Samsung AC250KXAPNH - 1. Precautions

Contents
11. Precautions .......................................................................................................................................... 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 Others .................................................................................................................................................. 1-1
12. Product Specifications .................................................................................................................. 2-1
2-1 The Feature of Product .................................................................................................................... 2-1
2-2 Product Specifications ..................................................................................................................... 2-2
2-3 Accessory ........................................................................................................................................... 2-4
3. Disassembly and Reassembly ................................................................................................... 3-1
3-1 Indoor Unit ......................................................................................................................................... 3-2
3-2 Outdoor Unit ..................................................................................................................................... 3-14
4. Trouble shooting .............................................................................................................................. 4-1
4-1 Wired remote controller .................................................................................................................. 4-1
4-2 Outdoor Trouble shooting
............................................................................................................. 4-4
4-3 Troubleshooting by symptoms
...................................................................................................... 4-7
4-3-1 Indoor temperature sensor (open/short) .................................................................................... 4-7
4-3-2 Eva in and out sensor (open/short) ............................................................................................... 4-8
4-3-3 Float switch(Open) ................................................................................................................................ 4-9
4-3-4 Fan error .................................................................................................................................................... 4-10
4-3-5 EEPROM error .......................................................................................................................................... 4-11
4-3-6 Option error ............................................................................................................................................. 4-12
4-3-7 Terminal Block's Terminal Fuse(Open) .......................................................................................... 4-13
4-3-8 Communication error after finishing tracking (E202) ............................................................ 4-14
4-3-9 Outdoor's service valve(Clog) .......................................................................................................... 4-15
4-3-10 No Power(completely dead) - Initial diagnosis ...................................................................... 4-16
4-3-11 E102 : Communication error between indoor and outdoor unit
E201 : Unit quantity miss matching beween Indoor and Outdoor
E202 : Abnormal state, no communication between Indoor and Outdoor Main PCB
E203 : 1min Time out of communication error(MainInverter) ...................................... 4-20
4-3-12 External Sensor Error (Error Code: E221, E231, E251, E320) .............................................. 4-21
4-3-13 E403 : Freezing control causes comp. down ........................................................................... 4-22
4-3-14 E416 : Dischage temperature sensor error ............................................................................... 4-23
4-3-15 E440, E441 : Abnormal outside temperature halts operation of the compressor ... 4-24
4-3-16 Outdoor unit BLDC Fan1 or Fan2 error (E458 : Fan1 error, E475 : Fan2 error) ........... 4-25
4-3-17 E461: Compressor start error
E467: Compressor wire missing error ........................................................................................ 4-26
4-3-18 E462 : Current protection control causes comp. down
E484 : PFC overload errorr .............................................................................................................. 4-27
4-3-19 E463 : OLP protection control caused comp. down ............................................................. 4-28
4-3-20 E464 : O.C. (Over Current) error ..................................................................................................... 4-29
4-3-21 E466: DC Link Over voltage/ Low voltage error ..................................................................... 4-30
4-3-22 Pipe Blocking Error (Error Code: E422) ....................................................................................... 4-31