CIAC CG43JX009PH3N1H Service Manual
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CIAC CG43JX009PH3N1H Service Manual

CIAC CG43JX009PH3N1H Service Manual

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SEER21 SPLIT UNIT
CG43JX(009,012,018,024)PH3N1H
CH43JX(009,012,018,024)-H3N1H
SERVICE MANUAL
SEER21 SPLIT UNIT
This manual applies
to models:
CG43JX(009,012,018,024)PH3N1H
CH43JX(009,012,018,024)-H3N1H
Thank you for selecting CIAC Air Conditioning. Before use, please
read this manual carefully and store it for future refrence.
Carrier InterAmerica Corporation
Miami, Florida USA
CG43JX-SM

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Summary of Contents for CIAC CG43JX009PH3N1H

  • Page 1 CH43JX(009,012,018,024)-H3N1H SERVICE MANUAL SEER21 SPLIT UNIT This manual applies to models: CG43JX(009,012,018,024)PH3N1H CH43JX(009,012,018,024)-H3N1H Thank you for selecting CIAC Air Conditioning. Before use, please read this manual carefully and store it for future refrence. Carrier InterAmerica Corporation Miami, Florida USA CG43JX-SM...

  • Page 2: Table Of Contents

    CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2. Function ................................ 4 3. Dimension ..............................5 3.1 Indoor Unit ............................. 5 3.2 Outdoor Unit ..........................7 4. Refrigerant Cycle Diagram ........................12 5 Installation Details ............................13 5.1 Wrench torque sheet for installation ...................

  • Page 3: Precaution

    installing the product. Sharp edges could cause injury, be especially 1. Precaution careful of the case edges and the fins on the condenser and evaporator. 1.1 Safety Precaution  For installation, always contact the dealer or an authorized service center. ...
  • Page 4 from product, turn the breaker off or water is drained away properly. disconnect the power supply cable. A bad connection may cause water leakage.  There is risk of electric shock or fire. Keep level even when installing the  Stop operation and close the window product.
  • Page 5 through air inlet or outlet while the product is operated.  Do not drink the water drained from the product.  Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.  Replace the all batteries in the remote control with new ones of the same type.
  • Page 6 2. Model List Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units CH43JX009-H3N1H CG43JX009PH3N1H 3D inverter CH43JX012-H3N1H CG43JX012PH3N1H CH43JX018-H3N1H CG43JX018PH3N1H CH43JX024-H3N1H CG43JX024PH3N1H...

  • Page 7: Dimension

    3. Dimension 3.1 Indoor Unit Model CH43JX009-H3N1H CH43JX012-H3N1H CH43JX018-H3N1H 1080 CH43JX024-H3N1H 1080...
  • Page 8 For CH43JX009-H3N1H, CH43JX012-H3N1H, For CH43JX018-H3N1H, CH43JX024-H3N1H,...

  • Page 9: Outdoor Unit

    3.2 Outdoor Unit More than 30cm More than 60cm (Service space) More than 30cm More than 60cm More than 200cm...
  • Page 10 For CG43JX009PH3N1H, 779 W3 487 W1 300 D 770 W 70 W2 25 B1 61.5 A2 12 A1...
  • Page 11 For CG43JX012PH3N1H， 815 W3 514 W1 333 D 800 W 70 W2 62 B1 D2 D3 20 A1 61.6 A2...
  • Page 12 For CG43JX018PH3N1H,...
  • Page 13 For CG43JX024PH3N1H, 1030 W1 946 W 810 H 810 H 455 D3 673 A 403B 455D3 410 D 57 H1 117 H2...

  • Page 14: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR HEATING...

  • Page 15: Installation Details

    5 Installation Details 5.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 6500(663kgf.cm) 6700(683kgf.cm) 5.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Rated current of appliance Nominal cross-sectional area (mm²...

  • Page 16: Pipe Length And The Elevation

    The pipe length and refrigerant amount: Standard Max. Max. Additional Pipe size Model length Elevation Length refrigerant Liquid B (m) A (m) (g/m) 3/8’’ 1/4’’ CH43JX009-H3N1H+CG43JX009PH3N1H (Ф9.52) (Ф6.35) 1/4’’ 1/2’’ CH43JX012-H3N1H+CG43JX012PH3N1H (Ф12.7) (Ф6.35) 1/4’’ 1/2’’ CH43JX018-H3N1H+CG43JX018PH3N1H (Ф12.7) (Ф6.35) 3/8’’ 5/8’’ CH43JX024-H3N1H+CG43JX024PH3N1H (Ф15.9) (Ф9.52)

  • Page 17: Installation For The First Time

    connection to the vacuum pump. 5.4 Installation for the first time 4) Fully open the handle Lo of the manifold valve. Air and moisture in the refrigerant system have 5) Operate the vacuum pump to evacuate. undesirable effects as below: 6) Make evacuation for 30 minutes and check ●...
  • Page 18 3). Air purging. liquid charge. Open the valves on the charging cylinder and the 2). Purge the air from the charge hose. charge set. Purge the air by loosening the flare Open the valve at the bottom of the cylinder nut on the 2-way valve approximately 45’...

  • Page 19: Re-Installation While The Outdoor Unit Need To Be Repaired

    Be sure to use a hexagonal wrench to operate the tighten the flare nut on the 2-way valve. valve stems. 4). Check the gas leakage 2). Connect the charge hose with the push pin of Check the flare connections for gas leakage. handle lo to the 3-way valves gas service port.
  • Page 20 minutes after turning off the vacuum pump). turn off the air conditioner before disconnecting 5). Disconnect the charge hose from the vacuum the hose. pump. 6). Mounted the valve stem caps and the service port. Use torque wrench to tighten the service 2.

  • Page 21: Operation Characteristics

    6. Operation Characteristics Mode Cooling operation Heating operation Drying operation Temperature Room temperature 17℃~32℃ 0℃~30℃ 10℃~32℃ (62℉~90℉) (32℉~86℉) (50℉~90℉) Outdoor temperature 0℃~50℃ -15℃~30℃ 0℃~50℃ (32℉~122℉) (5℉~86℉) (32℉~122℉) -15℃~50℃ (5℉~122℉) (For the models with low temperature cooling system) CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally.

  • Page 22: Electronic Function

    Dispalys ‘ ’ during self clean operation (if 7. Electronic function aplicable). 7.1 Abbreviation Dispalys ‘ ’ under 8℃ heating operation (if T1: Indoor room temperature aplicable). T2: Coil temperature of evaporator When ECO function(optional) is actived,the T3: Coil temperature of condenser “...

  • Page 23: Main Protection

    7.3 Main Protection 7.3.1 Three minutes delay at restart for 7.3.9 Refrigerant leakage detection compressor This function is only active in cooling mode. It 1 minute delay for the 1 time stand-up and 3 can better prevent the compressor being minutes delay for others.

  • Page 24: Operation Modes And Functions

    7.4 Operation Modes and Functions 7.4.1 Fan mode ( 1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates same as in cooling mode.
  • Page 25 Setting fan When condenser temperature temp. is more T1-Td ℃(° F) Actual fan speed speed than setting value, the compressor will stop. H+(H+=H+G) H（=H） H-（H-=H-G) 7.4.2.5 Evaporator temperature protection M+(M+=M+Z) When Evaporator temperature temp.is less M(M=M) than setting value, the compressor will stop. M-(M-=M-Z) L+(L+=L+D) L(L=L)
  • Page 26 7.4.6 Forced operation function Forced cooling mode: The compressor and outdoor fan keep running TEstop and the indoor fan runs at low speed. After Decrease running for 30 minutes, AC will turn to auto TEdown mode with 24℃ setting temperature. Hold Forced auto mode: TEH2...
  • Page 27 (be lower than 30℃) every one hour, 2 hours mode, the louver will restore to the default later the setting temperature stops rising and angle. the indoor fan is fixed at low speed. When heating, setting temperature 7.4.12 8℃ Heating(optional) decreases 1℃...
  • Page 28 When the unit is running with follow me 7.4.15 Silence operation(optional) function, if the PCB doesn’t receive any signal Press the “silence” button on remote controller from remote controller for 7 minutes or pressing to initiate SILENCE function. When the Silence FOLLOW ME button again, the follow me function is activated, the compressor running function will be turned off automatically, and the...
  • Page 29 Reserve Reserve Reserve Reserve Reserve Reserve When the AC enter into the information enquiry status, it will display the code value in the next 25s the details are as follows. Enquiry Display value Meaning Remark information T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A value.

  • Page 30: Troubleshooting

    8. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.

  • Page 31: Indoor Unit Error Display

    8.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error ☆ 2 times Indoor / outdoor units communication error ☆ 3 times Zero-crossing signal detection error ☆ 4 times Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short ☆...

  • Page 32: Trouble Shooting

    Trouble shooting: Use the remote controller. If the unit does not respond to the remote, the indoor PCB needs to be replaced; if the unit does respond, then the display board needs to be replaced.
  • Page 33 8.2 Trouble shooting 8.2.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: Shut off the power supply and turn it on 2 minutes later.
  • Page 34 on your side. 8.2.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions seconds and this condition happens four times continuously. Supposed causes Wiring mistake ●...
  • Page 35 Remark: Use a multi meter to test the resistance of the reactor which does not connect with capacitor. The normal value should be around zero ohm. Otherwise, the reactor must have malfunction and need to be replaced.
  • Page 37 8.2.3 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When fan speed keeps too low or too high for certain time, the conditions unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 38 Index1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced.
  • Page 39 3. Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply)or 50V(115V power supply), the PCB must has problems and need to be replaced.
  • Page 40 8.2.4 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 8 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and compressor running frequency higher than 50Hz does not keep continuous 3 minutes, and this situation happens 3 times, the display area will show “EC”...
  • Page 41 8.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 42 8.2.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified conditions current detection circuit. Supposed causes Power supply problems. ● System blockage ● PCB faulty ● Wiring mistake ● Compressor malfunction ●...
  • Page 43 8.2.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off. conditions Supposed causes Wiring mistake ●...
  • Page 44  IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
  • Page 45 8.2.8 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Power supply problems. ● Wiring mistake ● PCB faulty ●...
  • Page 46 8.2.9 High temperature protection of IPM or compress top diagnosis and solution (P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes Installation mistake ● Power supply problems. ● System leakage or block ●...
  • Page 47 8.2.10 Inverter compressor drive error diagnosis and solution (P4) Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Supposed causes Wiring mistake ●...
  • Page 48 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 49 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C--K) ° C ° F ° C ° F ° C ° F ° C ° F K Ohm K Ohm K Ohm K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148...
  • Page 50 Appendix 2 Temperature Sensor Resistance Value Table for T5 (° C --K) ° C ° F ° C ° F ° C ° F ° C ° F K Ohm K Ohm K Ohm K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11...
  • Page 51 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22U ASM98D32U ASM135D23 ATF235D22 Blue - Red 1.57Ω 2.3Ω 1.75Ω 0.75Ω Blue - Black (20℃/68℉) (20℃/68℉) (20℃/68℉) (20℃/68℉) Red - Blue...
  • Page 52 Aurora 3D Inverter Series Service Manual 2016 ABSSA-B4-1601...
  • Page 53 CONTENTS 1. Precaution ..............................1 1.1 Safety Precaution .......................... 1 1.2 Warning ............................1 2. Function ................................ 4 3. Dimension ..............................5 3.1 Indoor Unit ............................. 5 3.2 Outdoor Unit ..........................7 4. Refrigerant Cycle Diagram ........................12 5 Installation Details ............................13 5.1 Wrench torque sheet for installation ...................

  • Page 54: Precaution

    installing the product. Sharp edges could cause injury, be especially 1. Precaution careful of the case edges and the fins on the condenser and evaporator. 1.1 Safety Precaution  For installation, always contact the dealer or an authorized service center. ...
  • Page 55 from product, turn the breaker off or water is drained away properly. disconnect the power supply cable. A bad connection may cause water leakage.  There is risk of electric shock or fire. Keep level even when installing the  Stop operation and close the window product.
  • Page 56 through air inlet or outlet while the product is operated.  Do not drink the water drained from the product.  Use a firm stool or ladder when cleaning or maintaining the product. Be careful and avoid personal injury.  Replace the all batteries in the remote control with new ones of the same type.
  • Page 57 2. Model List Model Names of Indoor/Outdoor Units Capacity Indoor units Outdoor units CH43JX009-H3N1H CG43JX009PH3N1H 3D inverter CH43JX012-H3N1H CG43JX012PH3N1H CH43JX018-H3N1H CG43JX018PH3N1H CH43JX024-H3N1H CG43JX024PH3N1H...

  • Page 58: Dimension

    3. Dimension 3.1 Indoor Unit Model CH43JX009-H3N1H CH43JX012-H3N1H CH43JX018-H3N1H 1080 CH43JX024-H3N1H 1080...
  • Page 59 For CH43JX009-H3N1H, CH43JX012-H3N1H, For CH43JX018-H3N1H, CH43JX024-H3N1H,...

  • Page 60: Outdoor Unit

    3.2 Outdoor Unit More than 30cm More than 60cm (Service space) More than 30cm More than 60cm More than 200cm...
  • Page 61 For CG43JX009PH3N1H, 779 W3 487 W1 300 D 770 W 70 W2 25 B1 61.5 A2 12 A1...
  • Page 62 For CG43JX012PH3N1H， 815 W3 514 W1 333 D 800 W 70 W2 62 B1 D2 D3 20 A1 61.6 A2...
  • Page 63 For CG43JX018PH3N1H,...
  • Page 64 For CG43JX024PH3N1H, 1030 W1 946 W 810 H 810 H 455 D3 673 A 403B 455D3 410 D 57 H1 117 H2...

  • Page 65: Refrigerant Cycle Diagram

    4. Refrigerant Cycle Diagram INDOOR OUTDOOR CHECK VALVE LIQUID SIDE (Heating Model only) 2-WAY VALVE CAPILIARY TUBE HEAT HEAT EXCHANGE EXCHANGE (EVAPORATOR) (CONDENSER) T1 Room temp. sensor T2 Evaporator temp. sensor GAS SIDE 4-WAY VALVE 3-WAY VALVE ACCUMULATOR COOLING COMPRESSOR HEATING...

  • Page 66: Installation Details

    5 Installation Details 5.1 Wrench torque sheet for installation Outside diameter Torque Additional tightening torque inch N.cm N.cm Ф6.35 1500(153kgf.cm) 1600(163kgf.cm) Ф9.52 2500(255kgf.cm) 2600(265kgf.cm) Ф12.7 3500(357kgf.cm) 3600(367kgf.cm) Ф15.9 4500(459kgf.cm) 4700(479kgf.cm) Ф19 6500(663kgf.cm) 6700(683kgf.cm) 5.2 Connecting the cables The power cord of connect should be selected according to the following specifications sheet. Rated current of appliance Nominal cross-sectional area (mm²...

  • Page 67: Pipe Length And The Elevation

    The pipe length and refrigerant amount: Standard Max. Max. Additional Pipe size Model length Elevation Length refrigerant Liquid B (m) A (m) (g/m) 3/8’’ 1/4’’ CH43JX009-H3N1H+CG43JX009PH3N1H (Ф9.52) (Ф6.35) 1/4’’ 1/2’’ CH43JX012-H3N1H+CG43JX012PH3N1H (Ф12.7) (Ф6.35) 1/4’’ 1/2’’ CH43JX018-H3N1H+CG43JX018PH3N1H (Ф12.7) (Ф6.35) 3/8’’ 5/8’’ CH43JX024-H3N1H+CG43JX024PH3N1H (Ф15.9) (Ф9.52)

  • Page 68: Installation For The First Time

    connection to the vacuum pump. 5.4 Installation for the first time 4) Fully open the handle Lo of the manifold valve. Air and moisture in the refrigerant system have 5) Operate the vacuum pump to evacuate. undesirable effects as below: 6) Make evacuation for 30 minutes and check ●...
  • Page 69 3). Air purging. liquid charge. Open the valves on the charging cylinder and the 2). Purge the air from the charge hose. charge set. Purge the air by loosening the flare Open the valve at the bottom of the cylinder nut on the 2-way valve approximately 45’...
  • Page 70 Be sure to use a hexagonal wrench to operate the tighten the flare nut on the 2-way valve. valve stems. 4). Check the gas leakage 2). Connect the charge hose with the push pin of Check the flare connections for gas leakage. handle lo to the 3-way valves gas service port.
  • Page 71 minutes after turning off the vacuum pump). turn off the air conditioner before disconnecting 5). Disconnect the charge hose from the vacuum the hose. pump. 6). Mounted the valve stem caps and the service port. Use torque wrench to tighten the service 2.

  • Page 72: Operation Characteristics

    6. Operation Characteristics Mode Cooling operation Heating operation Drying operation Temperature Room temperature 17℃~32℃ 0℃~30℃ 10℃~32℃ (62℉~90℉) (32℉~86℉) (50℉~90℉) Outdoor temperature 0℃~50℃ -15℃~30℃ 0℃~50℃ (32℉~122℉) (5℉~86℉) (32℉~122℉) -15℃~50℃ (5℉~122℉) (For the models with low temperature cooling system) CAUTION: 1. If the air conditioner is used beyond the above conditions, certain safety protection features may come into operation and cause the unit to operate abnormally.

  • Page 73: Electronic Function

    Dispalys ‘ ’ during self clean operation (if 7. Electronic function aplicable). 7.1 Abbreviation Dispalys ‘ ’ under 8℃ heating operation (if T1: Indoor room temperature aplicable). T2: Coil temperature of evaporator When ECO function(optional) is actived,the T3: Coil temperature of condenser “...

  • Page 74: Main Protection

    7.3 Main Protection 7.3.1 Three minutes delay at restart for 7.3.9 Refrigerant leakage detection compressor This function is only active in cooling mode. It 1 minute delay for the 1 time stand-up and 3 can better prevent the compressor being minutes delay for others.

  • Page 75: Operation Modes And Functions

    7.4 Operation Modes and Functions 7.4.1 Fan mode ( 1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no setting temperature is displayed. (3) Indoor fan can be set to high/med/low/auto. (4) The louver operates same as in cooling mode.
  • Page 76 Setting fan When condenser temperature temp. is more T1-Td ℃(° F) Actual fan speed speed than setting value, the compressor will stop. H+(H+=H+G) H（=H） H-（H-=H-G) 7.4.2.5 Evaporator temperature protection M+(M+=M+Z) When Evaporator temperature temp.is less M(M=M) than setting value, the compressor will stop. M-(M-=M-Z) L+(L+=L+D) L(L=L)
  • Page 77 7.4.6 Forced operation function Forced cooling mode: The compressor and outdoor fan keep running TEstop and the indoor fan runs at low speed. After Decrease running for 30 minutes, AC will turn to auto TEdown mode with 24℃ setting temperature. Hold Forced auto mode: TEH2...
  • Page 78 (be lower than 30℃) every one hour, 2 hours mode, the louver will restore to the default later the setting temperature stops rising and angle. the indoor fan is fixed at low speed. When heating, setting temperature 7.4.12 8℃ Heating(optional) decreases 1℃...
  • Page 79 When the unit is running with follow me 7.4.15 Silence operation(optional) function, if the PCB doesn’t receive any signal Press the “silence” button on remote controller from remote controller for 7 minutes or pressing to initiate SILENCE function. When the Silence FOLLOW ME button again, the follow me function is activated, the compressor running function will be turned off automatically, and the...
  • Page 80 Reserve Reserve Reserve Reserve Reserve Reserve When the AC enter into the information enquiry status, it will display the code value in the next 25s the details are as follows. Enquiry Display value Meaning Remark information T1,T2,T3,T4, -1F,-1E,-1d,-1c,- -25,-24,-23,-22,-21,-2 1. All the displaying temperature is actual T2B,TP,TH, 1b,-1A value.

  • Page 81: Troubleshooting

    8. Troubleshooting Safety Electricity power is still kept in capacitors even the power supply is shut off. Do not forget to discharge the electricity power in capacitor. Electrolytic Capacitors (HIGH VOLTAGE! CAUTION!) For other models, please connect discharge resistance (approx.100Ω 40W) or soldering iron (plug) between +, - terminals of the electrolytic capacitor on the contrary side of the outdoor PCB.

  • Page 82: Indoor Unit Error Display

    8.1 Indoor Unit Error Display Operation Timer lamp Display LED STATUS lamp ☆ 1 time Indoor unit EEPROM parameter error ☆ 2 times Indoor / outdoor units communication error ☆ 3 times Zero-crossing signal detection error ☆ 4 times Indoor fan speed has been out of control Indoor room temperature sensor T1 open circuit or short ☆...

  • Page 83: Trouble Shooting

    Trouble shooting: Use the remote controller. If the unit does not respond to the remote, the indoor PCB needs to be replaced; if the unit does respond, then the display board needs to be replaced.
  • Page 84 8.2 Trouble shooting 8.2.1 EEPROM parameter error diagnosis and solution(E0/F4) E0/F4 Error Code Malfunction decision Indoor or outdoor PCB main chip does not receive feedback conditions from EEPROM chip. Supposed causes Installation mistake ● PCB faulty ● Trouble shooting: Shut off the power supply and turn it on 2 minutes later.
  • Page 85 on your side. 8.2.2 Indoor / outdoor unit’s communication diagnosis and solution(E1) Error Code Malfunction decision Indoor unit does not receive the feedback from outdoor unit during conditions seconds and this condition happens four times continuously. Supposed causes Wiring mistake ●...
  • Page 86 Remark: Use a multi meter to test the resistance of the reactor which does not connect with capacitor. The normal value should be around zero ohm. Otherwise, the reactor must have malfunction and need to be replaced.
  • Page 88 8.2.3 Fan speed has been out of control diagnosis and solution(E3) E3/F5 Error Code Malfunction decision When fan speed keeps too low or too high for certain time, the conditions unit will stop and the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 89 Index1: 1:Indoor or Outdoor DC Fan Motor(control chip is in fan motor) Power on and when the unit is in standby, measure the voltage of pin1-pin3, pin4-pin3 in fan motor connector. If the value of the voltage is not in the range showing in below table, the PCB must has problems and need to be replaced.
  • Page 90 3. Indoor AC Fan Motor Power on and set the unit running in fan mode at high fan speed. After running for 15 seconds, measure the voltage of pin1 and pin2. If the value of the voltage is less than 100V(208~240V power supply)or 50V(115V power supply), the PCB must has problems and need to be replaced.
  • Page 91 8.2.4 Refrigerant Leakage Detection diagnosis and solution(EC) Error Code Malfunction decision Define the evaporator coil temp.T2 of the compressor just starts conditions running as Tcool. In the beginning 8 minutes after the compressor starts up, if T2 ＜Tcool－2℃ does not keep continuous 4 seconds and compressor running frequency higher than 50Hz does not keep continuous 3 minutes, and this situation happens 3 times, the display area will show “EC”...
  • Page 92 8.2.5 Open circuit or short circuit of temperature sensor diagnosis and solution(E5) E4/E5/F1/F2/F3 Error Code Malfunction decision If the sampling voltage is lower than 0.06V or higher than 4.94V, conditions the LED will display the failure. Supposed causes Wiring mistake ●...
  • Page 93 8.2.6 Overload current protection diagnosis and solution(F0) Error Code Malfunction decision An abnormal current rise is detected by checking the specified conditions current detection circuit. Supposed causes Power supply problems. ● System blockage ● PCB faulty ● Wiring mistake ● Compressor malfunction ●...
  • Page 94 8.2.7 IPM malfunction or IGBT over-strong current protection diagnosis and solution(P0) Error Code Malfunction decision When the voltage signal that IPM send to compressor drive chip is abnormal, the display LED will show “P0” and AC will turn off. conditions Supposed causes Wiring mistake ●...
  • Page 95  IPM continuity check Turn off the power, let the large capacity electrolytic capacitors discharge completely, and dismount the IPM. Use a digital tester to measure the resistance between P and UVWN; UVW and N. Digital tester Normal resistance value Digital tester Normal resistance value (+)Red...
  • Page 96 8.2.8 Over voltage or too low voltage protection diagnosis and solution(P1) Error Code Malfunction decision An abnormal voltage rise or drop is detected by checking the conditions specified voltage detection circuit. Supposed causes Power supply problems. ● Wiring mistake ● PCB faulty ●...
  • Page 97 8.2.9 High temperature protection of IPM or compress top diagnosis and solution (P2) Error Code Malfunction decision If the sampling voltage is not 5V, the LED will display the failure. conditions Supposed causes Installation mistake ● Power supply problems. ● System leakage or block ●...
  • Page 98 8.2.10 Inverter compressor drive error diagnosis and solution (P4) Error Code Malfunction decision An abnormal inverter compressor drive is detected by a special conditions detection circuit, including communication signal detection, voltage detection, compressor rotation speed signal detection and so on. Supposed causes Wiring mistake ●...
  • Page 99 Main parts check 1. Temperature sensor checking Disconnect the temperature sensor from PCB, measure the resistance value with a tester. Temperature Sensors. Room temp.(T1) sensor, Indoor coil temp.(T2) sensor, Outdoor coil temp.(T3) sensor, Outdoor ambient temp.(T4) sensor, Compressor discharge temp.(T5) sensor. Measure the resistance value of each winding by using the multi-meter.
  • Page 100 Appendix 1 Temperature Sensor Resistance Value Table for T1,T2,T3,T4 (° C--K) ° C ° F ° C ° F ° C ° F ° C ° F K Ohm K Ohm K Ohm K Ohm 115.266 12.6431 2.35774 0.62973 108.146 12.0561 2.27249 0.61148...
  • Page 101 Appendix 2 Temperature Sensor Resistance Value Table for T5 (° C --K) ° C ° F ° C ° F ° C ° F ° C ° F K Ohm K Ohm K Ohm K Ohm 542.7 68.66 13.59 3.702 511.9 65.62 13.11...
  • Page 102 2.Compressor checking Measure the resistance value of each winding by using the tester. Position Resistance Value ASN98D22U ASM98D32U ASM135D23 ATF235D22 Blue - Red 1.57Ω 2.3Ω 1.75Ω 0.75Ω Blue - Black (20℃/68℉) (20℃/68℉) (20℃/68℉) (20℃/68℉) Red - Blue...

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