Fujitsu AOYG07KMTA Service Manual Download Page 1

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Split type room air conditioner

Wall mounted type

Indoor unit

Outdoor unit

CONTENTS

SPECIFICATIONS. . . . . . . . . . . . . . . . . . .

DIMENSIONS . . . . . . . . . . . . . . . . . . . . . .

REFRIGERANT SYSTEM DIAGRAM. . . .

CIRCUIT DIAGRAM . . . . . . . . . . . . . . . . .

ERROR DETECTION. . . . . . . . . . . . . . . .

PCB CIRCUIT DIAGRAM . . . . . . . . . . . . .

PARTS (INDOOR UNIT) . . . . . . . . . . . . .

PARTS (OUTDOOR UNIT) . . . . . . . . . . .

21
33

ACCESSORIES . . . . . . . . . . . . . . . . . . .

ASYG07KMTA
ASYG09KMTA
ASYG12KMTA
ASYG14KMTA

AOYG07KMTA
AOYG09KMTA
AOYG12KMTA
AOYG14KMTA

Summary of Contents for AOYG07KMTA

Page 1: ...t CONTENTS SPECIFICATIONS 1 DIMENSIONS 3 REFRIGERANT SYSTEM DIAGRAM 6 CIRCUIT DIAGRAM 9 ERROR DETECTION 10 PCB CIRCUIT DIAGRAM 12 PARTS INDOOR UNIT 13 PARTS OUTDOOR UNIT 21 33 ACCESSORIES ASYG07KMTA ASYG09KMTA ASYG12KMTA ASYG14KMTA AOYG07KMTA AOYG09KMTA AOYG12KMTA AOYG14KMTA ...

Page 2: ...w Quiet 1 050 rpm 900 rpm 760 rpm 550 rpm 1 140 rpm 950 rpm 800 rpm 630 rpm 930 rpm 950 rpm 1 110 rpm 920 rpm 760 rpm 550 rpm 1 180 rpm 970 rpm 810 rpm 630 rpm 930 rpm 950 rpm ELECTRICAL DATA INDOOR UNIT Cooling INDOOR UNIT Heating OUTDOOR UNIT Heating AIRFLOW High Medium Low Quiet Cooling OUTDOOR UNIT Heating Cooling High Medium Low Quiet INDOOR UNIT Cooling INDOOR UNIT Heating OUTDOOR UNIT Heati...

Page 3: ... 020 rpm 950 rpm 1 250 rpm 1 020 rpm 810 rpm 580 rpm 1 290 rpm 1 100 rpm 910 rpm 670 rpm 1 120 rpm 990 rpm ELECTRICAL DATA INDOOR UNIT Cooling INDOOR UNIT Heating OUTDOOR UNIT Heating AIRFLOW High Medium Low Quiet Cooling OUTDOOR UNIT Heating Cooling High Medium Low Quiet INDOOR UNIT Cooling INDOOR UNIT Heating OUTDOOR UNIT Heating NOISE LEVEL 40 dB 35 dB 30 dB High Medium Low 42 dB 38 dB 33 dB 22...

Page 4: ...2018 03 01 3 DIMENSIONS INDOOR UNIT ASYG07KMTA ASYG09KMTA ASYG12KMTA ASYG14KMTA 15 8 to 16 7 Drain hose Diameter Outside Inside 13 8 mm 600 mm 270 mm 222 mm 834 mm ...

Page 5: ...2018 03 01 4 OUTDOOR UNIT AOYG07KMTA AOYG09KMTA AOYG12KMTA 20 mm 663 mm 19 mm 290 mm 58 mm 16 mm 450 mm 106 mm 541 mm 330 mm ...

Page 6: ...2018 03 06 5 OUTDOOR UNIT AOYG14KMTA 20 mm 799 mm 19 mm 290 mm 68 mm 16 mm 580 mm 109 mm 542 mm 330 mm ...

Page 7: ... 4 way valve Expansion valve Refrigerant direction ASYG07KMTA AOYG07KMTA ASYG09KMTA AOYG09KMTA Heat exchanger indoor unit Heat exchanger outdoor unit Muffler Compressor Cooling Heating Refrigerant pipe diameter Liquid 1 4 6 35 mm Gas 3 8 9 52 mm 2018 03 26 6 Teese tube ...

Page 8: ...lve 4 way valve Expansion valve Refrigerant direction ASYG12KMTA AOYG12KMTA Heat exchanger indoor unit Heat exchanger outdoor unit Muffler Compressor Cooling Heating Refrigerant pipe diameter Liquid 1 4 6 35 mm Gas 3 8 9 52 mm 2018 03 26 7 Distributor ...

Page 9: ...Muffler 4 way valve Expansion valve Refrigerant direction ASYG14KMTA AOYG14KMTA Heat exchanger indoor unit Heat exchanger outdoor unit Muffler Compressor Cooling Heating Refrigerant pipe diameter Liquid 1 4 6 35 mm Gas 3 8 9 52 mm 2018 03 06 8 Distributor ...

Page 10: ...lue Black Black Black Black 1 2 3 4 1 2 3 4 White White White White To Wireless lan adapter Option Power source Terminal Reactor Compressor 1 2 3 L N 4 Way valve coil Expansion valve coil Pipe Discharge pipe Thermistor Thermistor Outdoor temp Fan motor FM PMV 4WV P650 Red P5 P1 P30 P60 W400 U W401 V W402 W W200 W201 W103 W104 W70 W100 W101 W102 1 2 3 4 5 6 7 1 2 3 4 5 6 7 1 2 3 1 2 3 1 2 3 4 1 2 3...

Page 11: ...B02 B2B XH AM BK BLACK CNA01 B3B XH AM WHITE OUTDOOR UNIT POWER SOURCE AC230V 50Hz INDICATOR PCB K16JR 1700HSE D0 MAIN PCB ASYG07KMTA K15CA 1705HSE C1 K15CA 1706HSE C1 ASYG09KMTA K15CA 1707HSE C1 ASYG12KMTA K15CA 1708HSE C1 ASYG14KMTA 2018 03 26 10 PCB CIRCUIT DIAGRAM INDOOR UNIT CONTROL UNIT ASYG07KMTA EZ 01713HSE ASYG09KMTA EZ 01714HSE ASYG12KMTA EZ 01715HSE ASYG14KMTA EZ 01716HSE COMMUNICATION ...

Page 12: ... 8 1 TURN 2018 03 26 11 REACTOR 13mH 8A DC Resistance 415 9m 25 U V V W U W AOYG14KMTA 1 975 25 P5 Thermistor Characteristics Thermistor Discharge temp 168 6 k 62 6 k 40 0 k 0 4 V 0 9 V 1 2 V 0 20 30 Thermistor Thermistor Outdoor temp 35 2 k 12 6 k 8 0 k 2 6 V 3 8 V 4 1 V Temperature P1 Thermistor Characteristics 0 20 30 Thermistor Thermistor Pipe temp 16 1 k 6 0 k 3 8 k 1 1 V 2 2 V 2 8 V Temperat...

Page 13: ...in pump error 5 4 Electric air cleaner reverse VDD error 5 5 Filter set error 5 7 Damper error 5 8 Intake grille error 5 9 Indoor unit fan motor 2 error Left side fan 5 10 Indoor unit fan motor 3 error Right side fan Error display Error code Description OPERATION lamp green TIMER lamp orange ECONOMY lamp green 6 1 Outdoor unit reverse missing phase and wiring error 5 15 Indoor unit error 6 2 Outdo...

Page 14: ...SYG12KMTA ASYG14KMTA 2018 03 02 13 3 Bracket panel 9387480009 4 Electric filter holder 9332911008 5 Air clean filter assy 9317250009 1 Remote control no brand 9319208008 2 Remote control holder 9318912005 Ref Description Part number 5 4 3 1 2 ...

Page 15: ... ASYG09KMTA ASYG12KMTA ASYG14KMTA 2018 03 02 14 11 12 14 Front panel total assy Wire cover assy 9387596038 Screw cap 9387476002 Ref Description Part number Under cover L 9387477009 13 Under cover R 9387478006 14 11 12 13 11 ...

Page 16: ...TA ASYG12KMTA ASYG14KMTA Front panel total assy 2018 03 02 15 22 Front panel B Panel cover 21 Air filter 9387473018 Front panel Intake grille assy FUJITSU 9387756036 Ref Description Part number Grille clamper L Grille clamper R 22 21 ...

Page 17: ...INDOOR UNIT ASYG07KMTA ASYG09KMTA ASYG12KMTA ASYG14KMTA 2018 03 02 16 31 32 U D louver assy 9387479003 Ref Description Part number Shaft cover 9332861006 33 Louver spring 9387471007 31 32 33 ...

Page 18: ...42 INDOOR UNIT ASYG07KMTA ASYG09KMTA ASYG12KMTA ASYG14KMTA Control box 17 Control cover 41 Room thermistor holder 9387467000 Ref Description Part number 42 Thermistor assy 9900627027 2018 03 02 41 ...

Page 19: ...y 9900369057 52 Control box Main PCB ASYG07 9710368141 51 Main PCB ASYG09 9710368158 51 Ref Description Part number 53 Box shield Display assy 9710858024 54 Indicator PCB Wi Fi holder PWB holder A PWB holder B 9710786020 2018 03 02 51 53 52 Main PCB ASYG12 9710368165 51 Main PCB ASYG14 9710368172 51 ...

Page 20: ...p motor holder assy Cable guide Base total assy Step motor holder assy 9387714005 63 Drain pan total assy 9387590005 Evaporator total assy 07 09 12 9387593006 Ref Description Part number 2018 03 02 Step motor holder 62 Evaporator total assy ASYG14 9387593013 63 61 64 62 ...

Page 21: ...otal assy Motor cover assy Fan motor Motor case Brushless motor 07 09 12 9603614010 Bearing D assy 9387055016 Motor cover assy Base assy 73 Crossflow fan assy 9333628004 71 72 Ref Description Part number 20 2018 03 02 73 72 71 Brushless motor ASYG14 9603572020 71 ...

Page 22: ...2018 03 02 21 PARTS OUTDOOR UNIT AOYG07KMTA AOYG09KMTA AOYG12KMTA 1 Protective net assy 9322811004 3 Drain pipe 9322144003 2 Outdoor thermistor 9900565053 Ref Description Part number 2 3 1 ...

Page 23: ... 06 22 12 Front panel assy 9322555083 11 Top panel assy 9322556080 14 Emblem 9387859003 13 Blow grille 9322135001 16 Cabinet right assy 9322552112 15 Switch cover assy 9322570000 Ref Description Part number 17 Propeller Fan 9322136008 16 15 11 17 12 14 13 ...

Page 24: ...et assy 07 09 9322553003 21 Motor bracket assy AOYG12 9322553010 23 Reactor assy 9900583019 22 Brushless motor 9603553005 24 Terminal 9900435028 Ref Description Part number OUTDOOR UNIT AOYG07KMTA AOYG09KMTA AOYG12KMTA 23 22 24 21 ...

Page 25: ...k cover Terminal bracket assy 31 Service unit Main PCB 12 9709682340 Shield panel 32 Heatsink 9322418005 Ref Description Part number OUTDOOR UNIT AOYG07KMTA AOYG09KMTA AOYG12KMTA 32 31 33 31 Service unit Main PCB 09 9709682333 31 Service unit Main PCB 07 9709682326 33 Thermistor assy 9900727062 ...

Page 26: ...or B 9322387004 41 Condenser total assy 07 09 9322272010 S insulator H 9322389008 S insulator F 9322388001 Ref Description Part number 42 Condenser total assy 12 9322273000 OUTDOOR UNIT AOYG07KMTA AOYG09KMTA AOYG12KMTA 41 42 ...

Page 27: ...1 3 way valve assy 57 9322474025 2 way valve assy 9322423009 Compressor assy 12 51 9322425003 55 Expansion valve coil 9970095153 53 4 way valve assy 9322392008 56 Pulse motor valve assy 9322403018 Ref Description Part number OUTDOOR UNIT AOYG07KMTA AOYG09KMTA AOYG12KMTA 51 52 55 56 57 54 53 ...

Page 28: ...2018 03 02 27 OUTDOOR UNIT AOYG14KMTA 1 Protective net assy 9322811011 3 Drain pipe 9322144003 2 Outdoor thermistor 9900565060 Ref Description Part number 2 3 1 ...

Page 29: ...ront panel assy 9322555014 11 Top panel assy 9322556028 14 Emblem 9319151007 13 Blow grille 9322135001 16 Cabinet right assy 9322552020 15 Switch cover assy 9322570000 Ref Description Part number 17 Propeller fan 9322136008 16 15 13 11 17 12 14 ...

Page 30: ...2018 03 02 29 21 Motor bracket assy 9322553010 23 Reactor assy 9900583019 22 Brushless motor 9603553005 24 Terminal 9900435028 Ref Description Part number OUTDOOR UNIT AOYG14KMTA 23 22 24 21 ...

Page 31: ...L IPM spacer R PWB Holder Auxiliary plate Terminal bracket assy 31 Service unit Main PCB 9709682357 Shield panel 32 Heatsink 9322418005 Ref Description Part number OUTDOOR UNIT AOYG14KMTA 32 31 33 33 Thermistor assy 9900727062 ...

Page 32: ...0 31 S insulator B 9322535009 S insulator H 9322537003 S insulator F 9322536006 S insulator V 9323045002 Ref Description Part number Hair pin cushion 41 Condenser total assy 9322275004 OUTDOOR UNIT AOYG14KMTA 41 ...

Page 33: ... Rubber cushion 54 9322475008 3 way valve assy 57 9322474001 2 way valve assy 9322427007 55 Expansion valve coil 9970095122 53 4 way valve assy 9322444011 56 Pulse motor valve assy 9322463005 Ref Description Part number OUTDOOR UNIT AOYG14KMTA 51 52 55 56 57 54 53 ...

Page 34: ... ty ACCESSORIES 2017 08 30 33 INDOOR UNIT OUTDOOR UNIT Cloth tape 1 Tapping screws Large 5 Tapping screws Small 2 Remote controller 1 Battery 2 Remote controller holder 1 Wall hook bracket 1 Drain pipe 1 For outdoor unit drain piping work ...

Page 35: ...1801G4693 ...

Page 36: ...SPLIT TYPE ROOM AIR CONDITIONER WALL MOUNTEDtype Models Indoor unit Outdoor unit INVERTER AS G07KMTA AS G09KMTA AS G12KMTA AS G14KMTA AO G07KMTA AO G09KMTA AO G12KMTA AO G14KMTA SERVICE INSTRUCTION ...

Page 37: ... FORCED COOLING OPERATION 17 COMPRESSOR PREHEATING 19 ECONOMY OPERATION 20 OUTDOOR UNIT LOW NOISE OPERATION 01 01 01 02 01 03 01 04 01 05 01 07 01 08 01 09 01 10 01 13 01 13 01 13 01 14 01 14 01 14 01 15 01 15 18 10 C HEAT OPERATION 01 15 01 16 21 POWERFUL OPERATION 01 16 23 OFF DEFROST OPERATION CONTROL 22 DEFROST OPERATION CONTROL 01 17 01 19 24 VARIOUS PROTECTIONS 01 20 01 13 2 TROUBLE SHOOTING...

Page 38: ...DATA 3 1 FUNCTION SETTING 3 1 1 INDOOR UNIT 3 1 2 Procedures to change the Function Setting for wireless RC 03 01 03 01 03 05 3 2 Thermistor Resistance Values 3 2 1 INDOOR UNIT 3 2 2 OUTDOOR UNIT 03 07 03 07 03 07 ...

Page 39: ...1 DESCRIPTION OF EACH CONTROL OPERATION WALL MOUNTED type INVERTER ...

Page 40: ...r the maximum frequency is limited in the range shown in Fig 1 based on the indoor fan mode and the outdoor temperature If the room temperature is some degrees lower than a set temperature the compressor will be stopped AO G09KMTA AO G12KMTA AO G14KMTA A zone 90rps 52rps 36rps 24rps B zone 90rps 52rps 36rps 24rps C zone 90rps 52rps 36rps 24rps D zone 64rps 46rps 34rps 22ps E zone 64rps 46rps 34rps...

Page 41: ...an a set temperature the compressor operation frequency will attain to maximum performance If the room temperature is some degrees higher than a set temperature the compressor will be stopped When the room temperature is between 1 C to 6 C of the setting temperature the compressor frequency is controlled within the range shown in Table 3 Table 3 Compressor frequency range 01 02 Minimum frequency M...

Page 42: ...mperature sensor of the indoor unit body has detected as shown in the Table 4 Ts 0 5 C Ts 1 5 C Ts 0 5 C Ts 1 5 C Table 4 Compressor frequency in Dry mode Fig 2 Compressor control based on room temperature Operating frequency 24rps 07 09 12KMTA 14KMTA 18rps 0rps 24rps 16ps 0rps X zone J zone Y zone X zone J zone Y zone Room temperature Room temperature ...

Page 43: ... other than auto changeover operation NO NO Thermostat remains in OFF state for 6 minutes or longer System stops or operation command other than auto changeover operation YES YES When the air conditioner is set to the AUTO mode by remote control operation starts in the optimum mode from among the Heating Cooling and Monitoring modes During operation the optimum mode is automatically switched in ac...

Page 44: ...R Ts 2 5 C 1 5 C TR Ts 2 5 C TR Ts 1 5 C Hi mode Me mode Lo mode 1 Fan speed Table 5 Indoor fan speed Operation mode Air flow mode Speed rpm Cooling Fan Heating Dry X zone 550 J zone 550 X zone 550 J zone 550 X zone 550 J zone 550 AS G07KMTA AS G09KMTA AS G12KMTA 4 DRY OPERATION Refer to the Table 5 During the dry mode operation the fan speed setting can not be changed AS G14KMTA X zone 580 J zone...

Page 45: ...42 C 30 C 34 C Indoor heat exchanger temperature Indoor heat exchanger temperature Hi Me Lo Cool air prevention 39 C 37 C 37 C 32 C 28 C S Lo Switch the airflow Auto at cooling mode and the indoor fan motor will run as shown in Fig 7 Switch the airflow at cooling mode and the indoor fan motor will run as shown in Fig 7 It depends on the Function setting Indoor unit fan control for energy saving 7 ...

Page 46: ...07KMTA 14KMTA 12KMTA Y Z Zone rpm F G Y Z F G Y Z F G Y Z F G Dry 950 270 240 210 190 170 950 780 680 610 580 930 690 550 510 480 930 690 550 510 480 1120 870 710 660 500 1020 790 730 630 530 470 950 780 540 360 270 950 250 220 190 170 950 330 300 270 250 950 270 240 210 190 170 950 350 320 290 270 250 950 780 680 610 580 950 900 800 680 580 540 990 920 810 670 570 520 990 920 630 460 380 990 300 ...

Page 47: ...isplay does not change Use the air direction adjustments within the ranges shown above During AUTO mode operation for the first a few minutes after beginning operation air flow will be horizontal the air direction cannot be adjusted during this period The air flow direction setting will temporarily become when the temperature of the air flow is low at the start of the Heating mode Range Heating mo...

Page 48: ...ency Frequency Frequency Frequency Time Time Time Time Time 60sec 140sec 170sec 220sec 280sec 360sec 430sec Time 77rps 84rps Frequency Frequency Time 6 Time 7 Time 7 Frequency Frequency Time 6 93rps 103rps 3 LIMITATION OF COMPRESSOR FREQUENCY BY OUTDOOR TEMPERATURE The minimum compressor frequency is limited by outdoor temperature as shown in the Table12 Over Under Over Under Over Under Over Under...

Page 49: ...on mode Stop mode Set time of timer The program timer allows the OFF timer and ON timer to be used in combination one time Operation mode Operation will start from the timer setting either OFF timer or ON timer whichever is closest to the clock s current timer setting The order of operations is indicated by the arrow in the remote control unit s display SLEEP timer operation cannot be combined wit...

Page 50: ...ion In the cooling operation mode When the sleep timer is set the setting temperature is increased 1 C It increases the setting temperature another 1 C after 1 hour After that the setting temperature is not changed and the operation is stopped at the time of timer setting Ts 1 C 2 C Set 60min In the heating operation mode When the sleep timer is set the setting temperature is decreased 1 C It decr...

Page 51: ...ay Setting day Setting day ON OFF ON OFF ON OFF Set time Set time The DAY OFF setting is only available for days for which weekly settings already exist The DAY OFF setting can only be set one time The DAY OFF setting is cancelled automatically after the set day has passed Normal Next day setting If the operating time carries over to the next day during a next day setting the effective DAY OFF ran...

Page 52: ...r connecting the power supply By the wireless remote controller To start the run press the START STOP button the TEST RUN button on the remote controller with a by using the tip of a ballpoint pen or other small object Release Perform the test operation for 60 minutes Pressing the MANUAL AUTO button of the indoor unit for more than 3 seconds Using the Wired remote control Option If the Operation l...

Page 53: ... set the operation is controlled as shown in Table17 When the power was interrupted by a power failure etc during operation the operation contents at that time are memorized and when power is recovered operation is automatically started with the memorized operation contents When the power is interrupted and recovered during timer operation since the timer operation time is shifted by the time the ...

Page 54: ...output ECONOMY Operation is approximately 70 of normal air conditioner operation for cooling and heating The ECONOMY operation is almost the same operation as below settings Mode Cooling Dry Heating Target temperature Setting temp 1 C Setting temp 1 C Table 19 When the outdoor heat exchanger temperature is lower than 4 C and the heating operation has been stopped for 30 minutes power is applied to...

Page 55: ...ol Release Current release operation release value 3 5A 3 0A Table 20 21 POWERFUL OPERATION The POWERFUL OPERATION functions by pressing POWERFUL button on the remote controller The indoor unit outdoor unit will operate at maximum power as shown in Table21 Release Condition is as follows Cooling Dry Room tenperature Setting temperature 0 5 C or Operation time has passed 20 minutes COMPRESSOR FREQU...

Page 56: ... operation time Compressor integrating operation time Less than 22 min 22 to 62 min More than 62 min Does not operate 9 C 5 C 07 12KM Less than 25 min 14KM Less than 40 min 07 12KM More than 25min 14KM More than 40min Integrating defrost Constant monitoring More than 240 min For long continuous operation Less than 10min 1 For intermittent operation 3 C More than 215 min For long continuous operati...

Page 57: ... heat exchanger temperature Below 5 C Compressor integrating operation Over 25 min 07 12KM Over 40 min 14KM 2nd and later defrost Integrating defrost Constant monitoring Defrost Indicator Operation lamp 7 sec ON 2 sec OFF Defrost start Compressor OFF count 40 times Less than 10min 1st defrost Compressor integrating operation Over 62 min Compressor integrating operation Over 240 min Outdoor heat ex...

Page 58: ...ndicater Operation lamp 7 sec ON 2 sec OFF Outdoor heat exchanger temperature Over 16 C or Compressor ON time Over 15 minutes Defrost end 2 OFF DEFROST END CONDITION Release Condition Outdoor heat exchanger temperature sensor value is higher than 16 C or Compressor operation time has passed 15 minutes In heating operation the outdoor heat exchanger temperature is less than 4 C compressor continuou...

Page 59: ...ressor is stopped and the indoor unit LED starts blinking 104 C 101 C 110 C Table 24 Discharge temperature over rise prevension control Release temperature Temperature Temperature Temperature 2 CURRENT RELEASE CONTROL The compressor frequency is controlled so that the outdoor unit input current does not exceed the current limit value that was set up with the outdoor temperature The compressor freq...

Page 60: ... outdoor fan motor are stopped and trouble display is performed 5 HIGH TEMPERATURE RELEASE CONTROL HEATING MODE 01 21 Outdoor temperature Over than 10 C 1 or 12 C 2 Less than 10 C 1 or 12 C 2 1 When the temperature rises 2 When the temperature drops 4 C 7 C 13 C Temperature Temperature On heating mode the compressor frequency is controlled as following based on the detection value of the indoor he...

Page 61: ...2 TROUBLE SHOOTING WALL MOUNTED type INVERTER ...

Page 62: ...MER ECONOMY Indoor unit main PCB error Continuous 3 times 5 times 10 35 Manual auto switch error Continuous 4 times 1 times 12 41 Indoor Room Thermistor Error Continuous 4 times 2 times 13 42 Indoor Heat Ex Thermistor Error Continuous 5 times 1 times 14 51 Indoor Unit Fan Motor Error Continuous 5 times 15 times 15 5U Continuous 6 times 2 times 16 62 Indoor Unit Error 11 2 11 Outdoor unit main PCB ...

Page 63: ...ts Trouble shooting Green Orange Green Indoor Unit Display Wired Remote Controller Display 22 23 Continuous 9 times 9 times 4 way Valve Error 99 Continuous 10 times 1 times Discharge Temp Error A1 OPERATION TIMER ECONOMY ...

Page 64: ...error codes may be displayed for the indoor unit connected to the remote controller 1 Stop the air conditioner operation 2 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more to start the self diagnosis 4 Press the SET TEMPERATURE buttons simultaneously for 3 seconds or more or there is no key input for 60 seconds to stop the display 3 Press the SET TEMPERATURE button to select ...

Page 65: ...it If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC207V AC230V 10 253V AC230V 10 appears at Outdoor Unit Terminal L N Check Point 4 Check Serial Signal Reverse Transfer Signal Check Serial Signal Reverse Transfer Signal Check if Indicated value swin...

Page 66: ... unit If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check Point 3 Check the voltage of power supply Check the voltage of power supply Check if AC207V AC230V 10 253V AC230V 10 appears at Outdoor Unit Terminal L N Check Point 4 Check Serial Signal Reverse Transfer Signal Check Serial Signal Forward Transfer Signal Check if Indicated value s...

Page 67: ...d indoor unit and check if there is a disconnection of the cable When the indoor unit cannot properly receive the signal from Wired Remote Controller for 1 minute or more 02 06 If it is DC12V Remote Control is failure Communication PCB or Main PCB is normal Replace Remote Control If it is DC 0V Communication PCB or Main PCB is failure Check Remote Control once again Replace Communication PCB orMai...

Page 68: ...CB If there is loose connector open cable or miss wiring the same a signal has not been received for 15sec After receiving a signal from the Wi fi adapter 1 Connection failure 2 Wi fi adapter failure 3 Main PCB failure Check Point 1 Check the connection Check Point 2 Replace Wi fi adapter If Check Point 1 do not improve the symptom change Wi fi adapter OK OK Check Point 3 Replace Main PCB If Check...

Page 69: ...s is incorrect 2 Main PCB failure Check Point 1 Check the total capacity of indoor unit Check the total capacity of the connected indoor units If abnormal condition is found correct it by referring to Installation Manual or Data Technical Manual Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Main PCB Indicate or Display Outdoor Unit No indication Indoor Unit Ope...

Page 70: ...ncorrect Check Point 1 Check the type of indoor unit Check the type of the connected indoor unit If abnormal condition is found correct it Check Point 2 Replace Main PCB If Check Point 1 do not improve the symptom replace Main PCB of Outdoor unit 02 09 Indicate or Display Outdoor Unit No indication Indoor Unit Operation lamp 2 time Flash Timer lamp 3 time Flash Economy lamp Continuous flash ERROR ...

Page 71: ... causes harmonic wave Note EEPROM EEPROM Electronically Erasable and Programmable Read Only Memory is a non volatile memory which keeps memorized information even if power is turned off It can change the contents electronically To change the contents it uses higher voltage than normal and it can not change a partial contents Rewriting shall be done upon erasing the all contents There is a limit in...

Page 72: ...nd Indicator PCB failure Check Point 1 Check the Manual auto switch Check if Manual auto switch is kept pressed Check ON OFF switching operation by using a meter If Manual auto switch is disabled on off switching replace it Check Point 2 Replace MainPCB and Indicator PCB If Check Point 1 do not improve the symptom replace Main PCB and Indicator PCB Indicate or Display Outdoor Unit No indication In...

Page 73: ...removed Check erroneous connection Check if thermistor cable is open Upon correcting the removed connector or mis wiring reset the power Thermistor Characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Main PCB 02 12 25 C 20 C...

Page 74: ...wiring reset the power Check Point 2 Remove connector and check Thermistor resistance value Thermistor Characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Main PCB 02 13 20 C 10...

Page 75: ...e motor If there is any surrounding equipment that causes heat Upon the temperature coming down restart operation When the condition that actual frequency of Indoor Fan is below 1 3 of target frequency is continued more than 56 seconds 02 14 Check Point 4 Replace Main PCB If Check Point 1 3 do not improve the symptom replace Main PCB Check Point 3 Check Indoor unit fan motor Check Indoor unit fan ...

Page 76: ...erate Does Error indication show again Check Point 1 2 Check external cause Check if temporary voltage drop was not generated Check if momentary open was not generated Check if ground is connection correctly or there are no related cables near the power line Change Main PCB Access to EEPROM failed due to some cause after outdoor unit started 02 15 Indicate or Display Outdoor Unit No indication Ind...

Page 77: ...ause at Indoor and Outdoor Voltage drop or Noise Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete ins...

Page 78: ... obstructing the air distribution circuit Is there any clogging of Outdoor Heat Exchanger Is the Fan rotating by hand when operation is off If the Fan Motor is locked replace it Check Outdoor Fan Motor Refer to Trouble shooting 21 If the Fan Motor is failure replace it Check Point 4 Check Compressor PARTS INFORMATION 2 Check Compressor If Check Point 1 4 do not improve the symptom change Main PCB ...

Page 79: ...is wiring reset the power Check Point 2 Remove connector and check Thermistor resistance value Thermistor Characteristics Approx value If Thermistor is either open or shorted replace it and reset the power Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor DC5 0V If the voltage does not appear replace Main PCB 02 18 90 ...

Page 80: ...t the power Check Point 2 Remove connector and check Thermistor resistance value Thermistor Characteristics Approx value If Thermistor is either open or shorted replace it and reset the power 02 19 5 C 10 C 95 6 30 C 50 3 20 C 80 C 70 C 60 C 30 C 20 C 10 C 5 C 0 C 50 C 40 C Check Point 3 Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit and check terminal vol...

Page 81: ...k Point 2 Remove connector and check Thermistor resistance value Thermistor Characteristics Approx value If Thermistor is either open or shorted replace it and reset the power 02 20 15 C 20 C 224 3 30 C 159 7 25 C 35 C 5 2 40 C 4 2 45 C 3 5 50 C 2 8 55 C 30 C 25 C 10 C 5 C 0 C 5 C 10 C 20 C 15 C Check Point 3 Check Point 3 Check voltage of Main PCB DC5 0V Make sure circuit diagram of outdoor unit ...

Page 82: ...ry power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check Point 1 1 Reset Power Supply and operate Does Error indication show again When Input Current Sensor has detected...

Page 83: ... stop by overcurrent generation after inverter compressor start processing completed generated consecutively 10 times The number of generations is reset if the start up of the compressor succeeds No obstructions in air passages Heat exchange fins clogged Outdoor unit fan motor check Ambient temperature not raised by the effect of other heat sources Discharged air not sucked in Check Point 1 Check ...

Page 84: ...minal Main PCB If the detected rotor location is out of phase with actual rotor location more than 90 the compressor stops After the compressor restarts if the same operation is repeated within 40sec the compressor stops again If and repeats 5 times the compressor stops permanently 02 23 Check Point 1 Check Noise from Compressor Turn on Power and check operation noise If an abnormal noise show rep...

Page 85: ...ltage is not correct replace Main PCB When outdoor fan rotation speed is less than 100rpm in 20 seconds after fan motor starts fan motor stops After fan motor restarts if the same operation within 60sec is repeated 3 times in a row compressor and fan motor stops If and repeats 5 times in a row compressor and fan motor stops permanently Read wire DC voltage Red Black 306 374V White Black 15 1 5V 02...

Page 86: ... 2 29k at 20 C If it is Open or abnormal resistance value replace Solenoid Coil 02 25 Cooling or Dry operation Indoor heat exchanger temp Room temp 10degC Heating operation Indoor heat exchanger temp room temp 10degC If the same operation is repeated 5 times the compressor stops permanently Solenoid coil Check each piping temperature and the location of the valve by the temperature difference If t...

Page 87: ...heck Point 5 Check the refrigerant amount Leak check EEV EEV1 EEV2 open Strainer clogging check before and after EEV ACM oil return Check Point 2 Check the EEV strainer If the 3 way valve gas side was closed open the 3 way valve gas side and check operation Check Point 1 Check if 3 way valve liquid side is open If the 3 way valve liquid side was closed open the 3 way valve liquid side and check op...

Page 88: ...ective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding 02 27 2 3 TROUBLE SHOOTING WITH NO ERROR CODE Check Point 3 Check Electrical Components YES YES NO Check the voltage of power supply Check if AC207 253V appea...

Page 89: ...Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electric line Neon bulb or electric equipment that may cause harmonic wave Check the complete insulation of grounding Check the voltage of power supply Check if AC207 253V appears at Outdoor Unit Terminal L N Check Fuse in Main P...

Page 90: ...a Technical Manual Turn off Power and check correct followings Is there loose or removed communication line of Indoor Unit and Outdoor Unit Instant drop Check if there is a large load electric apparatus in the same circuit Momentary power failure Check if there is a defective contact or leak current in the power supply circuit Noise Check if there is any equipment causing harmonic wave near electr...

Page 91: ...ts that obstruct the air flow route Check clogged Heat Exchanger Is the Valve open Is capacity of Indoor unit fitted to room size Any windows open or direct sunlight Check connection pipe specified pipe length Pipe diameter Check any loose or removed communication line If there is an abnormal condition correct it by referring to Installation Manual or Data Technical Manual Check if Strainer is clo...

Page 92: ...on grille and front panel normal Is Fan broken or deformed Is the screw of Fan loose Is there any object which obstruct the Fan rotation Is Main unit installed in stable condition Is Fan guard installed normally Check if vibration noise by loose bolt or contact noise of piping is happening Is Compressor locked Check Compressor PARTS INFORMATION 1 2 Water Leaking 1 Erroneous installation 2 Drain ho...

Page 93: ...mpressor due to clogged dirt or less oil Replace Compressor Replace Compressor Replace Compressor Stops soon after starting up Is there open or loose connection cable Is Gas pipe valve open Low pressure is too low Check if Refrigerant is leaking Recharge Refrigerant Check if strainer is clogged PARTS INFORMATION 3 If there is no failure the defect of Compressor can be considered Compression part b...

Page 94: ...heck terminal connection of Compressor loose or incorrect wiring Check winding resistance of each terminal If the resistance value is 0 or infinite replace Compressor If the symptom does not change with above Check 1 2 replace Main PCB 02 33 U R RED V S WHITE C W BLACK Terminal cover opened Resistance Value 2 18 at 20 C for 07 09 12KMTA 1 975 at 20 C for 14KMTA ...

Page 95: ... 4 5 at 20 C Outdoor unit Electronic Expansion Valve EEV Check connection of connector P30 Loose connector or open cable Remove connector check each winding resistance of Coil If Resistance value is abnormal replace EEV Remove Connector and check Voltage DC12V If it does not appear replace Main PCB Turn on Power and check operation noise If an abnormal noise does not show replace Main PCB When Val...

Page 96: ...C voltage Vm No function No function Earth terminal GND Control voltage Vcc Speed command Vsp Feed back FG Pin number wire color Terminal function symbol 1 Red 2 3 4 Black 5 White 6 Yellow Blue DC voltage Vm No function Earth terminal GND Control voltage Vcc Speed command Vsp Feed back PG SERVICE PARTS INFORMATION 4 Check Point 1 Check rotation of Fan Indoor unit fan motor Rotate the fan by hand w...

Page 97: ...3 APPENDING DATA WALL MOUNTED type INVERTER ...

Page 98: ... amount of dust in the air of the room If the indication is not required select No indication 03 When cdifferent type of indoor units such as wall mounted type and cassette type cassette type and duct type or other combinations are connected using group control system some functions may no longer be available Setting Description Function Number Setting Value Standard 400 hours Long interval 1 000 ...

Page 99: ... Less cooling More heating 11 1 0 C 12 1 5 C 13 2 0 C 14 2 5 C 15 3 0 C 16 3 5 C 17 4 0 C Room temperature control for wired remote controller sensor Depending on the installed environment correction of the wire remote temperature sensor may be required Select the appropriate control setting according to the installed environment To change this setting set Function 42 to Both 01 Ensure that the Th...

Page 100: ...Function number Setting value Setting description Factory setting 42 t i n u r o o d n I 0 0 h t o B 1 0 Remote controller custom code Only for wireless remote controller The indoor unit custom code can be changed Select the appropriate custom code External input control Operation Stop mode or Forced stop mode can be selected Room temperature sensor switching Aux To use the temperature sensor on t...

Page 101: ...ing the setting on the remote controller 01 When the outdoor unit is stopped the indoor unit fan operates intermittently at a very low speed 02 Enable or disable this function by remote controller setting W As the factory setting this setting is initially invalidated hen connecting VRF system using network converter this setting must be set to 00 or 01 Function number Setting value Setting descrip...

Page 102: ...utton again to return to the function number selection Selecting the Function Number and Setting Value 5 Next please press the START STOP button Please confirm that the beep sounds 6 Press the RESET button to cancel the function setting mode 7 After completing the FUNCTION SETTING be sure to turn off the power and turn it on again CAUTION After turning off the power wait 10 seconds or more before ...

Page 103: ...the SET TEMP buttons to change the signal code between Match the code on the display to the air conditioner signal code If no buttons are pressed within 30 seconds after the signal code is displayed the system returns to the original clock display In this case start again from step 1 The air conditioner signal code is set to A prior to shipment CAUTION 1 Press the START STOP button until only the ...

Page 104: ... 0 28 0 0 168 6 0 36 5 0 129 8 0 46 10 0 100 9 0 57 15 0 79 1 0 71 20 0 62 5 0 86 25 0 49 8 1 03 30 0 40 0 1 23 35 0 32 4 1 43 40 0 26 3 1 65 45 0 21 6 1 88 50 0 17 8 2 11 55 0 14 8 2 34 60 0 12 3 2 57 65 0 10 3 2 79 70 0 8 7 3 00 75 0 7 4 3 19 80 0 6 3 3 37 85 0 5 4 3 54 90 0 4 6 3 69 95 0 4 0 3 83 100 0 3 4 3 96 105 0 3 0 4 07 110 0 2 6 4 17 115 0 2 3 4 26 120 0 2 0 4 33 Temp C Resistance k Volt...

Page 105: ...March 2018 Printed in Japan 3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan ...

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