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Service diagnosis

Domestic air conditioner

10.3 Error Codes and Description indoor display

Code indication

fault description

Reference

Page

Indoor displaying panel code

indication

Outdoor

(LED1

flash

times)

Other

display

Only For 498 and

498A display

(Red/Green Time Run

□

★

Flash

■

Off

Indoor and
Outdoor

■

★

Communication

fault

between

indoor

and

outdoor units

Page .42

Indoor
Malfunction

★

■

Room temperature sensor
failure

Page 31.

★

□

Heat-exchange

sensor

failure

Page 31.

★

□

★

Indoor EEPROM error

Page 32.

E14

■

□

★

Indoor

fan

motor

malfunction

Page 33

Outdoor
Malfunction

F12

■

★

■

Outdoor EEPROM error

Page .32

□

★

The protection of IPM

Page .36

F22

★

■

Overcurrent protection
of AC electricity for
the outdoor model

Page .37

■

★

■

Communication

fault

between the IPM and
outdoor PCB

Page.39

F19

■

★

□

Power voltage is too high
or low

Page .40

■

★

■

Overheat protection for
Discharge temperature

Page .41

F21

□

★

Defrost

temperature

sensor failure

Page

31.

■

★

■

Suction

temperature

sensor failure

Page .3

□

★

■

Ambient

temperature

sensor failure

Page .3

F25

★

□

■

Discharge

temperature

sensor failure

Page .3

F11

■

★

■

deviate from the normal
for the compressor

Page .44

F28

■

★

■

Loop of the station
detect error

Page .44

Содержание AS50S2SF2FA-2

Страница 1: ...e non technical individuals 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 WARNING All rights reserved Unauthorized copying and dist...

Страница 2: ...ntroduction 1 2 Features 7 3 Specifications 8 4 Sensors list 9 5 Piping diagrams 10 6 Printed Circuit Board Connector Wiring Diagram 11 7 Functions and Control 8 Dimensional drawings 9 Center of gravity 10 Service diagnosis 11 Wiring diagrams 14 40 26 25 25 ...

Страница 3: ...1 Model name explanation Platform of indoor units F F platform A S 5 0 S 2 S F F 2 Nominal cooling capacity 18000BTU h Supermatch second generation normal efficiency version 2 R32 refrigerant A 220 240V50HZ 1ph Indoor unit Type of indoor unit S wall mounted ...

Страница 4: ...t before 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 refriger...

Страница 5: ...ing the welder in an enclosed room can cause oxygen deficiency 1 2 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...

Страница 6: ...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 ...

Страница 7: ...roperly water can enter the room and wet the furniture and floor 1 2 3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose then insert the plug into a power outlet all the way If the plug has dust or loose connection it can cause an electrical shock or fire If the power cable and lead wires have scratches or deteriorated be sure to replace them Damage...

Страница 8: ...k Be sure to check the drainage of the indoor unit after the repair Faulty drainage can cause the water to enter the room and wet the furniture and floor 1 2 4 Using Icons Icons are used to attract the attention of the reader to specific information The meaning of each icon is described in the table below 1 2 5 Using Icons List Icon Type of Information Description Note Note A note provides informa...

Страница 9: ...setting temperature and the indoor noise can be adjusted to a more comfortable level when you set the sleep mode during night sleep Super match One outdoor unit can match two or more indoor unit DIY auto mode Adjust the last fixed operation mode automatically Turbo mode Quick cooling or heating Auto restart Automatic return to previous operation conditions after sudden power blackout 24 hours time...

Страница 10: ...p m u s n o C r e w o P 4 6 7 2 W W P O C S R E E S 253 h W K n o i t p m u s n o c y g r e n e l a u n n A h m l a v o m e R e r u t s i o M TECHNICAL SPECIFICATIONS 1009 223 327 m m D W H s n o i s n e m i D Packaged Dimensions 1080 290 400 m m D W H 0 2 1 G K t h g i e W 0 5 1 G K t h g i e w s s o r G r o l o C Sound level Sound peessure Hi Mid Lo Si Sound power high 2 10 1401 45 41 37 28 57 d...

Страница 11: ...er Type ML fin 7HI HX tube 4 1 6 1 3 h c t i f e g a t s t n e m g e S d r a w n w o D l a t n o z i r o H t f e L t h g i R l o r t n o c n o i t c e r i d r i A Air filter Removable Washable Mildew Proof Temperature control Microcomputer Control 0010401715FU l e d o m r e l l o r t n o c e t o m e R Note the data are based on the conditions shown in the table below h t g n e l g n i p i P g n i ...

Страница 12: ... Piping diagrams Domestic air conditioner 5ˊPiping diagrams 10 ...

Страница 13: ...11 CN11 Connector for RIGHT LEFT STEP motor 5 CN21 white line CN52 black line Connector for indoor terminal N and L 6 CN8 Connector for display board 7 CN23 red line Connector for communicate between the indoor board and the outdoor board 8 CN36 Connector for long range control 9 CN34 Connector for wifi Module 10 CN2 Connector for wired controller 11 CN51 Connector for room card Note Other designa...

Страница 14: ...Domestic air conditioner PCB 12 CN8 CN9 CN21 CN36 CN23 CN6 CN52 CN5 CN14 CN2 CN34 CN15 CN11 CN51 CN5 ...

Страница 15: ...ate 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 1 Automatic When Tr Ts 3 high speed When Ts 1 Tr Ts 3 medium speed When Tr Ts 1 low speed When the sensor is off low speed When the airflow speed has no delay from the high to low switching the speed should be delayed for 3 minut...

Страница 16: ...d mode When the airflow speed has no delay from the high to low switching the speed should be delayed for 3 minutes remain at high speed for 3 minutes before the next switch Manual When the sensor is off or Tr Ts 3 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 preventi...

Страница 17: ...roof operation 1 The fan control functions as below Residue heat sending The indoor fan will send the residue heat at a low speed for 20 seconds 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 THHOT0 Defrosting When the system receives the defrosting signal from outdoors the ...

Страница 18: ...no Aqua will be turned on when the fan operates 7 1 8 Timing You 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 turne...

Страница 19: ...er 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 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 ope...

Страница 20: ...for stop According to the signals the malfunction resume presentation finishes The resume restores after the power supply restores 7 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 i...

Страница 21: ...e indoor system Quitting conditions Press dormant button 10 times within 7 seconds and the buzzer will ring twice 7 1 18 Test program First connect the test program terminal on the mainboard Then connect the system to the power circuit The test program will operate as follows HV series display The buzzer rings for one time the signal will be sent to outdoor system for 0 5 second the violet is sent...

Страница 22: ... 63 4 68 12 164 399 26 21 94 64 4 51 11 154 983 27 20 94 65 4 35 10 146 153 28 19 99 66 4 19 9 137 87 29 19 09 67 4 04 8 130 096 30 18 23 68 3 9 7 122 799 31 17 42 69 3 76 6 115 946 32 16 65 70 3 63 5 109 51 33 15 97 71 3 5 4 103 462 34 15 22 72 3 38 3 97 779 35 14 56 73 3 26 2 92 437 36 13 93 74 3 15 1 87 415 37 13 34 75 3 04 0 82 691 38 12 77 76 2 94 1 78 248 39 12 23 77 2 84 2 74 067 40 11 71 7...

Страница 23: ...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 1 47 10 53 6294 49 6244 45 8771 1 56 1 46 9 50 8956 47 1666 43 6714 1 54 1 44 8 48 3178 44 8454 41 5851 1 51 1 42 7 45 8860 42 6525 39 6112 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...

Страница 24: ... 84 0 83 29 8 7942 8 4964 8 2013 0 87 0 86 30 8 4583 8 1621 7 8691 0 91 0 90 31 8 1371 7 8428 7 5522 0 95 0 93 32 7 8299 7 5377 7 2498 0 98 0 97 33 7 5359 7 2461 6 9611 1 02 1 00 34 7 2546 6 9673 6 6854 1 06 1 04 35 6 9852 6 7008 6 4222 1 10 1 07 36 6 7273 6 4459 6 1707 1 13 1 11 37 6 4803 6 2021 5 9304 1 17 1 14 38 6 2437 5 9687 5 7007 1 21 1 18 39 6 0170 5 7454 5 4812 1 25 1 22 40 5 7997 5 5316 ...

Страница 25: ...614 1 6219 2 73 2 54 74 1 8533 1 7064 1 5697 2 78 2 58 75 1 7974 1 6533 1 5194 2 83 2 63 76 1 7434 1 6021 1 4710 2 88 2 67 77 1 6913 1 5528 1 4243 2 92 2 71 78 1 6409 1 5051 1 3794 2 97 2 75 79 1 5923 1 4592 1 3360 3 02 2 80 80 1 5454 1 4149 1 2942 3 07 2 84 81 1 5000 1 3721 1 2540 3 12 2 88 82 1 4562 1 3308 1 2151 3 17 2 93 83 1 4139 1 2910 1 1776 3 22 2 97 84 1 3730 1 2525 1 1415 3 27 3 01 85 1 ...

Страница 26: ...61 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 4404 5 10 ...

Страница 27: ...Seivice diagnosis Domestic air conditioner 8 Dimensional drawings 9 Center of gravity unit mm 26 354 2 533 1010 327 1010 327 172 79 2 79 2 285 222 222 111 ...

Страница 28: ...pplied Check the indoor PCB Check to 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 Equipment operates but does not cool or does not heat only for heat pump Check for faulty operation of the electronic expansion valve Set the units to cooling operation and compare the temperatures of the ...

Страница 29: ... Page 32 E14 Indoor fan motor malfunction Page 33 Outdoor Malfunction F12 1 Outdoor EEPROM error Page 32 F1 2 The protection of IPM Page 36 F22 3 Overcurrent protection of AC electricity for the outdoor model Page 37 F3 4 Communication fault between the IPM and outdoor PCB Page 39 F19 6 Power voltage is too high or low Page 40 F4 8 Overheat protection for Discharge temperature Page 41 F21 10 Defro...

Страница 30: ...nput 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...

Страница 31: ... 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 ...

Страница 32: ...ol voltage pins 4 5 4 Check rotation command voltage output pins 4 6 5 Check rotation pulse input pins 4 7 Notes the a c is electrifying don t pull out or insert the terminals of the motor else the motor would be damaged Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred 10 3 4 Outdoor DC fan motor fault Outdoor disp...

Страница 33: ... motor of the outdoor unit is damaged and needs replacing NO the resistances between 0V and 310V between 0V and 15V of the fan terminal of outdoor pcb are greater than 10MΩ The module pcb is damaged replace it with a new one The outdoor pcb is damaged replace it with a new one YES The motor and outdoor pcb are well YES NO 10 3 5 IPM protection Outdoor display LED1 flash 2 times Method of IPM prote...

Страница 34: ...r electronic expansion valve faulty or under charged with gas which can be judged through the pressure of the measuring system 2 The shaft of compressor is seized and the compressor needs replacing Test IPM module resistance between P and U V W Then test IPM module resistance between N and U V W The resistances range are between 1MΩ with 10MΩ and they are similar NO YES 10 3 6 Over current of the ...

Страница 35: ...ted after it has run for some time Check the power supply is too low or too high NO 10 3 7 The communication fault between IPM and outdoor PCB Outdoor display LED1 flash 4 times Method of Communication is detected by checking the IPM module and the outdoor PCB Malfunction Detection Malfunction The outdoor PCB broken leads to communication fault Decision The IPM module broken leads to communication...

Страница 36: ...ly 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 Y...

Страница 37: ...d Electrify 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 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...

Страница 38: ... Be sure to turn off power switch before connect or disconnect connector or else parts damage may be occurred Restart the a c and it becomes normally If starting up normally but malfunction occurs again after a while The outdoor mainboard needs dehumidification The outdoor mainboard needs dedust Check whether the linking cable between the indoor and outdoor is well connected or whether its core wi...

Страница 39: ...tdoor pcb is damaged replace it with a new one NO Measure the voltage Between 3 and 4 of IC9 on the Outdoor mainboard with a Multimete The voltage is a constant value of 0V DC to 5V DC The outdoor pcb is damaged replace it with a new one YES NO The outdoor pcb is well and then check the cable If the voltage is a constant value of 0V DC to 5V DC Or the voltage between Communication line red and N w...

Страница 40: ...lty 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 start...

Страница 41: ...irty heat exchanger Faulty heat exchange sensor 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 65 The malfunction is reported after the machine has run for some time 1 Check room temp...

Страница 42: ...93412 Notes 1 The dotted parts are optional 2 The two pins of CN51 should be shorted when the second channel RC of SW2 is selected UP DOWN STEPMOTOR M FU SE 1 CN8 T3 15A 250VAC TO OUTDOOR UNIT 1 N C 3 L 2 W B Y G GND C N 14 CN6 L E F T RIGHT S T E P M O T O R CN11 CN5 R L CN21 N S CN51 CN9 CN52 CN23 CN34 WIFI CN2 W IRED CONTROLLER ROOM CARD CN5 DC FAN MOTOR DISPLAY BOARD SW2 1 2 3 4 ON HUNAM SENSO...

Страница 43: ...17 100Ω R21 100Ω R97 100Ω R98 10nF C24 100nF C12 100nF C27 10nF C21 10nF C29 10nF C3 1nF C19 100nF C5 4 7uF 1206 C30 4 7uF 1206 C31 D15 RLS 4148 D16 RLS 4148 2SD1781KT146R N1 2SD1781KT146R N3 1 2 3 4 5 6 7 8 B8B PH K S CN7 1 2 3 4 5267 04A CN34 1 2 3 4 4 1971798 1 CN6 1 2 3 B3B XH A CN36 1 2 B2B XH A CN51 1 2 B2B XH A CN14 100Ω R93 10K R36 R K 1 39 1nF C14 TLP 421 IC7 10K R59 10K R64 10K R68 TLP 4...

Страница 44: ...100V D13 BOOT 1 Vin 2 EN 3 SS 4 VS ENSE 5 COMP 6 GND 7 PH 8 IC5 TPS5402 220V_L BALCK L 220 VAC 220V_N 220 L 220 N CY4 2 2nF 250VAC CY5 2 2nF 250VAC CN21 1 CN52 1 CN27 L1 100nF 275V CX2 1 D250 CN17 1 D250 CN21 TVR 14621 620V RV1 1 2 3 4 LB 2271 3 2m H 0 35A L1 470nF 275V CX1 47K 2W R78 100nF C7 4 7nF 250VAC CY6 4 7nF 250VAC CY1 1N4746A 18V 1W ZD001 1N5399 1500mA 1000V D6 1N5399 1 500m A 1000V D7 1N...

Страница 45: ...N4007 1 000m A 1000V D11 2SD1781KT146R N5 1nF C9 1 D250 CN23 TLP 851 PC 851 IC4 TLP 421 IC6 330 R13 1N4007 1 000m A 1000V D17 3 25 LINE TX 3 23 LINE RX 5V 12V 12V 12 SIG GND WIRED 4 7K 10K N6 KRC119S 10K R115 10K R117 10K R112 10K R113 1K R116 10nF C25 1nF C34 D25 RLS 4148 D26 RLS4148 2SD1781KT146R N4 1 2 3 4 B4B XH A CONTR OLLER CN2 1K R44 1K R46 1K R47 0Ω R55 100nF C33 D4 RLS 4148 D10 RLS 4148 D...

Страница 46: ...Wall Mounted Type DC Inverter FREE MATCH N Series SERIES 50F ...

Страница 47: ...rocedure Points 1 Features 2 Remove the front panel 1 2 Hold the front panel by the tabs on the both sides and lift it until it stops with a click Loosen the screw and lift up the casing cover Loosen the screw and lift up the control box cover ...

Страница 48: ...ift the first air filter upwards slightly and then pull it out downwards Lift the second air filter upwards slightly and then pull it out downwards Remove the horizontal flap 1 Release the side of pivot and then release the Center of the pivot Bend the horizontal blade slightly and remove it The horizontal flap is Double First release the down of the horizontal flap and then release the up of the ...

Страница 49: ...3 Remove the casing Step Procedure Points 1 2 Release the screw covers 3EA Loosen the marked screw 7EA lift up the screw covers and then release them ...

Страница 50: ...ked hooks 4EA and then Pull the front grille out Horizontally and remove it When assembling install the front grille horizontally so as not to stuff the flap inside When assembling make sure the four hooks are caught properly HOLE 4EA HOOK 4EA ...

Страница 51: ...e stepping motor and the control box Step Procedure Points 1 Loosen the stepping motor screws 4EA and then remove the stepping motor Remove the control box 1 Loosen the control Box screws 1 EA and then pull it ...

Страница 52: ...Exchanger Step Procedure Points 1 2 3 4 Loosen the marked screws 2EA Pull mounting plate and heat exchanger bracket and then release them Release the fixture plate from the base Frame hook and remove it Loosen the screws ...

Страница 53: ...rocedure Points 5 Remove the heat Exchanger Remove Fan motor 1 2 3 Loosen the marked screws 4EA and release the cover of fan motor Loosen the marked screw 1EA and remove fan motor Lift up the fan and remove it ...

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