Samsung AC026RN1DKG Service Manual page 3

Contents
4-3-3 Indoor FAN error.................................................................................................. 4-23
4-3-4 Communication error after finishing Tracking ............................................. 4-24
4-3-5 Indoor unit float sensor error ............................................................................4-25
4-3-6 EEPROM circuit failure ....................................................................................... 4-26
4-3-7 E407 .........................................................................................................................4-27
4-3-8 When the outdoor unit power is not ON
4-3-9 Indoor/outdoor communication error (1min.) (Error Code : E202) ......... 4-32
4-3-10 Communication error between outdoor unit INV ↔ MAIN MICOM (1 min.)
(Error Code: E203) .............................................................................................. 4-34
4-3-11 Outdoor sensor error (Error Code : E221, E231, E251, E320) ..................... 4-35
4-3-12 Reverse phase / Loss phase detection (3-phase outdoor unit)
(Error Code : E425 ) ............................................................................................ 4-36
4-3-13 Compressor down due to freezing control (Error Code : E403) ...............4-37
4-3-14 Outdoor unit Fan error (Error Code : E458, E475) ..................................... 4-38
4-3-15 Compressor starting error / rotation error (Error Code : E461, E467) .... 4-39
4-3-16 Full current error / PFC over-current error (Error Code : E462, E484) ....4-41
4-3-17 IPM over current error (Error Code : E464) ................................................. 4-42
4-3-18 DC LINK over-current / low-voltage error (Error Code : E466)
H/W DC_Link Over Voltage Error (Error Code : E483)
AC Input Voltage Sensor Error (Error Code : E488) .................................. 4-45
4-3-19 Gas leakage error (Error Code : E554) .......................................................... 4-46
4-3-20 Pipe blockage error (Error Code : E422) ...................................................... 4-48
4-3-21 Smart install mode was not carried out (Error Code : E508 ) ................. 4-49
4-3-22 Others ................................................................................................................... 4-51
5. PCB Diagram and Parts List ..................................................................5-1
5-1 Indoor Unit ....................................................................................................5-1
5-1-1 MAIN PCB .................................................................................................................. 5-1
5-1-2 Display PCB ............................................................................................................ 5-11
5-1-3 Sub PCB ................................................................................................................... 5-14
5-1-4 BLDC PBA ............................................................................................................... 5-15
5-2 Outdoor Unit .............................................................................................. 5-16
5-2-1 MAIN PCB................................................................................................................ 5-16
5-2-2 INVERTER PCB .......................................................................................................5-18
6. Wiring Diagram .....................................................................................6-1
6-1 Indoor Unit ....................................................................................................6-1
6-2 Outdoor unit ................................................................................................ 6-9
7. Reference Sheet ....................................................................................7-1
7-1 Index for Model Name ..................................................................................7-1
7-1-1 Indoor Unit .................................................................................................................7-1
7-1-2 Outdoor Unit ............................................................................................................. 7-2
7-1-3 Panel .......................................................................................................................... 7-3
7-2 Refrigerating Cycle Diagram ...................................................................... 7-4
Samsung Electronics
- Initial Diagnosis : 3-phase products ........................................................... 4-28
Section 0
3