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Contents
4-3-15 Cond Out Temperature Sensor Error (Open/Short) .................................................................. 4-24
4-3-16 Outdoor Cond Out sensor breakaway error ................................................................................ 4-25
4-3-17 Compressor Discharge or Top 1/2 Temperature sensor error .............................................. 4-27
4-3-18 Compressor Discharge or Top temperature sensor breakaway error ............................... 4-28
4-3-19
4-3-20 High Pressure sensor error (Open/Short) ..................................................................................... 4-30
4-3-21 Low Pressure sensor error (Open/Short) ....................................................................................... 4-31
4-3-22 Suction Temperature sensor error (Open/Short) ....................................................................... 4-32
4-3-23 Liquid Pipe Temperature sensor error (Open/Short) ............................................................... 4-33
4-3-24 EVI In Temperature sensor error (Open/Short) ........................................................................... 4-34
4-3-25 EVI Out Temperature sensor error (Open/Short) ....................................................................... 4-35
4-3-26 Suction-2 Temperature Sensor Error (OPEN/SHORT) ................................................................ 4-36
4-3-27 Measures of other outdoor unit error ............................................................................................. 4-37
4-3-28
4-3-29
4-3-30
4-3-31 3-phase Input Wiring error ................................................................................................................... 4-43
4-3-32
4-3-33 EVI EEV Open error .................................................................................................................................. 4-45
4-3-34 Refrigerant leakage error ..................................................................................................................... 4-46
4-3-35 Prevention of heating / cooling operation due to outdoor temperature....................... 4-47
4-3-36 Prevention of heating refrigerant charge due to outdoor temperature ......................... 4-48
4-3-37 CH wire breaking error .......................................................................................................................... 4-49
4-3-38 Fan starting error ...................................................................................................................................... 4-51
4-3-39 Fan lock error ............................................................................................................................................. 4-53
4-3-40 Momentary Blackout error ................................................................................................................ 4-54
4-3-41 Outdoor Fan Motor overheating ....................................................................................................... 4-55
4-3-42 Fan IPM Overheat error ........................................................................................................................ 4-56
4-3-43 Compressor starting error .................................................................................................................... 4-57
4-3-44 Inverter Overcurrent error .................................................................................................................... 4-59
4-3-45 Overvoltage / Low voltage error ....................................................................................................... 4-62
4-3-46 DC Link voltage sensor error .............................................................................................................. 4-63
4-3-47 Fan Motor Overcurrent error ............................................................................................................... 4-64
4-3-48 Input / Output Current sensor error ............................................................................................... 4-65
4-3-49 Outdoor Fan PCB Overvoltage / Low voltage error ................................................................. 4-66
4-3-50 Hall IC(Fan) error ....................................................................................................................................... 4-67
4-3-51 Inverter Overheat error ........................................................................................................................ 4-68
4-3-52 Option setting error of outdoor unit ............................................................................................... 4-69
4-3-53 Model mismatching of Indoor unit. ................................................................................................. 4-70
4-3-54 Error due to using single type outdoor unit in a module installation ............................... 4-71
4-3-55 Indoor unit and MCU address duplication error ......................................................................... 4-72
5. PCB Diagram and Parts List ....................................................................5-1
5-1 ASS'Y PCB MAIN ..........................................................................................................................................................5-1
5-2 ASS'Y PCB INVERTER ................................................................................................................................................5-4
5-3 ASS'Y PCB EMI.............................................................................................................................................................5-6
5-4 SUB-COMM ..................................................................................................................................................................5-7
Samsung Electronics
: Suction Temperature sensor breakaway error ............................................... 4-29
: Comp. Down due to High Pressure Protection Control ............................. 4-38
: Comp. Down due to Low Pressure Protection Control .............................. 4-40
Top temperature sensor....................................................................................................................... 4-42
: Suspension of starting by abnormal compression ratio ............................ 4-44
Section 0
3
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