Heiko JS026-D1 Service Manual Download Page 31 | Manualshive

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Service diagnosis

30 Domestic air conditioner

10.3.2 EEPROM abnormal

Indoor Display

ƾƶƾ

E4: Indoor EEPROM error

Indoor display

ƵƾƵ

F12: Outdoor EEPROM error; Outdoor LED1 flash 1 times

Method of The Data 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

Ŷ

Faulty EEPROM data

Causes

Ŷ

Faulty EEPROM

Ŷ

Faulty PCB

Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or parts

damage may be occurred.

Replace the indoor or outdoor mainboard.

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Summary of Contents for JS026-D1

Page 1: ...ing s or caution s to advise non technic al individuals of potentia l dangers in attemptin g to servic e a product Product s powered by electricit y should be service d or repaire d only by experience...

Page 2: ...roduction 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...

Page 3: ...on 1 1 Model name explanation A S 0 9 T A D H R A Indoor unit Type of indoor unit S wall mounted Nominal cooling capacity 9000BTU h Platform of indoor units T T platform 25T Platform Version number In...

Page 4: ...fore 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...

Page 5: ...ng 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 a...

Page 6: ...eneration 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...

Page 7: ...perly 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 powe...

Page 8: ...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...

Page 9: ...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 black...

Page 10: ...u s n o C r e w o P 1 4 2 6 W W P O C S R E E S 147 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 m m D W H s n o i s n e m i D m s n...

Page 11: ...vable Washable Mildew Proof Temperature control Microcomputer Control 0010401715Y 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...

Page 12: ...Piping diagrams Domestic air conditioner 5 Piping diagrams 10 EEV EEV...

Page 13: ...lay board 7 CON2 CON3 Connector for ion generator 8 CN23 red line Connector for communicate between the indoor board and the outdoor board 9 CN36 Connector for long range control 10 CN34 Connector for...

Page 14: ...Printed circuit board connector wiring diagram 12 Domestic air conditioner PCB 1...

Page 15: ...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 FUSE1 SW1 CN7 T3 15A 250VAC TO OUTDOOR UNIT 1 N C 3 L 2 W B Y...

Page 16: ...Backlash B the compressor will be shutted 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...

Page 17: ...opped for more than 3 minutes and the outdoor system still operates the system will be changed into light speed mode When the airflow speed has no delay from the high to low switching the speed should...

Page 18: ...ain at high speed for 3 minutes before the next switch Airgate location control the location for the airgate can be set according to your needs Coldair proof operation 1 The fan control functions as b...

Page 19: ...ration 7 1 7 Air refreshing This model does not choose After receiving the signal from the remote control HV series the background light of the health logo is green HS series the health indicator will...

Page 20: ...tting If the fan is at the low speed before the dormant setting the speed will not change 7 1 10 Urgent on off input Press the urgency button the buzzer will ring The system will enter the automatic m...

Page 21: ...system When the outdoor system operates if the indoor system operation differs from the outdoor system the abnormal operation malfunction will be reported 10s after the report the indoor system will...

Page 22: ...indoor system thus can quit the single operation mode 7 1 17 Power cut compensation Entering condition Press dormant button 10 times within 7 second the buzzer will ring 4 times and the present syste...

Page 23: ...9 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 24: ...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 5129 9 2132 8 9148 0 80 0 80 28 9 1454 8 8465 8 5496 0 84 0 83 29 8 7942 8 4964 8 2013 0 87 0...

Page 25: ...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 9113 1 7614 1 6219...

Page 26: ...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 68...

Page 27: ...Seivice diagnosis Domestic air conditioner 8 Dimensional drawings unit mm 9 Center of gravity unit mm 26...

Page 28: ...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 C...

Page 29: ...Malfunction F12 1 Outdoor EEPROM error Page 30 F1 2 The protection of IPM Page 34 F22 3 Overcurrent protection of AC electricity for the outdoor model Page 35 F3 4 Communication fault between the IPM...

Page 30: ...nput 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...

Page 31: ...a 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 Fa...

Page 32: ...e to breaking of the fan motor lead wires Detection error due to faulty indoor unit PCB Troubleshooting Caution Be sure to turn off power switch before connect or disconnect connector or else parts da...

Page 33: ...g condition and so on Malfunction Detection Malfunction when the data of EEPROM is error or the EEPROM is damaged Decision Conditions Supposed DC fan motor protection dues to the DC fan motor faulty C...

Page 34: ...power Measure the resistances between black line 0V and red line 310V between black line 0V and white line 15V of the fan motor NO YES The resistances are greater than 40K NO YES The motor of the out...

Page 35: ...to IPM protection due to over current Decision The compressor faulty leads to IPM protection Conditions circuit component of IPM is broken and led to IPM protection Supposed IPM protection dues to th...

Page 36: ...oubleshooting 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 m...

Page 37: ...ed 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...

Page 38: ...ply 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 dam...

Page 39: ...red 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 1...

Page 40: ...n 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 ag...

Page 41: ...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...

Page 42: ...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 an...

Page 43: ...rty 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 Ele...

Page 44: ...LINE TX 3 23 LINE RX 310V 3 5 SW 3 1 N 1 2 J3 5V 10K R30 10K R29 10K R102 10K R96 10K R8 10K R37 20K R103 10K R70 10K R72 10K R74 10K R75 10K R42 10K R109 2K R104 2K R69 2K R7 1K R86 1K R49 560 R33 1...

Page 45: ...FR106 1A 600V 500ns D20 FR106 1A 600V 500ns ZD202 1N4742A 12V 1W ZD003 1N4742A 12V 1W 15V 100mA 12V 900mA C002 104 630VDC E204 1000uF 25V 105 E8 22uF 50V 105 220 L 220 N S 1 BR 2 FB 4 V CC 5 NC 6 D ST...

Page 46: ...Sincere Forever...

Page 47: ...rnings or cautions to advise non technical individuals of potential dangers in attempting to service a product Products powered by electricity should be serviced or repaired only by experienced profes...

Page 48: ...Removal Procedure 1 Domestic Air Conditioner Removal of front panel front panel Remove the foam cushion 2 Loosen the screw...

Page 49: ...Removal Procedure 2 Domestic Air Conditioner Lift up the control box cover 3 Loosen the screw 4 Lift up the control box cover 5...

Page 50: ...en release the pivots on both sides of the unit to remove the front panel Removal of front panel Removal Procedure 3 Domestic Air Conditioner Pull the wires out of the control box 6 Remove the air fil...

Page 51: ...three 6 Removal Procedure 4 Domestic Air Conditioner Remove the casing 1 2 3...

Page 52: ...horizontal flap flap Removal Procedure 5 Domestic Air Conditioner and the stepper motor Loosen the screws and remove the stepper motor...

Page 53: ...2 Every blade go round and round then move it Removal Procedure 6 Domestic Air Conditioner horizontal louver and control box Loosen the screws...

Page 54: ...3 7 Domestic Air Conditioner Removal Procedure Loosen the hook and the service Cover Lift up the exchanger and remove it...

Page 55: ...Removal Procedure 8 Domestic Air Conditioner motor cover motor cover...

Page 56: ...Removal Procedure 9 Domestic Air Conditioner...

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