................................................................. 103
4-3-23
High Pressure sensor error (Open/Short) ............................................................................................................ 104
4-3-24
Low Pressure sensor error (Open/Short) ............................................................................................................. 105
4-3-25
Suction Temperature sensor error (Open/Short) ............................................................................................. 106
4-3-26
Liquid Pipe Temperature sensor error (Open/Short) ..................................................................................... 107
4-3-27
EVI In Temperature sensor error (Open/Short) ................................................................................................. 108
4-3-28
EVI Out Temperature sensor error (Open/Short) ............................................................................................. 109
4-3-29
Suction-2 Temperature Sensor Error (OPEN/SHORT) .......................................................................................110
4-3-30
Measures of other outdoor unit error ....................................................................................................................111
4-3-31
: Comp. Down due to High Pressure Protection Control ...............................................................................112
4-3-32
: Suspension of starting due to Compressor discharge temperature sensor /
Top temperature sensor ............................................................................................................................................................................... 113
4-3-33 3-phase Input Wiring error ......................................................................................................................................... 114
4-3-34
: Suspension of starting by abnormal compression ratio .............................................................................. 115
4-3-35
EVI EEV Open error ............................................................................................................................................................116
4-3-36
/ Refrigerant leakage error ....................................................................................................................117
4-3-37
/ Prevention of heating / cooling operation due to outdoor temperature ......................118
4-3-38
Prevention of heating refrigerant charge due to outdoor temperature ................................................ 119