York YJHMXH007BARR-FX Service Manual Download Page 45

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Service diagnosis

Domestic Air Conditioner

6.3.1 Thermistor or Related Abnormality

Indoor Display E1: Room temperature sensor failure

E2: Heat-exchange sensor failure

Outdoor display LED1 flash 10 times

Defrost temperature sensor failure

LED1 flash 11 times

Suction temperature sensor failure

LED1 flash 12 times

Ambient temperature sensor failure

LED1 flash 13 times

Discharge temperature sensor failure

Method of    The temperatures detected by the thermistors are used to determine thermistor errors
Malfunction
Detection

Malfunction When the thermistor input is more than 4.92V or less than 0.08V during compressor
Decision   operation.

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 PCB, and measure the resistance of thermistor using tester.The

relationship between normal temperature and resistance is shown in the value of indoor thermistor.

Thermistor resistance check

Is it normal?

Yes

Is it normal?

Check the connector connection.

Replace the thermistor

Replace the indoor unit PCB

Correct the connection

Summary of Contents for YJHMXH007BARR-FX

Page 1: ...iduals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced professional technicians Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death EK Series YJHMXH007BARR FX YJHMXH009BARR FX YJHMXH012BARR FX YJU2YH018BARRA X ...

Page 2: ...PROM abnormal 44 6 3 3Indoor AC fan motor malfunction 45 6 3 4 Outdoor DC fan motor fault 46 6 3 5 IPM protection 47 6 3 6 Over current of the compressor 48 6 3 7 The communication fault between IPM and outdoor PCB 49 6 3 8 Power Supply Over or under voltage fault 50 6 3 9 Overheat Protection ForDischarge Temperature 51 6 3 10 The communication fault between indoor and outdoor 52 6 3 11 Loss of sy...

Page 3: ...sure to discharge the capacitor completely before conducting repair work A charged capacitor can cause an electrical shock Do not start or stop the air conditioner operation by plugging or unplugging the power cable plug Plugging or unplugging the power cable plug to operate the equipment can cause an electrical shock or fire 1 Introduction 1 1 Safety Cautions Be sure to read the following safety ...

Page 4: ...ing the welder 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 t...

Page 5: ...generation or fire Do not damage or modify the power cable Damaged or modified power cable can cause an electrical shock or fire Placing heavy items on the power cable and heating or pulling the power cable can damage the cable Do not mix air or gas other than the specified refrigerant R 410A R22 in the refrigerant system If air enters the refrigerating system an excessively high pressure results ...

Page 6: ...ension cable or share the same power outlet with other electrical appliances since it can cause an electrical shock excessive heat generation or fire Caution Installation of a leakage breaker is necessary in some cases depending on the conditions of the installation site to prevent electrical shocks Do not install the equipment in a place where there is a possibility of combustible gas leaks If a ...

Page 7: ... replace it Corroded installation platform or frame can cause the unit to fall resulting in injury Check the grounding and repair it if the equipment is not properly grounded Improper grounding can cause an electrical shock Be sure to measure the insulation resistance after the repair and make sure that the resistance is 1 M ohm or higher Faulty insulation can cause an electrical shock Be sure to ...

Page 8: ...tion conditions after sudden power blackout The panel is easy to wash and the airflow vents can be detached easily With twin blade technology the airflow can be adjusted not to blow directly Catches most small particles and remove unpleasant odors effectively Sleep mode The setting temprature and the indoor noise can be adjusted to a more comfortable level when you set the sleep mode during night ...

Page 9: ...ng Packaged Dim ensions H W D W eight Dim ensions H W D Tem perature Control Running Current Rated Power Consum ption Rated M oisture Rem oval Running Current Rated Power Consum ption Rated M in M ax Power Factor Am ount of Additional Charge of Refrigerant M ax Interunit Piping Length M ax Interunit Height Difference COP Rated M in M ax Piping Connections Heat Insulation M odel Capacity Rated M in...

Page 10: ... 406 745 2150 2350 63 63 98 98 64 43 5 46 5 Casing Color Com pressor Type M odel 900 900 W hite rotary Com pressor SNB130FG YM 2 O utdoor Unit Starting Current cooling heating 8 8 Dim ensions W D H Packaged Dim ensions W D H W eight G ross W eight 64 Power Consum ption Rated cooling heating Power Factor cooling heating 41 41 Running Current Rated cooling heating Fan Type 2150 2350 10 3 11 3 10 3 1...

Page 11: ...N30ʙCN31 Connector transformer 7 CN32 Connector for display board 8 CON6ʙCON8 Connector for ions generator 9 CON7 Connector for communicate between the indoor board and the outdoor board 10 CN36 Connector for long range control 11 CN34 Connector for Net Module 12 CN20 Connector for room card Note Other designations PCB 1 Indoor Control PCB 1 SW1 Connector for Forced operation ON OFF switch 2 SW2 1...

Page 12: ...Connector wring diagram Domestic Air Conditioner PCB 1 CN11 CN36 CN20 CN1 CN26 CN32 CON1 SW1 CN27 CN30 CON2 CON6 CON8 CON7 CN34 CN31 SW2 ...

Page 13: ...odule board 10 CN36 Connector for communicate between indoor and outdoor unit 11 CN15 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 CN8 N CN9 Connector for CN27 CN25 on the control board LI CN3 LO CN4 Connector for reactor AC_L CN1 AC_N CN2...

Page 14: ...Connector wiring diagram 12 Domestic air conditioner CN9 CN10 CN36 CN3 CN23 CN24 CN25 CN28 PCB 1 ...

Page 15: ...Connector wiring diagram 13 Domestic air conditioner PCB 2 CN1 CN5 CN6 CN7 CN10 CN11 CN8 CN9 CN4 CN3 CN2 ...

Page 16: ...pened 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 the ...

Page 17: ...r 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 dehumidifying When the compressor works continuously for 1 6 minutes adaptable in EEPROM and the temperature of the indoor coils has ...

Page 18: ...ds If other conditions are satisfied 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 will be neglected Whe...

Page 19: ...icator 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 operate under a normal condition The timing starts since the last receptio...

Page 20: ...de 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 If you press the urgency key for less than 5 seconds the buzzer will ring when you press the on off key The system will enter the urgency operation when the urge...

Page 21: ...o 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 degree to 30 degree When the temperature goes beyond this range the abnormality can be confirmed If the temperature goes back into the range the sy...

Page 22: ...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 rings twice b The proceeding programs are as the follows Entering the fixed frequency operation you can set the fixed strength location 1 and se...

Page 23: ...ground 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 progra...

Page 24: ...uch process After starting the compressor for operation the compressor should run according to the calculated frequency and every determined frequency for protection should be prior to the calculated frequency 5 2 1 3 The speeds of increasing or decreasing the frequency of the compressor The speed of increasing or decreasing the frequency rapidly 1 1HZ second The speed of increasing or decreasing ...

Page 25: ...environment but also the maximum ability limitation of the system When the starting ability is not the maximum its maximum frequency limitation is calculated by the following equations The frequency limitation which is affected by the temperature and under the condition of actual ability the actural running system ability the maximum frequency which is limited by the temperature and under the cond...

Page 26: ... begins to control the airflow speed according to the temperature conditions of the outdoor environment 5 2 2 2 The outdoor fan control when heating The temperature of the outdoor air Ta Airflow speed Ta 22 Low 19 Ta 22 Keeping the speed 16 Ta 22 Medium 14 Ta 16 Keeping the speed Ta 14 High 5 2 3 The control of the outdoor electronic expansion valve When starting the compressor the opening size of...

Page 27: ...limitation Sensor detection methods 100 times one cycle of procedure run is one time and about 5ms detection method for each time continuously sampling for 8 times then order them and take the mean value of the middle 2 values take the mean value TTC Abnormal stop 110 Decreasing the frequency rapidly 1HZ second 100 Decreasing the frequency slowly 1HZ 10seconds 98 The frequency doesn t change 93 In...

Page 28: ...s greater than 8A the frequency of the compressor increases at the speed of no faster than 0 1HZ second 5 2 5 4 The protection function of AC current During the starting process of the compressor if the AC current is greater than 15A the frequency of the compressor decreases at the speed of 1HZ second During the starting process of the compressor if the AC current is greater than 13A the frequency...

Page 29: ...by high frequency if the modification rate is not high enough the control driven chip will enter into weak magnetic control this will help to relieve the problem of modification rate If during the course of weak magnetic control the modification rate is still not high enough enter into the control of decreasing frequency until the alarm of modification rate is relieved 5 2 5 7 Temperature protecti...

Page 30: ...omplete appliance s malfunctions are prior to the units malfunctions Annex 1 Malfunction codes of the whole unit Remarks under the mode of refrigeration the malfunctions of each unit s thin pipe temperature sensor are not reported under the mode of heating the malfunctions of each unit s thick pipe temperature sensor are not reported F12 1 Outdoor EEPROM error F1 2 The protection of IPM F22 3 Over...

Page 31: ...9 1858 89 8106 1 81 1 66 22 103 3598 93 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 5...

Page 32: ...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 4216 10 ...

Page 33: ... 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 1 790...

Page 34: ... 4 07 3 69 100 0 8741 0 7863 0 7067 4 12 3 74 101 0 8507 0 7646 0 6867 4 18 3 78 102 0 8281 0 7436 0 6672 4 23 3 83 103 0 8061 0 7233 0 6484 4 29 3 88 104 0 7848 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 ...

Page 35: ... 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 5296 52 2278 48 2099 1 58 ...

Page 36: ...385 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 4216 10 0964 0 75 0 75 25 10 3000 10 0000 9 7000 0 75 0 75 26 9 8975 9 5974 9 2980 0 76 0 76 27 9...

Page 37: ...2 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 1 7908 2 59 2 42 71 2 0337 1 8778 1 7324 2 63 2 46 72 1 9714 1 8186 1 6761 2 68 2 50 73 1 91...

Page 38: ...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 4648 4 98 4 45 116 0 5743 0 5100 0 4524 5 04 4 50 117 0 5600 0 4968 0 4...

Page 39: ...9230 2 61 2 27 4 2738 6777 2368 3158 2046 1961 2 60 2 26 3 2581 6752 2236 3876 1935 5371 2 58 2 25 2 2434 5487 2112 5459 1831 4826 2 56 2 24 1 2296 6230 1996 2509 1733 6024 2 55 2 23 0 2167 2730 1887 0018 1641 4966 2 53 2 22 1 2045 9191 1784 3336 1554 7931 2 52 2 21 2 1932 0242 1687 8144 1473 1460 2 50 2 20 3 1825 0899 1597 0431 1396 2333 2 48 2 19 4 1724 6540 1511 6468 1323 7551 2 47 2 17 5 1630 ...

Page 40: ...1 78 1 66 41 262 0206 242 6161 224 4465 1 76 1 64 42 250 2676 232 0436 214 9529 1 74 1 63 43 239 0983 221 9825 205 9065 1 71 1 61 44 228 4809 212 4060 197 2844 1 69 1 59 45 218 3860 203 2887 189 0648 1 67 1 57 46 208 7855 194 6066 181 2273 1 65 1 55 47 199 6531 186 3369 173 7524 1 63 1 54 48 190 9639 178 4584 166 6217 1 60 1 52 49 182 6945 170 9508 159 8181 1 58 1 50 50 174 8228 163 7951 153 3249 ...

Page 41: ... 0 99 86 41 7386 40 2604 38 7996 1 03 1 02 87 40 3241 38 8545 37 4048 1 07 1 06 88 38 9643 37 5045 36 0668 1 11 1 09 89 37 6569 36 2078 34 7831 1 14 1 13 90 36 3996 34 9622 33 5513 1 18 1 16 91 35 1903 33 7653 32 3689 1 22 1 19 92 34 0269 32 6151 31 2338 1 26 1 23 93 32 9075 31 5096 30 1438 1 30 1 27 94 31 8302 30 4467 29 0970 1 33 1 30 95 30 7933 29 4246 28 0915 1 37 1 34 96 29 7950 28 4417 27 12...

Page 42: ...0 2 35 123 12 9531 12 0503 11 2003 2 54 2 39 124 12 5840 11 6965 10 8617 2 58 2 43 125 12 2270 11 3545 10 5348 2 63 2 47 126 11 8817 11 0240 10 2191 2 68 2 51 127 11 5475 10 7046 9 9142 2 72 2 55 128 11 2242 10 3957 9 6197 2 77 2 59 129 10 9112 10 0970 9 3352 2 81 2 63 130 10 6084 9 8082 9 0602 2 86 2 67 131 10 3151 9 5288 8 7945 2 91 2 71 132 10 0312 9 2586 8 5378 2 95 2 75 133 9 7563 8 9971 8 28...

Page 43: ...erating current Check for insufficient gas Large operating noise and vibrations Check the installation condition Check to make sure that the required spaces for installation specified in the Technical Guide etc are provided 6 2 Problem Symptoms and Measures SymptRm Check Item Details of Measure None of the units Check the power supply Check to make sure that the rated voltage is supplied 6 Service...

Page 44: ... g a P M P I f o n o i t c e t o r p e h T 2 1 F F22 3 Overcurrent protection of AC electricity for the outdoor model Page 48 F3 4 Communication fault between the IPM and outdoor PCB Page 49 F19 6 Power voltage is too high or low Page 50 F4 8 Overheat protection for Discharge temperature Page 51 F21 10 Defrost temperature sensor failure Page 43 F7 11 Suction temperature sensor failure Page 43 F6 1...

Page 45: ...t is more than 4 92V or less than 0 08V during compressor Decision operation Conditions z 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 ...

Page 46: ...detected by the EEPROM are used to determine MCU Malfunction Detection Malfunction When the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed Faulty EEPROM data Causes Faulty EEPROM 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 44 ...

Page 47: ...ulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 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 ca...

Page 48: ...or or parts damage may be occurred Check whether Terminal on the outdoor mainboard is well inserted Is it normal Yes NO Reinsert the terminals Electrify the machine again and turn it on in the Cool state with the remote controller check whether motor can run Yes Measure the voltage between 3 and 6 of the terminal about 0 5v Is it normal N0 the motor of the outdoor unit is damaged and needs replaci...

Page 49: ...aulty PCB of IPM module Compressor 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 be...

Page 50: ...eshooting Caution Be sure to turn 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 ...

Page 51: ...Troubleshooting Caution Be sure 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 ...

Page 52: ...y voltage not as specified Causes the IPM module is broken 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 Ye...

Page 53: ...lectrify the machine again and turn 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 ...

Page 54: ...nected Causes The indoor PCB is broken The outdoor PCB is broken 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 ind...

Page 55: ...door unit with a multimeter If 230VAC is available but 310DC not 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 on...

Page 56: ...Ƶ Faulty PCB Troubleshooting Caution Be sure to turn 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 start up 1 The wiring of compressor is incorrect or the connection is poor 2 The compressor is damaged At first the compressor ...

Page 57: ...eat exchanger Ƶ Faulty heat exchange sensor Ƶ Insufficient 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 tem...

Page 58: ...1 2 3 5 8 5 6 4 7 4 POWER SOFT button is not available for 07k 09k 12k Exponent Parts and Functions 7 Exponent Domestic Air Conditioner 56 ...

Page 59: ...e 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 operation Use this operation only when the remote controller is defective o...

Page 60: ...r 1 hours temp rises by 1 futher The unit will run for further 6 hours then stops Temp is higher than temp setting so that room temperature won t be too low for your sleep 1 hours after SLEEP mode starts temp will become 2 lower than temp setting After another 1 hours temp decrease by 2 futher After more another 3hours temp rises by 1 futher The unit will run for further 3 hours then stops Temp is...

Page 61: ...the condition before the setting of healthy airflow function Notice Do not direct the flap by hand Otherwise the grille will run incorrectly If the grille is not run correctly stop for a minute and then start adjusting by remote controller blows direct to the body 2 In heating it is better to select the 3 In cooling it is better to select the mode mode Setting of proper room temperature Close door...

Page 62: ...ocatalyst air purifying filter face outside and the black side face the unit The green side of the bacteria killing medium air and the white side face the unit Please keep the bacteria killing medium air purifying filter in avoid long time directly sunshine when you stop using it or its ability of sterilization will be reduced The bacteria killing medium air purifying filter will be used for a lon...

Page 63: ... 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 STRICT ENFORCEMENT Do not operate the switch with wet hand PROHIBITION PROHIBITION PROHIBITION PROHIBITION PROHIBITION Do not install the unit near a fireplace or other hea...

Page 64: ...ct the air conditioner 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 out...

Page 65: ...oor 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 ﬂuorescent lamps can be left ƽ In the case of ﬁxing the remote controller on a wall place where the indoor unit can receive signals when the ﬂuore scent ƽ lamps in the room are lighten...

Page 66: ...es and the drain hose then fasten them with the adhesive tape ƽ Left Left rear piping In case of left side piping cut away with a nipper the lid for left piping ƽ In case of left rear piping bend the pipes according to the piping direction to ƽ 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 in...

Page 67: ...e Wing nut type Imperial type A 0 0 5mm 1 0 1 5mm 1 5 2 0mm rth leakage breaker Lean Damage of ﬂare 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 drainage as shown below ƽ...

Page 68: ... name plate C additional refrigerant amount charged in the field D total refrigerant charge E outdoor unit F refrigerant cylinder and manifold for charging IMPORTANT INFORMATION REGA RDING THE REFRIGERANT USED In accordance with the directive 2002 96 CE of the European parliament herewith we inform the consumer about the dis posal requirements of the electrical and electronic products conditioning...

Page 69: ...Heating insulating material Piping hole cover Fixing of outdoor unit Fix the unit to concrete or block ƽ with bolts 10mm and nuts ﬁrmly and horizontally When ﬁtting the unit to wall ƽ surface roof or rooftop ﬁx a supporter surely with nails or wires in consideration of earthquake and strong wind If vibration may affect the ƽ house ﬁx the unit by attaching a vibration proof mat The marks from to in...

Page 70: ...WARNING CAUTION 68 Installation ...

Page 71: ...dicated on the unit when installing or relocating the unit The use of any other refrigerant or an introduction of air into the unit circuit may cause the unit to run an abnormal cycle and abnormal cycle and cause the unit to burst In the event of a refrigerant gas leak provide adequate ventilation to the room If leaked refrigerant gas is exposed to a heat source noxious gases may form Do not touch...

Page 72: ...tions Use liquid refrigerant to charge the system Charge the unit with gas refrigerant will cause the refrigerant in the cylinder to change its composition and will lead to a drop in performance Do not use a charging cylinder The use of charging cylinder will change the composition of the refrigerant and lead to power loss Exercise special care when handling the tools An introduction of foreign ob...

Page 73: ...the instructions in the manual and make sure that they properly drain water so as to avoid dew condensation If not installed properly they may cause water leaks and damage the furnishings Do not spray water on the air conditioners or immerse the air conditioners in water Water on the unit presents a risk of electric shock Periodically check the platform on which is placed for damage to prevent the...

Page 74: ...ant charging Vacuum Gauze Checking vacuum degree Tools Materials Use Notes Charging Cylinder Refrigerant Charging Must not be used with R410 type units CAUTION Items to Be Checked 1 Verify the type of refrigerant used by the unit to be serviced Refrigerant Type R410A 2 Check the symptom exhibited by the unit to be serviced Look in this service handbook for symptoms relating to the refrigerant cycl...

Page 75: ... clutch type flare tool is used to machine flares on units that use R410A make the protruding part of the pipe between 1 0 and 1 5mm Copper pipe gauge for adjusting the length of pipe protrusion is useful Size mm Radial Thickness mm Size inch Type Type O pipes Type 1 2H or Hpipes Piping Materials Types of Copper Pipes Reference The table shows the standards in Japan Using this table as a reference...

Page 76: ...74 Installation ...

Page 77: ...NO Wind direction Air outlet Cushion rubber 4 Installation dimension Unit mm Model W D H L1 L2 L3 YJU2YH018BARRA X YJU2YH014BARRA X 780 270 540 566 106 5 317 810 288 688 583 113 5 319 5 Installation ...

Page 78: ...stalled every 5 7m Max Length B1 max 20m B2 max 20m Max Elevation A1 max 15m A2 max 15m In case the pipe total length B1 B2 is more than 20m the refrigerant should be charged according to 20 g m B Outdoor unit Indoor unit A1 B1 Indoor unit A2 B2 Outdoor unit Indoor unit B1 Indoor unit B2 Outdoor unit Indoor unit Oil trap A3 A3 max 15m B1 B2 max 30m Outdoor unit Indoor unit A1 B1 Indoor unit A2 B2 ...

Page 79: ...Pressurize for over 3 minutes at 4 2MPa After above 77 Installation ...

Page 80: ...en charge the liquid refrigerant into air conditioner according to the amount marked on the name plate Please do not let other cooling medium except speciﬁed one R410A or air ƽ enter into the cooling circulation system Otherwise there will be abnormal high pressure in the system to make it crack and lead to personal injuries Each indoor unit musts to be vacuumed according to the above steps ƽ ƽ 78...

Page 81: ...N 1 L 2 Outdoor unit A Outdoor unit B POWER To Indoor unit A To Indoor unit B DOUBLE DOUBLE 14K Outdoor unit A Outdoor unit B POWER To Indoor unit A To Indoor unit B 18K 1 L 2 N T 25A 250V The type of connecting wire is H07RN F QVWDOODWLRQ YJU2YH018BARRA X YJU2YH014BARRA X YJU2YH018BARRA X ...

Page 82: ...12 10 5 13 19 1 18 4 11 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 m Lack of refrigerant Check if there is leakage in the unit Installation 80 ...

Page 83: ...81 Domestic air conditioner Removal of procedure 9 ...

Page 84: ...stic air conditioner Removal of procedure P l ease embed the two during installat ion hooks on air filter com pletely into the unit Please embed the air filters into the unit along the grooves as installation ...

Page 85: ...ase close the panels before start the removal procedure of front grille one side to another to release each axis until it is on the horizontal position and then release the pivots on both sides of the unit to remove the front panel Remocal of front panel ...

Page 86: ...84 Domestic air conditioner Removal of procedure three 3 HOOKS ...

Page 87: ...85 Domestic air conditioner Removal of procedure horizontal flap flap flap flap flap ...

Page 88: ...86 Domestic air conditioner Removal of procedure Remove the swing Moter Remove the vertical blades 2 1 Every blade go round and round then move it ...

Page 89: ...87 Domestic air conditioner Removal of procedure ...

Page 90: ...Domestic air conditioner Removal of procedure 3 88 ...

Page 91: ...Domestic air conditioner Removal of procedure 89 ...

Page 92: ...Domestic air conditioner Removal of procedure 90 ...

Page 93: ...Domestic air conditioner Removal of procedure Outdoor Unit Removal of Outdoor Panel 91 ...

Page 94: ...92 Domestic air conditioner Removal of procedure Loosen the top panel screws 1 2 Lift the top panel ...

Page 95: ...93 Domestic air conditione Removal of procedure Loosen the csrews and pull the panel ...

Page 96: ...94 Domestic air conditioner Removal of procedure 2 Pull the wind circle Push the hooks first Remove the inlet grill ...

Page 97: ...95 Domestic air conditioner Removal of procedure ...

Page 98: ...96 Domestic air conditioner Removal of procedure ...

Page 99: ...97 Domestic air conditioner Removal of procedure 2 Loosen the fixing screws and remove the motor ...

Page 100: ...98 Domestic air conditioner Removal of procedure ...

Page 101: ...99 Domestic air conditioner Removal of procedure and remove the reactor Loosen the screw ...

Page 102: ...100 Domestic air conditioner Removal of procedure Loosen the marked screws and pull out the backgurd ...

Page 103: ...101 Domestic air conditioner Removal of procedure Loosen the marked screws and remove the stop valves Loosen the marked screws and remove the stop valves bracket 2 3 ...

Page 104: ... Diagrams INDOOR UNIT 㒓䏃 8 6 WUDQVIRUPHU HPHUJHQF VZLWFK IDQ PRWRU 5 LRQ JHQHUDWRU 72 287 225 81 7 5 URZQ ODFN 5 5HG HOORZ UHHQ KLWH EOXH PELHQW WHPS VHQVRU 3LSLQJ WHPS VHQVRU louver motor VLQJDO UHFHLYHU ERDUG Romm Card Wring diagram ...

Page 105: ...2 10K R51 10K R55 10K R60 10K 5V R54 10K R49 10K R42 10K A B 5V C20 0 1uF 25 35 SWITCH RST R63 10K R71 10K R74 10K R77 10K R65 10K R75 10K R78 10K COMM_TX COMM_RX ऩᇐᵓℹ䖯 ᴎ 䆒䅵 ᅵḌ ᅝ ܝ 㨷䞥ⲯ C18 0 1uF 25 35 12V R61 680Ω C45 1 2uF 450V ݙ 亢ᴎ C10 22nF 275VAC R57 47Ω 1W L1 LHB1308 171 171uH 0 8A 1 2 3 CN26 2 2 3 3 8 8 6 6 IC7 R3BMF51 220V L N 220V_L 5V 亢ᴎড作 R62 51K R58 1K C23 Comment 1nF C21 Comment 10nF 1 ...

Page 106: ... 㒘ড়ϔᢪϔᅸ ݙ 䗮䆃 COMM_TX COMM_RX 1 CON2 1 21 FUSE1 T3 15A 250VAC RV1 TVR14561 CX1 0 1uF 275VAC 220VAC 50Hz L N 220V_L L N 1 2 3 1 1 2 CN30 RTB 1 5 2P বय़ E1 2200uF 35V 105ć IN G N D OUT IC6 L7805CV 1 5A C4 0 1uF 5V C17 0 1uF E6 470uF 16V 105ć R39 10K R84 4 7K C14 1nF R68 10K 5V R36 1K C25 1nF 12V IRQ IRQ 1 CON1 N 2 2 0 V _ L HS1 5 5 N5 SS8050LT1H D11 1N4007 ZD1 1N4746A 18V 1W D12 1N4007 N4 2SC2412K D5 ...

Page 107: ... PARTS ARE HIGH VOLTAGE DON T TOUCH THE POINTED PARTS UNTIL THE VOLTAGE IS LESS THAN DC 10V THE CAPACITOR RETAINS HIGH VOLTAGE EVEN AFTER THE PLUG OFF FOR YOUR SAFETY BE SURE TO WAIT AT LEAST 5 MINUTES AFTER PLUG OFF AND USE A TESTER TO CONFIRM THE VOLTAGE BETWEEN CONNECTOR AND ON MAIN PCB BOARD IS LESS THAN DC 10V BEFORE START SERVICING OR LED2 EXTINGUISHED DON T TOUCH CAPACITOR EVEN AFTER PLUG O...

Page 108: ...K 1 R73 20K 1 R74 1K R76 20K 1 R70 1K R75 1K R71 1K C28 104 50V C27 104 50V C30 104 50V C29 104 50V E17 4 7U 16V E16 4 7U 16V E19 4 7U 16V E18 4 7U 16V E15 4 7U 16V E14 4 7U 16V E13 4 7U 16V XG A CG A 5V 5V XG B CG B 5V 5V 5V R59 10K 1 R58 10K 1 R57 1K R50 1K R56 1K R45 1K R44 1K C20 102 50V C19 102 50V R67 20K 1 R65 20K 1 R63 47K 1 R68 1K R66 1K R64 1K C25 104 50V C26 104 50V C24 104 50V 5V CS 5V...

Page 109: ...104 C203 104 C207 104 C208 104 IC5 HA17393AF IC6 HA1630D06 IC6 HA1630D06 R221 140 R216 10 R224 4 7K R211 1K R212 9 1K R209 1K R223 330 R210 6 8K R214 100 R207 1K 5V TR1 MMBT9013 5V 15V IC7 TL P251 2 3 5 6 8 4 8 5 6 7 R015 330 R208 6 8K R014 330 R013 330 R018 4 7K R016 1K R012 4 7K R011 4 7K R008 4 7K R019 4 7K R213 100 1 2 3 4 5 6 7 8 IC4 HA1630D06 IC4 HA1630D06 R206 1K R205 1K R203 1K R204 6 2K R...

Page 110: ...The end ...

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