Samsung AC026FBRDEH, Service Manual

Page: 3 / 72

2 Samsung Electronics
Contents
1 1. Precautions
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1-1
1-1 Precautions for the Service ............................................................................................................. 1-1
1-2 Precautions for the Static Electricity and PL ................................................................................ 1-1
1-3 Precautions for the Safety
...............................................................................................................
1-1
1-4 Disposing of the unit ...................................................................................................................... 1-2
1-5 Others ................................................................................................................................................ 1-2
1 2. Product Specifications
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2-1
2-1 The Feature of Product .................................................................................................................... 2-1
2-2 Specifications of Product ................................................................................................................ 2-2
2-3 Accessory and Option Specifications ........................................................................................................ 2-4
1 3. Disassembly and Reassembly
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3-1
3-1 Indoor Unit
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3-2
3-2 Outdoor Unit
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3-8
1 4. Troubleshooting
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4-1
4-1 Setting an indoor unit address and installation option ............................................................ 4-1
4-2 Things to check before diagnosis .................................................................................................. 4-8
4-2-1 Display Error Mode
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4-8
4-2-2 Troubleshooting for outdoor unit ....................................................................................... 4-9
4-2-3 Wired remote controller ....................................................................................................... 4-11
4-3 Fault Diagnosis by Symptom ......................................................................................................... 4-12
4-3-1 Indoor temperature sensor (open/short) .......................................................................... 4-12
4-3-2 Indoor Heat Exchange temperature sensor (open/short)
.............................................
4-13
4-3-3 Indoor Fan error ..................................................................................................................... 4-14
4-3-4 Communication error after completion of tracking ....................................................... 4-15
4-3-5 EEPROM circuit Part defect .................................................................................................. 4-15
4-3-6 When outdoor units cannot be turned on ....................................................................... 4-17
4-3-7 DC link and over/lower voltage error
................................................................................
4-18
4-3-8 IPM and over current error ................................................................................................... 4-19
4-3-9 Compressor starting error, compressor locking error, compressor revolving error ............... 4-21
4-3-10 Outdoor temperature sensor error .................................................................................. 4-22
4-3-11 Emission temperature sensor error .................................................................................. 4-23
4-3-12 Cond temperature sensor error
........................................................................................
4-24
4-3-13 Communication error between indoor/outdoor units (1min.) ................................... 4-25
4-3-14 Outdoor fan error ................................................................................................................ 4-26
4-3-15 Discharge current error/ PFC over-current error ........................................................... 4-28
4-3-16 Gas leakage error ................................................................................................................. 4-29
4-3-17 Other
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4-30
1 5. PCB Diagram and Parts List
...................................................................................................
5-1
5-1 PCB Diagram
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5-1
5-1-1 Indoor Unit .............................................................................................................................. 5-1
5-1-2 Outdoor Unit ........................................................................................................................... 5-2
1 6. Wiring Diagram
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6-1
6-1 Indoor Unit ......................................................................................................................................... 6-1
6-2 Outdoor Unit ..................................................................................................................................... 6-2
1 7. Schematic Diagram
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7-1
7-1 Indoor Unit ........................................................................................................................................ 7-1
7-2 Outdoor Unit ..................................................................................................................................... 7-2
8. Reference Sheet
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8-1
8-1 Index for Model Name ..................................................................................................................... 8-1
8-2 Refrigerating Cycle Diagram .......................................................................................................... 8-2
8-3 Pressure Graph .................................................................................................................................. 8-3