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Trouble Shooting

38

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EC18 : When the trouble is found on the part related to power system of indoor unit.

Check the connection wire of indoor and outdoor
and then replace indoor unit PCB

NO

YES

YES

YES

YES

YES

Replace fuse

NO

NO

NO

NO

No trouble on F101, F102, F701?

Is the voltage of pin no.1 and 3 of CN1
AC208V~AC230V?

After checking the correct connection between
indoor unit and outdoor unit, and check again

Check point :

- Indoor unit AC208V~AC230V input voltage, DC12V output, DC5V output, output voltage of pin no.2 and 3 of CN15.

- Power transformer, F101, F102, F701

DC12V output?

Check and replace IC02

No trouble on power
transformer AC output?

Check and replace IC101

Check and replace power
transformer

DC5V output?

No trouble on the power system and finish the test

DB81-00206A(3)-1 3/28/02 5:43 PM Page 38

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Содержание ACH2400C

Страница 1: ...lock Diagrams 6 Wiring Diagrams 7 Schematic Diagrams SERVICE Manual CASSETTETYPEAIRCONDITIONER Cool and Heat ACH2400C ACH2800C ACC2400C ACC2800C ACC4400C Type ICH2400C ICH2800C ICC2400C ICC2800C ICC44...

Страница 2: ...ation of the air conditioner 9 Close the cap of each valve 2 Turn the 3 way valve clockwise to close connect the pressure gauge low pressure side to the service valve and open the 3 way valve again 5...

Страница 3: ...ction pipes in the middle and store together with the cables 7 Move the indoor and outdoor units to a new locatioon 8 Remove the mounting plate for the indoor unit and move it to a new location Pump d...

Страница 4: ...the tabs on the grille IMPORTANT You must give attention when disassembling the front grille and must check the safety clips have been installed If you don t ensure them the front grille will drop sud...

Страница 5: ...component box cover removing the screws 3EA 6 Disconnect the two cables between the assembly and the panel Stepping motor connectors 6 1 Disconnect the three cables between the assembly and the panel...

Страница 6: ...the front panel using two hooks on the both sides of the indoor unit Do 1 2 3 and 4 above 1 Remove the screws 6EA on the electrical component box and remove the cover plates 2 Open the control box yyy...

Страница 7: ...ther end of the cable to the outdoor unit through the ceiling the hole on the wall between the control box and the assembly Do above 1 Disconnect FAN MOTOR wire connector thermistor wire connector dra...

Страница 8: ...nd motor 3 Disconnect float switch wire connected to terminal board F1 F2 4 Disconnect all connectors connected to PCB 5 Remove PCB s from assy case PCB 6 Remove the screws 9EA for disconnection of Be...

Страница 9: ...Disassembly and Reassembly 8 No Part name Procedures Picture Fan and motor Pump DB81 00206A 3 1 3 28 02 5 42 PM Page 8...

Страница 10: ...Disassembly and Reassembly 9 No Part name Procedures Picture Pump DB81 00206A 3 1 3 28 02 5 42 PM Page 9...

Страница 11: ...0 No Part name Procedures Picture Fan and motor 7 Seperate Bell mouth and Box Ass y from cushion drain 8 Loosen the nut and separate the assy holder fan 9 Lift down carefully the Ass y fan DB81 00206A...

Страница 12: ...e the wire holder fixed the bottom floor 11 Remove the screw fixed onto the bracket wire fixed on the bottom of product and remove screw fixed onto earth wire and separate carefully the ass y motor in...

Страница 13: ...Pump Do 1 2 3 above 1 For separation of Ass y cushion drain from the main body Cabinet guide A 2EA Cabinet guide B 1EA Remove each cabinet power cord Remove the obstacles of pump drain and ass y senso...

Страница 14: ...acket at each corner of cushion drain 3 Take out the CAP drain socket inserted in the ass y drain cushion to remove the condensate in the drain cushion Care must be taken for the taking out the conden...

Страница 15: ...tlet of pump drain 7 Separate from the BKT pump the pump drain separated from the main body from the BKT pump Do 1 4 1 Separate the partition front evap fixing the heat exchanger to the base of main b...

Страница 16: ...Disassembly and Reassembly 15 No Part name Procedures Picture 3 Separate holder guide evap 4 EA 4 Lift up the heat exchanger from the main body DB81 00206A 3 1 3 28 02 5 43 PM Page 15...

Страница 17: ...sembly 16 No Part name Procedures Picture Front panel Cover Front Do above Push 3 cover front fixing screws inside the front panel and snap fixing part to separate the cover front DB81 00206A 3 1 3 28...

Страница 18: ...the corner part cushion side A and cushion side B inside the front panel and then lift it up 2 Remove the screw of housing motor L R fixed at the corner part of front panel inside and separate Blade H...

Страница 19: ...el Bio pure filter Optional Do above Remove two screws fixing cushion A inside the front and lift it up Do 1 1 and 1 above 1 Separate the bio pure filter from the filter air remove 4 fixingscrews 2 Li...

Страница 20: ...ight to remove as it is a left turned screw 3 Disassemble the propeller fan Outdoor Unit 24K 28K No Part name Procedures Picture Cabinet Fan Motor Propeller Fan 1 Turn off the unit and remove the powe...

Страница 21: ...20 MEMO DB81 00206A 3 1 3 28 02 5 43 PM Page 20...

Страница 22: ...onnecting error In case of three phase power models REFERENCE PART EC01 EC02 EC03 EC04 EC05 EC06 EC07 EC08 ERROR CODE Reservation LED flickering 1Hz period Operation LED and reservation LED flickering...

Страница 23: ...with 1 Hz Action items when 5 displays on the wired remote controller 22 Indoor the indoor unit thermistor at CN8 NO YES YES Replace the indoor unit PCB NO Is the vlotage across the thermistor 4 9V a...

Страница 24: ...n items when 6 displays on the wired remote controller stands for the indoor unit address Install the outdoor unit thermistor at CN41 NO YES YES Replace the outdoor unit PCB NO Is the voltage across t...

Страница 25: ...lamp are flickering with 1 Hz Action item when 9 displays on the wireless remote controller 24 Replace PCB Check point Indoor unit defect Drain pump float switch defect YES YES NO NO YES YES YES Is av...

Страница 26: ...unit PCB defect Outdoor unit PCB defect stands for the indoor unit address NO YES YES NO NO YES Indoor unit communication normal The Micom of outdoor unit is operating normally check and replace the c...

Страница 27: ...or unit and wireless remote controller Indoor unit PCB defect Wired remote controller PCB defect 0 stands for the indoor unit address NO NO YES YES YES Connect correctly and check Connect correctly an...

Страница 28: ...with 1Hz Action item when D displays on the wired remote controller 27 Check point Indoor unit pipe thermistor available or not Indoor unit PCB defect stands for the indoor unit address NO NO YES YES...

Страница 29: ...ly YES YES NO NO YES Insert correctly Check the Mis insertion on CN76 Check the pin no 4 of IC51 IC52 IC53 does this make round type signal IC correct Take two connected lines to change the string of...

Страница 30: ...ss remote controller receiving board PCB Indoor unit PCB defect YES YES YES NO NO NO NO YES YES NO Insert correctly Mis insertion of CN9 LED direct reverse direction check Check no 1 and no 2 pin of C...

Страница 31: ...is reset Is the on off button command of wired remote controller reflected on the set When the power is applied again after removing the power at the operation on does the previous status display on t...

Страница 32: ...mal AC208 230 60Hz Is the wire harness for motor connection good Is the terminal contact of fan motor condenser good During the wind control does it change to breeze mild and strong wind Is he output...

Страница 33: ...motor condenser good Does the outdoor fan motor changes to mild and strong wind during the cooling operation Do the RY73 RY74 operate Normal Check and replace the micom Check and replace the relay Ch...

Страница 34: ...current one during the cooling operation Is the desired temperature set lower than the current one during the cooling operation Is the RY71 on and compressor operting when cooling mode operates and in...

Страница 35: ...PCB NO NO NO YES After check of the short circuit of harness for connecting the up and down swing motor operate the set in the cooling mode and oeprate the wind direction up and down and then perform...

Страница 36: ...RY72 NO Replace the indoor PCB Check to confirm whether the wire is connected correctly between indoor unit and outdoor unit After checking of the shortage for the connector wire between indoor unit a...

Страница 37: ...it normal Is the wire connected correctly between indoor unit and outdoor unit After check of short circuit on the wire between indoor unit and connector wire of float switch start the cooling operati...

Страница 38: ...lator Is the voltage of CN6 no 1 and 3 of indoor unit AC208V AC230V Is the output DC112V DC5V normal Is the wire correctly connected between indoor unit and outdoor unit after check of shot circuit be...

Страница 39: ...1 AC208V AC230V After checking the correct connection between indoor unit and outdoor unit and check again Check point Indoor unit AC208V AC230V input voltage DC12V output DC5V output output voltage o...

Страница 40: ...208V AC230V Check to confirm whether the wire is connected correctly between indoor unit and outdoor unit Check point Outdoor unit AC208V AC230V input power DC12V output DC5V output Power transformer...

Страница 41: ...e address assignment for the relay equipment connected with centralized controller Defect on centralized controller PCB Defect on the indoor unit PCB Reset the power of SET and check the status of LED...

Страница 42: ...41 MEMO DB81 00206A 3 1 3 28 02 5 43 PM Page 41...

Страница 43: ...ded Views and Part LIst 4 1 Indoor Unit 42 14 18 17 18 19 22 25 34 36 31 38 37 39 20 28 29 24 42 27 26 30 32 33 20 21 40 6 7 2 4 8 1 3 9 10 5 13 11 16 15 23 35 34 1 12 DB81 00206A 3 2 3 28 02 5 44 PM...

Страница 44: ...00022A PARTITION BACK EVAP SGCC M T0 8 ACC4400C 1 26 DB61 00453A HOLDER EVAP SGCCM T0 8 2 2 2 DB61 00131A HOLDER EVAP SGCCM T0 8 2 DB61 00142A HOLDER EVAP SGCCM T0 8 2 27 DB61 00573A GUIDE AIR EVAP S...

Страница 45: ...44 4 2 Panel Front Disassembly Diagram Panel Front 18 4 18 3 18 2 18 1 10 5 6 8 9 2 12 4 15 7 1 13 14 11 16 3 17 18 DB81 00206A 3 2 3 28 02 5 44 PM Page 44...

Страница 46: ...IRE MOTOR CONNECT WIRE MOTOR MOTOR STEPPING COVER OUT A COVER OUT B COVER OUT C PLATE HANGER FILTER AIR ASSY GRILLE IN GRILLE AIR INLET KNOB SLIDE SPRING KNOB COVER KNOB ASSY WIRED REMOTE CONTROL HIPS...

Страница 47: ...1 16 7 16 2 16 3 16 6 16 16 1 16 4 14 2 14 1 14 10 9 14 4 18 14 3 16 5 3 13 13 1 13 2 18 1 13 4 2 7 5 6 11 4 1 8 13 3 15 13 1 17 2 8 13 15 13 3 4 3 Outdoor unit UCH2400C 2800C UCC2800C 2400C DB81 002...

Страница 48: ...AL MOTOR MOTOR BASE MOTOR ASS Y MOTOR BKT ASS Y PARTITION ASS Y PARTITION ASS Y PARTITION ASS Y COND ASS Y COND ASS Y COND ASS Y COND ASS Y COVER CONTROL ASS Y CABI BACK CABINET SIDE ASS Y CABI UPPER...

Страница 49: ...48 Exploded views and parts list 27 7 2 1 1 8 1 25 26 9 11 13 11 1 11 2 24 23 12 1 12 2 5 10 12 15 1 22 3 4 6 16 14 15 21 18 17 20 19 UCC4400C DB81 00206A 3 2 3 28 02 5 44 PM Page 48...

Страница 50: ...71B ASSY COLLECTOR OUT UP ASS Y CI220T 0 1 12 DB96 01267A ASSY COND LOW WAVE 1 7 1 12 1 DB96 50073A ASSY COLLECTOR IN LOW ASS Y CI220T 0 1 12 2 DB96 50072B ASSY COLLECTOR OUT LOW ASS Y CI220T 0 1 13 D...

Страница 51: ...50 MEMO DB81 00206A 3 2 3 28 02 5 44 PM Page 50...

Страница 52: ...k Valve 3 Way Valve 3 Way Valve Indoor Unit Outdoor Unit Allowable pipe length Max 30m Allowable drop distance Max 15m Amount of refilling per extension length of 1m When extending the pipe length by...

Страница 53: ...ary Tube Check Valve 3 Way Valve 3 Way Valve Indoor Unit Outdoor Unit Allowable pipe length Max 30m Allowable drop distance Max 15m Amount of refilling per extension length of 1m When extending the pi...

Страница 54: ...it Allowable pipe length Max 30m Allowable drop distance Max 15m When extending the pipe length by more than 5m A gr of R 22 refrigerant should be refilled per extension length of 1m Refer to the tabl...

Страница 55: ...54 MEMO DB81 00206A 3 2 3 28 02 5 44 PM Page 54...

Страница 56: ...6 Wiring Diagrams 6 1 Indoor Unit ACH2400C ACH2800C ACC2800C ACC2400C ACC4400C 55 CODE NO DB68 02242A DB81 00206A 3 2 3 28 02 5 44 PM Page 55...

Страница 57: ...56 6 2 Outdoor Unit UCC2800C 2400C CODE NO DB68 02243A DB81 00206A 3 2 3 28 02 5 44 PM Page 56...

Страница 58: ...Wirning Diagram 57 UCH2800C UCH2400C CODE NO DB68 02244A DB81 00206A 3 2 3 28 02 5 44 PM Page 57...

Страница 59: ...58 Wirning Diagram UCC4400C CODE NO DB98 05375A DB81 00206A 3 2 3 28 02 5 44 PM Page 58...

Страница 60: ...Samsung Electronics 59 MEMO DB81 00206A 3 2 3 28 02 5 44 PM Page 59...

Страница 61: ...60 Samsung Electronics 7 Schematic Diagrams 7 1 Wired Remote Controller DB81 00206A 3 2 3 28 02 5 46 PM Page 60...

Страница 62: ...Samsung Electronics 61 7 2 Centralized Controller DB81 00206A 3 2 3 28 02 5 48 PM Page 61...

Страница 63: ...Samsung Electronics 63 7 3 Indoor Unit 62 Samsung Electronics...

Страница 64: ...Samsung Electronics 65 64 Samsung Electronics 7 4 Outdoor Unit UCC2400C UCC2800C UCC4400C...

Страница 65: ...Samsung Electronics 67 66 Samsung Electronics Outdoor Unit UCH 2800C UCH2400C...

Страница 66: ...68 Samsung Electronics MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 68...

Страница 67: ...ion please see the service website Itself Solution Integrated technology supporting electronic library http itself sec samsung co kr Copyright 2002 By Samsung Electronics Co Ltd All rights reserved Th...

Страница 68: ...70 Samsung Electronics MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 70...

Страница 69: ...Samsung Electronics 71 MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 71...

Страница 70: ...72 Samsung Electronics MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 72...

Страница 71: ...Samsung Electronics 73 MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 73...

Страница 72: ...74 Samsung Electronics MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 74...

Страница 73: ...Samsung Electronics 75 MEMO DB81 00206A 3 2 3 28 02 5 49 PM Page 75...

Страница 74: ...ELECTRONICS DB81 00206A 3 3 28 02 5 40 PM Page 1...

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