Johnson Controls YJHJXH018BARR-FX Service Manual Download Page 1

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SERVICE MANUAL

Wall mounted Type

Order No.

YJHJXH018BARR-FX

FREE MATCH EK

YJHJYH018BARRA-X

indoor unit and remote controller

outdoor unit

Summary of Contents for YJHJXH018BARR-FX

Page 1: ...SERVICE MANUAL Wall mounted Type Order No YJHJXH018BARR FX FREE MATCH EK YJHJYH018BARRA X indoor unit and remote controller outdoor unit ...

Page 2: ...ns and control specifications of outdoor unit 21 5 3 Value of Thermistor 27 6 System Configuration 39 6 1 System Configuration 39 6 2 Instruction 39 7 Installations 50 65 9 Removal Procedure 80 9 1 Removal of Indoor Unit 80 9 2 The removal procedure of outdoor 92 10 Wiring Diagrams 105 10 1 Indoor Unit 105 10 2 Outdoor Unit 106 11 Circuit Diagrams 107 12 Description of Coding rules of Unit Model 1...

Page 3: ...re disassembling the equipment for a repair Working on the equipment that is connected to a power supply can cause an electrical shook If it is necessary to supply power to the equipment to conduct the repair or inspecting the circuits do not touch any electrically charged sections of the equipment If the refrigerant gas discharges during the repair work do not touch the discharging refrigerant ga...

Page 4: ...lder in an enclosed room can cause oxygen deficiency 1 1 2 Cautions Regarding Products after Repair Warning Be sure to use parts listed in the service parts list of the applicable model and appropriate tools to conduct repair work Never attempt to modify the equipment The use of inappropriate parts or tools can cause an electrical shock excessive heat generation or fire When relocating the equipme...

Page 5: ... refrigerant R 410A R22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results causing equipment damage and injury If the refrigerant gas leaks be sure to locate the leak and repair it before charging the refrigerant After charging refrigerant make sure that there is no refrigerant leak If the leak cannot be located and the repair work must be stopped...

Page 6: ...ion Check to see if the parts and wires are mounted and connected properly and if the connections at the soldered or crimped terminals are secure Improper installation and connections can cause excessive heat generation fire or an electrical shock If the installation platform or frame has corroded replace it Corroded installation platform or frame can cause the unit to fall resulting in injury Che...

Page 7: ...I AUTO Constant temperature dehumidification Avoid the child s wrong operation on the remote controller Sleep mode Catches most small particles and remove unpleasant odors effectively With twin blade technology the airflow can be adjusted not to blow directly The 3D airflow is able to deliver the airflow horizontally and vertically Use the timer function to set on or off or from on to off or from ...

Page 8: ... 1412 4 8 4 4127 4 1 6 1 2 0 10 15 25 0 2 4127 12 7 AS18GN3ERA 1U18EN2ERA 7 9 6 9 6 35 16 0 14 2 12 7 11 2 15 0 13 5 13 0 10 5 12 5 1016X304X360 938X187X265 55 52 48 55 3 Specifications 6 40 96 96 4 8 g n i t a e H g n i l o o C AS18GN3ERA YJHJZH018BARRAFX ＳＭ ...

Page 9: ...0 5 R410a 33 1176 5 33 1176 5 35 5 33 780X245X640 930X340X714 54 40 54 1U18EN2ERA 1 2 900 4 1 6 1 15 7 FV50S 1412 941 SNB130FGYMC L1 98 98 Specifications 5 m Propeller YJHJZH018BARRAFX ＳＭ ...

Page 10: ... motor 4 CON2 Connector for power N wire 5 CON1 Connector for power L 6 CON13 Connector for power GRN 7 CN32 Connector for display board 8 CON7 Connector for communicate between the indoor board and the outdoor board 9 CN34 Connector for long range control Note Other designations PCB 1 INdoor Control PCB 1 SW1 Connector for Forced operation ON OFF switch 2 SW2 1 Select remote code A or B 2 Select ...

Page 11: ...Connector Wiring Diagram Domestic Air Conditioner PCB 1 CN11 CN34 CN26 CON1 CN1 CON7 CN32 CON13 CON2 9 YJHJZH018BARRAFX ＳＭ ...

Page 12: ...ard 9 CN26 CN24 Connector to P and N of the module board 10 CN4 Connector for communicate between indoor and outdoor unit 11 CN16 Connector for electric expansion valves PCB 2 module PCB CN10 Connector for the DC power 5V and 15V form the control PCB CN11 Connector for communicate between the control board and the module board P CN1 N CN5 Connector for capacitance board LI CN7 LO CN6 Connector for...

Page 13: ...Connector Wiring Diagram Domestic Air Conditioner PCB 1 11 CN1 CN2 CN3 CN22 CN8 CN9 CN21 CN10 CN17 CN18 CN19 CN20 CN23 CN24 CN26 CN4 CN16 CN5 CN6 YJHJZH018BARRAFX ＳＭ ...

Page 14: ...Connector Wiring Diagram Domestic Air Conditioner PCB 2 CN1 CN2 CN3 CN4 CN5 CN6 CN7 CN11 CN10 12 YJHJZH018BARRAFX ＳＭ ...

Page 15: ... be opened the indoor fan will operate at the set speed and the mode signal will be sent to the outdoor system The system will keep the original status if Tr Ts Airflow speed control temperature difference 1ć Automatic When Tr Ts 3ć high speed When Ts 1ć Tr Ts 3ć medium speed When Tr Ts 1ć low speed When the sensor is off low speed When the airflow speed has no delay from the high to low switching...

Page 16: ...ensor is off or Tr Ts 3ć the manual operation can not be made obligatory automatic operation Airgate location control the location for the airgate can be set according to your needs Defrosting function preventing the frosting on the indoor heat exchanger when cooling or demoisture When the compressor works continuously for 1 6 minutes adaptable in EEPROM and the temperature of the indoor coils has...

Page 17: ... speed for 12 seconds If other conditions are satisified when the compressor stops the indoor system will operate at a light speed The indoor fan will stop when the coil temperature is below the heat start temp 4 Defrosting When the system receives the defrosting signal from outdoors the indoor fan will stop and the indoor temperature display won t change At the time any indoor coil malfunctions w...

Page 18: ...can set 24 hours on off timing accordingly After the setting the timing indicator will be lightened Also the light will be turning off after the timing is finished The followings are several timing methods 1 system on timing The timing indicator will be lightened and the indoor system is under the waiting mode The light will be turned off when the timing is finished and the rest of the system will...

Page 19: ...the display screen will show the resume of the last malfunction If the system is under operation the press on the urgency key will stop it Under the system off mode the display screen will show automatic running sign Under the system off mode the system will not receive the remote control signal if the press on the urgency key doesn t last for 15 seconds or if the key is loosened Urgency operation...

Page 20: ... is no code list The malfunction display will automatically finish in 10 seconds The remote control only receives the sigals for stop According to the signals the malfunction resume presentation finishes The resume restores after the power supply restores 5 1 15 abnormality confirmation approaches 1 indoor temperature sensor abnormality under the operation the normal temperature ranges from 120 de...

Page 21: ...ons the present status will be stored into the EEPROM of the indoor system Quitting conditions Press dormant button 10 times within 7 seconds and the buzzer will ring twice 5 1 18 Fixed frequency operation 1 Fixed cooling a under G code condition high speed cooling set 16ć press temperature key and the set key at the same time The system will enter the fixed frequency operation after the buzzer ri...

Page 22: ...d light turns to white the back ground light turns to white the background light turns to white the background light is fully lighted for 0 5 second LED screen lights for 0 5 second the step in motor fully output for 0 5 second then the motor doesn t output for 0 5 second the motor fully output again for 0 5 second The test program finishes 5 1 20 Time cutting function connect the test program ter...

Page 23: ...sor The speed of increasing or decreasing the frequency rapidly 1 1HZ second The speed of increasing or decreasing the frequency slowly 2 1HZ 10seconds 5 2 1 4 The calculation of the compressor s frequency 1 ǃThe minimum maximum frequency limitation AˊWhile refrigerating ˢˉ ˉ is the maximum operation frequency of the compressor ˢˉ INˉ is the minimum operation frequency of the compressor BˊWhile he...

Page 24: ...hen the healthy airflow has been set F F ED hPhK airflow speed hK healthy airflow When refrigerating it is needed to satisfy ˢˉ INˉ F ˢˉ ˉ When heating it is needed to satisfy ˢˉ INˉr F ˢˉ ˉr 5 2 2 The outdoor fan control exchange fan When the fan is changed among every airflow speed including stop blowing in order to avoid the airflow speed from skipping frequently it must be kept under each mode...

Page 25: ...teps When the outdoor unit is shut down the valve is opened completely for 2 minutes and then begin initialization The scope of refrigerationg valve 90 480 steps The scope of heating valve 60 480 steps The valves are adjusted according to the degree of superheat SHaˈƸSHa 5 2 4 Four way control For the details of defrosting four way valve control see the defrosting process Four way working in other...

Page 26: ...st 5 2 5 2 TC high temperature preventing control of the indoor heating unit Tpg_indoor is the highest value of the effective indoor unit start it and it is in accord with the running state The indoor heat exchanger sensor tests the temperature of the indoor heat exchanger If the temperature is higher than 48ć decrease the rotate speed of the compressor and do the high temperature preventing prote...

Page 27: ...t is greater than 15 5A the frequency of the compressor decreases at the speed of 0 1HZ second During the starting process of the compressor if the AC current is greater than 14 5A the frequency of the compressor increases at the prohibited speed During the starting process of the compressor if the AC current is greater than 13 5A the frequency of the compressor increases at the speed of no faster...

Page 28: ...e lower than 61ć relieve the defrosting temperature protection 5 2 5 8 Malfunction display and malfunction handling a ǃFor the complete appliance s malfunctions Annex 2 If there s malfunction with the outdoor unit the light of the outdoor unit will flash and its frequency is 1HZ the number of times is according to the table when a round of flashing is finished the light shoud be off for 5 seconds ...

Page 29: ... 8305 85 1031 1 80 1 64 21 97 6556 88 7989 80 6728 1 78 1 63 20 92 3028 84 0695 76 5017 1 76 1 62 19 87 2775 79 6222 72 5729 1 74 1 60 18 82 5577 75 4384 68 8710 1 72 1 59 17 78 1230 71 5010 65 3815 1 70 1 57 16 73 9543 67 7939 62 0907 1 68 1 55 15 70 0342 64 3023 58 9863 1 66 1 54 14 66 3463 61 0123 56 0565 1 64 1 52 13 62 8755 57 9110 53 2905 1 62 1 51 12 59 6076 54 9866 50 6781 1 60 1 49 11 56 ...

Page 30: ...9315 1 03 1 01 14 16 6711 15 9601 15 2657 1 01 0 99 15 15 9366 15 2770 14 6315 0 98 0 96 16 15 2385 14 6268 14 0271 0 96 0 94 17 14 5748 14 0079 13 4510 0 93 0 92 18 13 9436 13 4185 12 9017 0 91 0 90 19 13 3431 12 8572 12 3778 0 88 0 87 20 12 7718 12 3223 11 8780 0 86 0 85 21 12 2280 11 8126 11 4011 0 83 0 83 22 11 7102 11 3267 10 9459 0 81 0 80 23 11 2172 10 8634 10 5114 0 78 0 78 24 10 7475 10 4...

Page 31: ... 04 1 93 59 2 9909 2 7948 2 6092 2 08 1 97 60 2 8936 2 7012 2 5193 2 13 2 01 61 2 8000 2 6112 2 4328 2 17 2 05 62 2 7099 2 5246 2 3498 2 22 2 09 63 2 6232 2 4413 2 2700 2 26 2 13 64 2 5396 2 3611 2 1932 2 31 2 17 65 2 4591 2 2840 2 1195 2 36 2 21 66 2 3815 2 2098 2 0486 2 40 2 25 67 2 3068 2 1383 1 9803 2 45 2 29 68 2 2347 2 0695 1 9147 2 49 2 34 69 2 1652 2 0032 1 8516 2 54 2 38 70 2 0983 1 9393 ...

Page 32: ...48 0 7036 0 6303 4 34 3 92 105 0 7641 0 6845 0 6127 4 40 3 97 106 0 7441 0 6661 0 5957 4 46 4 02 107 0 7247 0 6482 0 5792 4 51 4 07 108 0 7059 0 6308 0 5632 4 57 4 12 109 0 6877 0 6140 0 5478 4 63 4 16 110 0 6700 0 5977 0 5328 4 69 4 21 111 0 6528 0 5820 0 5183 4 74 4 26 112 0 6361 0 5667 0 5043 4 80 4 31 113 0 6200 0 5518 0 4907 4 86 4 36 114 0 6043 0 5374 0 4775 4 92 4 41 115 0 5891 0 5235 0 464...

Page 33: ...12 1 49 1 40 6 43 5912 40 5800 37 7429 1 47 1 39 5 41 4249 38 6207 35 9739 1 45 1 37 4 39 3792 36 7676 34 2983 1 43 1 35 3 37 4465 35 0144 32 7108 1 41 1 33 2 35 6202 33 3552 31 2062 1 38 1 31 1 33 8936 31 7844 29 7796 1 36 1 29 0 32 2608 30 2968 28 4267 1 34 1 28 1 30 7162 28 8875 27 1431 1 32 1 26 2 29 2545 27 5519 25 9250 1 29 1 24 3 27 8708 26 2858 24 7686 1 27 1 22 4 26 5605 25 0851 23 6704 1...

Page 34: ...7 5 7007 1 21 1 18 39 6 0170 5 7454 5 4812 1 25 1 22 40 5 7997 5 5316 5 2712 1 29 1 25 41 5 5914 5 3269 5 0704 1 33 1 29 42 5 3916 5 1308 4 8783 1 37 1 33 43 5 2001 4 9430 4 6944 1 41 1 36 44 5 0163 4 7630 4 5185 1 45 1 40 45 4 8400 4 5905 4 3500 1 49 1 44 46 4 6708 4 4252 4 1887 1 53 1 47 47 4 5083 4 2666 4 0342 1 57 1 51 48 4 3524 4 1145 3 8862 1 61 1 55 49 4 2026 3 9686 3 7443 1 65 1 59 50 4 05...

Page 35: ... 2 97 84 1 3730 1 2525 1 1415 3 27 3 01 85 1 3335 1 2153 1 1066 3 32 3 06 86 1 2953 1 1794 1 0730 3 38 3 10 87 1 2583 1 1448 1 0405 3 43 3 15 88 1 2226 1 1113 1 0092 3 48 3 19 89 1 1880 1 0789 0 9789 3 53 3 24 90 1 1546 1 0476 0 9497 3 58 3 28 91 1 1223 1 0174 0 9215 3 64 3 33 92 1 0910 0 9882 0 8942 3 69 3 37 93 1 0607 0 9599 0 8679 3 74 3 42 94 1 0314 0 9326 0 8424 3 80 3 46 95 1 0030 0 9061 0 8...

Page 36: ...474 2 90 2 42 24 9687 0270 8074 3787 6724 1389 2 88 2 41 23 9057 2314 7564 2244 6311 6413 2 87 2 41 22 8472 2852 7089 4741 5927 0206 2 86 2 40 21 7928 7217 6647 4547 5568 2222 2 84 2 39 20 7423 3626 6235 7109 5233 3554 2 83 2 39 19 6953 2930 5851 9864 4920 6791 2 82 2 38 18 6515 8375 5494 2064 4628 5894 2 80 2 37 17 6108 5393 5160 4621 4355 6078 2 79 2 37 16 5729 1413 4848 9963 4100 3708 2 77 2 36...

Page 37: ...2 24 2 02 18 807 3024 723 4134 647 6580 2 22 2 00 19 766 4212 687 8205 616 7252 2 20 1 99 20 727 8172 654 1596 587 4271 2 18 1 98 21 691 3524 622 3161 559 6694 2 16 1 96 22 656 8979 592 1831 533 3634 2 14 1 95 23 624 3328 563 6604 508 4261 2 12 1 93 24 593 5446 536 6540 484 7796 2 10 1 92 25 564 4275 511 0760 462 3510 2 09 1 90 26 536 9865 486 9352 441 1516 2 07 1 89 27 511 0105 464 0500 421 0258 ...

Page 38: ...8443 99 7046 94 7315 1 28 1 23 63 100 6112 95 7939 91 1253 1 25 1 21 64 96 5692 92 0553 87 6735 1 23 1 19 65 92 7088 88 4805 84 3690 1 20 1 17 66 89 0211 85 0614 81 2048 1 18 1 15 67 85 4976 81 7908 78 1744 1 15 1 12 68 82 1303 78 6615 75 2715 1 13 1 10 69 78 9116 75 6668 72 4902 1 10 1 08 70 75 8343 72 8004 69 8249 1 08 1 06 71 72 8916 70 0561 67 2703 1 05 1 03 72 70 0770 67 4283 64 8213 1 03 1 0...

Page 39: ...08 20 3091 19 1582 18 0563 1 89 1 81 109 19 6899 18 5564 17 4723 1 93 1 85 110 19 0924 17 9761 16 9098 1 98 1 89 111 18 5157 17 4166 16 3680 2 02 1 93 112 17 9590 16 8769 15 8458 2 06 1 96 113 17 4214 16 3564 15 3427 2 10 2 00 114 16 9023 15 8542 14 8577 2 15 2 04 115 16 4010 15 3696 14 3902 2 19 2 08 116 15 9167 14 9020 13 9394 2 23 2 12 117 15 4489 14 4506 13 5047 2 27 2 16 118 14 9968 14 0149 1...

Page 40: ... 8 7441 8 0495 3 05 2 84 135 9 2322 8 4993 7 8175 3 09 2 88 136 8 9824 8 2623 7 5931 3 14 2 92 137 8 7404 8 0329 7 3760 3 19 2 96 138 8 5059 7 8108 7 1660 3 24 3 00 139 8 2787 7 5958 6 9629 3 29 3 04 140 8 0584 7 3875 6 7664 3 33 3 09 Funcitions and Control YJHJZH018BARRAFX ...

Page 41: ...39 YJHJZH018BARRAFX ＳＭ ...

Page 42: ...Domestic Air Conditioner 0 System Configration YJHJYH018BARRAFX SM 1 2 3 5 6 4 7 4 POWER SOFT button is not available for 07k 09k 12k ...

Page 43: ...e is below 16 o C do not use it in the Test operation Use this switch in the test operation when the room normal operation your finger from the switch the cooling Continue to press the test operation switch for more than 5 seconds After you hear the Pi sound twice release Test operation switch is the same as emergency switch operation starts with the air flow speed Hi Emergency operation and test ...

Page 44: ...ll become 2 lower than temp setting After another 1 hours temp decrease by 2 rises by 1 futher The unit will run for further 3 hours then stops Temp is lower than temp setting so that room temperature won t be too high for your sleep The unit operaters in corresponding sleep mode adapted to the automatically selected operation mode O C O C futher After more another 3 hours temp O C 1O C O C if use...

Page 45: ...pean parliament herewith we inform the consumer about the dis posal requirements of the electrical and electronic products conditioning system treatment of the refrigerant of oil and of other part must be done by a qualified installer in accordance with relevant local and national legislation Air conditioners must be treated at a specialized treatment facility for reuse recycling and recovery By e...

Page 46: ...r or flaping them lightly otherwise its performance will be affected the cool and dry conditions For Smart Use of The Air Conditioner Replacement of Air Purifying Filter The white side of the photocatalyst air purifying filter face outside and the black side face the unit The green side of the bacteria killing medium air purifying filter face outside and the white side face the unit Do not usewate...

Page 47: ...PROHIBITION Do not start or stop the operation by disconnecting Do not channel the air flow directly at people especially at infants or the aged Do not try to repair or reconstruct by yourself Do not use for the purpose of storage of food art work precise equipment breeding or cultivation CAUTION Take fresh air occasionally especially when gas appliance is running at the same time PROHIBITION STRI...

Page 48: ...onditioner immediately until 3 minutes have Cautions 3 If the fuse of indoor unit on PC board is it with the type of T 3 15A 250V outdoor broken change it with the type of T 25A 250V Do not obstruct or cover the ventilation conditoner Do not put fingers inlet outlet and swing louver Do not allow children to play with the air conditioner case should children be allowed to sit on the outdoor unit Th...

Page 49: ...r unit ƽ Place where cold air can be spread in a room entirely ƽ Place nearby a power receptacle with enough space around ƽ Place where the distance of more than lm from televisions radios wireless apparatuses and Àuorescent lamps can be left ƽ In the case of xing the remote controller on a wall place where the indoor unit can receive signals when the Àuore scent ƽ lamps in the room are lightened ...

Page 50: ...n hose then fasten them with the adhesive tape Left Left rear piping In case of left side piping cut away with a nipper the lid for left piping In case of left rear piping bend the pipes according to the piping direction to the mark of hole for left rear piping which is marked on heat insulation materials 1 Insert the drain hose into the dent of heat insulation materials of indoor unit 2 Insert th...

Page 51: ... clutch type Rigid type Wing nut type Imperial type A 0 0 5mm 1 0 1 5mm 1 5 2 0mm rth leakage breaker Lean Damage of Àare Partial Too outside Correct Incorrect On Drainage It becomes high midway The gap with the ground is too small There is the bad smell from a ditch It waves The end is imm ersed in water Please install the drain hose so as to be downward slope without fail Please don t do the dra...

Page 52: ...gerant charge on the refrigerant charge label supplied with the product The filled out label must be adhered in the proximity of the product charging port e g onto the inside of the stop value A contains fluorinated greenhouse gases covered by the Kyoto Protocol B factory refrigerant charge of the product see unit name plate C additional refrigerant amount charged in the field D total refrigerant ...

Page 53: ... by attaching a vibration proof mat The marks from to in the gure are the parts numbers The distance between the indoor unit and the Àoor should be more than 2m The models adopt HFC free refrigerant R410A more than 10cm more than 15cm more than 10cm more than 20cm more than 20cm more than 25cm more than 60cm A G ƽ ƽ A F C E D G B Arrangement of piping directions Rear left Left Rear right Right Bel...

Page 54: ...WARNING CAUTION Installation Domestic air conditioner 52 Safety Precautions YJHJZH018BARRAFX ＳＭ ...

Page 55: ...Installation Domestic Air Conditioner 53 Safety Precautions YJHJZH018BARRAFX ＳＭ ...

Page 56: ...Installation Domestic Air Conditioner 54 Safety Precautions Precautions for Handing Units for with R410A YJHJZH018BARRAFX ＳＭ ...

Page 57: ...Installation 55 Domestic Air Conditioner Safety Precautions YJHJZH018BARRAFX ＳＭ ...

Page 58: ...Installation Domestic Air Conditioner 56 Read Before Installation YJHJZH018BARRAFX ＳＭ ...

Page 59: ...Installation Domestic Air Conditioner 57 Read Before Installation YJHJZH018BARRAFX ＳＭ ...

Page 60: ...Installation Domestic Air Conditioner 58 Read Before Installation YJHJZH018BARRAFX ＳＭ ...

Page 61: ...ushion rubber 4 Installation dimension Unit mm Installation Domestic Air Conditioner 59 Installation Procedure 1U18EN2ERA Model 1U09BS2ERA 1U12BS2ERA W D H L1 L2 L3 Power Wiring Terminal Power Wiring Distribution YJHJZH018BARRAFX ＳＭ ...

Page 62: ...efrigerant must be conducted by professional air conditioner engineer Before adding additional refrigerant perform air purging from the refrigerant pipes and indoor unit using a vacuum pump then Spanner Forced fastening without careful centering may damage the threads and cause a leakage of gas Pipe Diameter Ǜ Fastening torque Liquid side6 35mm 1 4 18N m Liquid Gas side9 52mm 3 8 42 N m Gas side 1...

Page 63: ...Installation Domestic Air Conditioner 61 Installation Procedure Air Tightness Test YJHJZH018BARRAFX ＳＭ ...

Page 64: ... e g 1U18EN2ERA Installation Domestic air conditioner 62 YJHJZH018BARRAFX ＳＭ ...

Page 65: ... Indoor unit 1U09BS2ERA 1U12BS2ERA Model Connecting wiring Power cable 3G2 5mm2 3G1 5mm2 4G0 75mm 2 4G0 75mm 2 N 1 3 C L 2 L N POWER Outdoor unit To Indoor unit Outdoor unit POWER FOR 09K 12K FOR 18K Installation Domestic air conditioner 63 1U18EN2ERA YJHJZH018BARRAFX ＳＭ ...

Page 66: ... 6 25 25 25 110 Suction temperature sensor failure When the The wiring of compressor is wrong or the connection is poor 17 16 15 Lack of refrigerant Check if there is leakage in the unit m Installation Domestic air conditioner 64 YJHJZH018BARRAFX ＳＭ ...

Page 67: ... make sure that the indoor PCB is broken Operation sometimes stops Check the power supply A power failure of 2 to 10 cycles can stop air conditioner operation Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the liquid side connection pipes of the connection section among rooms to check the opening and closing operation...

Page 68: ...3 Overcurrent protection of AC electricity for the outdoor model Page 72 F3 4 Communication fault between the IPM and outdoor PCB Page 73 F19 6 Power voltage is too high or low Page 74 F27 7 Compressor is lockrotor or stopt momentary F4 8 Overheat protection for exhaust temperature Page 75 F8 9 Outdoor fan motor malfunction Page 72 F21 10 Frost removing temperature sensor failure Page 74 F7 11 Suc...

Page 69: ... 08V during compressor n o i t a r e p o n o i s i c e D Conditions Note The values vary slightly in some models Supposed Faulty connector connection Causes Faulty thermistor Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Thermistor resistance check method Remove the connector of the thermistor on the ...

Page 70: ...determine MCU Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Ŷ Faulty EEPROM data Causes Ŷ Faulty EEPROM Ŷ Faulty PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or parts damage may be occurred Replace the indoor or outdoor mainboard Domestic Air Conditioner YJHJZH018BARRAF...

Page 71: ...hooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Domestic Air Conditioner Check whether terminals on indoor pcb is well Electrify the machine again and turn it on in the cooling operation Measure voltage between the positions 1and 3 of Terminal CN5 on the indoor PCB the voltage is about 90 220vac check whether motor can ru...

Page 72: ...een 3 and 4 of the terminal about DC15V Measure the voltage between 5 and 3 of the terminal about 1 6v NO Is it normal The mainboard of the outdoor unit is damaged and needs replacing N0 Yes Yes r e n o i t i d n o C r i A c i t s e m o D 0 7 Outdoor display LED1 flash 9 times Method of DC fan motor is detected by checking the fan running condition and so on Malfunction Detection Malfunction when ...

Page 73: ...ssor wiring disconnected Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing 1ǃThe system may have been over or under charged with ...

Page 74: ...n off power switch before connect or disconnect connector or parts damage may be occurred Electrify the machine again and turn it on with the remote controller If malfunctions are reported before or upon the compressor being started up IPM Module is damaged and needs replacing Repair the power supply the system may have been over or under charged with gas which can be judged through the pressure o...

Page 75: ...e to turn off power switch before connect or disconnect connector or else parts damage may be occurred 1 Check whether Terminal CN23 and CN24 on the outdoor mainboard CN10 and CN11 on IPM module 2 Check whether the connected wire between IPM and outdoor Are they good Electrify the machine again and turn it on Check whether the voltage between 1 and 2 of Terminal CN23 is about DC5V Check whether th...

Page 76: ...the IPM module is broken Ŷ the outdoor PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller Check whether the compressor is started normally Is it ok Yes Maybe there is some disturbance NO No 230 is ok Yes Yes This question may be cause...

Page 77: ... it on with the remote controller then measure the temperature at the exhaust temperature sensor of the compressor on the outdoor unit the temperature exceeds 110 ć shortly after the machine starts up 1 The cryogen may have been leaked during installation or there may be leakage in the piping system 2 There may be other causes to make the exhaust temperature too high Malfunctions occur after runni...

Page 78: ...roken Ŷ The outdoor PCB is broken Ŷ The Module PCB is broken Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred NO A Yes NO Yes No YES Restart the a c and it becomes normally If starting up normally but malfunction occurs again after a while Check whether the linking cable between the indoor and outdoor is well conne...

Page 79: ...ot the power module is damaged replace it with a new one Test the outdoor power supply 230VAC and 310VDC with a multimeter The outdoor mainboard is damaged replace it with a new one The indoor mainboard is damaged replace it with a new one If the value varies between 0 and 80 VAC the outdoor mainboard is damaged replace it with a new one If the value is constant at about 30V the indoor mainboard i...

Page 80: ...off power switch before connect or disconnect connector or parts damage may be occurred Within 3 minutes after the machine is supplied with power and turned on with the remote controller check whether the compressor can stard up 1 The wiring of compressor is incorrect or the connection is poor 2 The compressor is damaged At frist the compressor start up soon the compressor stopped with the LED1 on...

Page 81: ...cient gas Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Electrify the machine again and turn it on with the remote controller check whether the wind temperature is below 65ć the malfunction is reported after the machine has run for some time 1 ǃ Check room temperature and pipe temperature sensor 2ǃ the temperatu...

Page 82: ...Removal Procedure Removal of indoorunit 80 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 83: ...81 Domestic Air Condiioner YJHJZH018BARRAFX ＳＭ ...

Page 84: ...e Slide the front panel from one side to another to release each axis Open the front panel until it is on the horizontal position and then release the pivots on both sides of the unit to remove the front panel Removal Procedure 82 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 85: ...three two Removal Procedure HOOKS 83 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 86: ...flap flap flap flap Removal Procedure 84 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 87: ...Removal Procedure 85 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 88: ...Removal Procedure 86 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 89: ...Removal Procedure 87 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 90: ...Removal Procedure 88 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 91: ...Removal Procedure 89 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 92: ...Removal Procedure 90 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 93: ...Removal Procedure 91 Domestic Air Conditioner YJHJZH018BARRAFX ＳＭ ...

Page 94: ...val of procedure 9 2 The removal procedure of outdoor 9 2 1 Removal of Outdoor panel s t n i o P e r u d e c o r P p e t S 1 Features 1 Loosen the service cover screw and remove the service cover Be careful not to YJHJZH018BARRAFX ＳＭ ...

Page 95: ...nditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 2 Remove the panels 1 Loosen the 4 screws and lift the top panel 2 Loosen the screws of the panel 3 Pull and remove the front panel YJHJZH018BARRAFX ＳＭ ...

Page 96: ...94 Domestic air conditioner Removal of procedure 9 2 2 Romoval of Electrcal Box s t n i o P e r u d e c o r P p e t S screws then lift the electrical box YJHJZH018BARRAFX ＳＭ ...

Page 97: ...95 Domestic air conditioner Removal of procedure 9 2 3 Romoval of the Side panel s t n i o P e r u d e c o r P p e t S 1 screws and remove the side panel YJHJZH018BARRAFX ＳＭ ...

Page 98: ...96 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 2 Remove the 3 screws and remove the side panel YJHJZH018BARRAFX ＳＭ ...

Page 99: ...ic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 1 Loosen the remove the fan Put the lead wire of motor when the propeller fan 9 2 4 Removal of fan and fan motor YJHJZH018BARRAFX ＳＭ ...

Page 100: ...98 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 2 screws and lift the fan motor YJHJZH018BARRAFX ＳＭ ...

Page 101: ...99 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 3 screws then lift the YJHJZH018BARRAFX ＳＭ ...

Page 102: ...100 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 4 screws then lift the proof plate YJHJZH018BARRAFX ＳＭ ...

Page 103: ...101 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 1 Cut down the and pull out the compressor and remove the YJHJZH018BARRAFX ＳＭ ...

Page 104: ...102 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 2 YJHJZH018BARRAFX ＳＭ ...

Page 105: ...103 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 3 YJHJZH018BARRAFX ＳＭ ...

Page 106: ...104 Domestic air conditioner Removal of procedure s t n i o P e r u d e c o r P p e t S 4 Remove the YJHJZH018BARRAFX ＳＭ ...

Page 107: ... 7 211 725 6RFNHW FRQQHFWRU PDUNHG ZLWK KDV ORFN FDWFK ZKHQ UHPRYLQJ SUHVV WKH ORFN FDWFK DQG SXOO 5 52 1 8 LW EDFNZDUG Double way air exchange 1 2 7 21 5 5 5 21 21 21 21 21 21 5 21 21 7 9 1 1 21 1 5 725 1 21 5 1 1 1 02725 63 2 5 1 5RRP DUG 63 3 1 1 1 1 3 3 1 7 03 6 1625 0 17 7 03 6 1625 SW ITCH EM ERGENRY 6 1 6 02725 289 5 21 21 21 21 21 1 1 225 81 7 5 0 YJHJZH018BARRAFX ＳＭ ...

Page 108: ... 2 5 1 25 25 1 Remark the dotted parts are optional for different unit WR GRXEOH ZD DLU H FKDQJH PRWRU DLU H FKDQJH PRWRU WR VLQJOH ZD 5267 7 03 6 1625 TEMP SENSOR TEMP SENSOR 2035 6625 6 5 7 03 6 1625 1 02725 1 9 FUSE2 1 OHFWULF HDWLQJ DEOH TO INDOOR UNIT 7 50 1 2 32 5 1 HVFULSWLRQ ODVK 7LPHV 2XWGRRU 3520 HUURU 7KH SURWHFWLRQ RI 30 RPPXQLFDWLRQ IDXOW 2YHUFXUUHQW SURWHFWLRQ 2YHUKHDW SURWHFWLRQ IRU...

Page 109: ... 50 P0_1 AN6 51 P0_2 AN5 52 P0_3 AN4 53 P0_4 AN3 54 P6_2 55 P6_1 56 P0_5 AN2 CLK1 57 P0_6 AN1 DA0 58 VSS AVSS 59 P0_7 AN0 DA1 60 VREF 61 VCC AVCC 62 P3_7 SSO 63 P3_5 SCL SSCK 64 IC2 R5F212A7SNFA MODE 5V RST MODE 5V DIGH DIGL R32 10K SCL SDA DIG_MODE DIG_MODE 1 2 JP3 TJC8 02 1 2 JP2 TJC8 02 5V C45 0 1uF 15V R39 1K R58 2 7K R61 390ȍ VS R64 10K R59 10K R68 10K IC3 TLP421 TLP421 1 2 4 3 IC7 TLP421 15V...

Page 110: ...ERROR 1 2 3 CN17 D5 LL4148 D6 LL4148 Yellow Green 1 2 CN32 TEST SS GND 1 2 CN11 12V J1 J2 J3 J6 5V 5V J7 12V 12V J8 R91 10K J9 J10 C19 104 50V J15 J16 15V 15V J13 J14 J12 R92 0 R93 0 R94 0 J17 J19 J23 L2 8MH 10A R2 1M CX3 225 275V CY5 472 250V 275V CY6 472 250V 275V J24 J25 J26 J27 J28 J29 J30 J31 J32 J33 N P P N 1 2 CN36 White Black R86 4 7K K6 12V 5A 892H N 1AC C D11 LL4148 N5 2SC2412K R89 10K J...

Page 111: ... C 203 104 C 207 104 C 208 104 IC 5 H A17393AF IC 6 H A1630D 06 IC 6 H A1630D 06 R 221 140 R 216 10 R 224 4 7K R 211 1K R 212 9 1K R 209 1K R 223 330 R 210 6 8K R 214 100 R 207 1K 5V T R1 M M BT 9013 5V 15V IC 7 T LP251 2 3 5 6 8 4 8 5 6 7 R 015 330 R 208 6 8K R 014 330 R 013 330 R 018 4 7K R 016 1K R 012 4 7K R 011 4 7K R 008 4 7K R 019 4 7K R 213 100 1 2 3 4 5 6 7 8 IC 4 H A1630D 06 IC 4 H A1630...

Page 112: ...The end Sincere Forever YJHJZH018BARRAFX ＳＭ ...

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