Daikin FTXR42EV1B9 Spezifikationen

Inverter PairWall Mounted Type E-Series[Applied Models]z Inverter Pair : Heat PumpSiBE04-624_B

Introduction SiBE04-624_Bix1.2 Used IconsIcons are used to attract the attention of the reader to specific information. The meaning of each icon is de

Troubleshooting SiBE04-624_B90 Service DiagnosisTroubleshootingCheck No.02Refer to P.135Turn off the power supply and disconnect the fan motor connect

SiBE04-624_B TroubleshootingService Diagnosis 912.11 Streamer Unit AbnormalityError CodeAHMethod of Error DetectionError Decision ConditionsIf the er

Troubleshooting SiBE04-624_B92 Service DiagnosisTroubleshootingNote: 1. Be careful not to break the electrode in cleaning.2. Since the electrode part

SiBE04-624_B TroubleshootingService Diagnosis 932.12 Thermistor or Related Abnormality (Indoor Unit)Error CodeC4, C9 Method of Error DetectionThe temp

Troubleshooting SiBE04-624_B94 Service Diagnosis2.13 Front Panel Open / Close AbnormalityError CodeC7 Method of Error DetectionError Decision Conditio

SiBE04-624_B TroubleshootingService Diagnosis 952.14 Humidity Sensor AbnormalityError CodeCCMethod of Error DetectionSensor abnormality is detected by

Troubleshooting SiBE04-624_B96 Service Diagnosis2.15 Refrigerant ShortageError CodeU0Method of Error DetectionRefrigerant shortage detection I:Refrige

SiBE04-624_B TroubleshootingService Diagnosis 97TroubleshootingCheck No.01Refer to P.134Check No.12Refer to P.136(R18129)CautionYESNGNONOYESYESYESNOYE

Troubleshooting SiBE04-624_B98 Service Diagnosis2.16 Low-voltage Detection or Over-voltage DetectionError CodeU2Method of Error DetectionLow-voltage d

SiBE04-624_B TroubleshootingService Diagnosis 99TroubleshootingCorrect the power supply.Replace the outdoor unit PCB.Check for such factors for a long

SiBE04-624_BList of Functions 1Part 1List of Functions1. Functions...

Troubleshooting SiBE04-624_B100 Service Diagnosis2.17 Signal Transmission Error (between Indoor Unit and Outdoor Unit)Error CodeU4Method of Error Dete

SiBE04-624_B TroubleshootingService Diagnosis 1012.18 Outdoor Unit PCB Abnormality or Communication Circuit AbnormalityError CodeU4Method of Error Det

Troubleshooting SiBE04-624_B102 Service DiagnosisTroubleshootingYES(R18131)CautionCheck the power supply voltage.Check indoor unit also, because a com

SiBE04-624_B TroubleshootingService Diagnosis 103Check No.11Refer to P.135NO(R18132)Disturbance?YESNOGrounded?YESYESTurn off the power supply. Disconn

Troubleshooting SiBE04-624_B104 Service Diagnosis2.19 Signal Transmission Error on Outdoor Unit PCBError CodeU7Method of Error DetectionCommunication

SiBE04-624_B TroubleshootingService Diagnosis 1052.20 Unspecified Voltage (between Indoor Unit and Outdoor Unit)Error CodeUAMethod of Error DetectionT

Troubleshooting SiBE04-624_B106 Service Diagnosis2.21 Incomplete Setting for Hose LengthError CodeUAMethod of Error DetectionThis fault occurs when th

SiBE04-624_B TroubleshootingService Diagnosis 1072.22 Outdoor Unit PCB AbnormalityError CodeE1Method of Error DetectionThe system checks if the micro

Troubleshooting SiBE04-624_B108 Service Diagnosis2.23 OL Activation (Compressor Overload)Error CodeE5Method of Error DetectionA compressor overload is

SiBE04-624_B TroubleshootingService Diagnosis 109TroubleshootingCheck No.01Refer to P.134Check No.12Refer to P.136Check No.13Refer to P.137Check No.14

Functions SiBE04-624_B2 List of Functions1. FunctionsCategory FunctionsFTXR28/42/50EV1B9RXR28/42/50EV1B9Category FunctionsFTXR28/42/50EV1B9RXR28/42/50

Troubleshooting SiBE04-624_B110 Service Diagnosis2.24 Compressor LockError CodeE6Method of Error DetectionA compressor lock is detected by checking th

SiBE04-624_B TroubleshootingService Diagnosis 1112.25 DC Fan LockError CodeE7Method of Error DetectionAn error is determined with the high-voltage fan

Troubleshooting SiBE04-624_B112 Service Diagnosis2.26 Input Overcurrent DetectionError CodeE8Method of Error DetectionAn input overcurrent is detected

SiBE04-624_B TroubleshootingService Diagnosis 1132.27 Four Way Valve AbnormalityError CodeEAMethod of Error DetectionThe room temperature thermistor a

Troubleshooting SiBE04-624_B114 Service DiagnosisTroubleshootingCheck No.01Refer to P.134Check No.13Refer to P.137Check No.14Refer to P.138NGOKNOOKNGO

SiBE04-624_B TroubleshootingService Diagnosis 1152.28 Discharge Pipe Temperature ControlError CodeF3Method of Error DetectionAn error is determined wi

Troubleshooting SiBE04-624_B116 Service Diagnosis2.29 High Pressure Control in CoolingError CodeF6Method of Error DetectionHigh-pressure control (oper

SiBE04-624_B TroubleshootingService Diagnosis 1172.30 Compressor System Sensor AbnormalityError CodeH0Method of Error DetectionFault condition is iden

Troubleshooting SiBE04-624_B118 Service Diagnosis2.31 Damper AbnormalityError CodeH1Method of Error DetectionDetected by the limit switch (LS) in the

SiBE04-624_B TroubleshootingService Diagnosis 1192.32 Position Sensor AbnormalityError CodeH6Method of Error DetectionA compressor start-up failure is

SiBE04-624_B FunctionsList of Functions 3Category FunctionsFTXR28/42/50EV1B9RXR28/42/50EV1B8Category FunctionsFTXR28/42/50EV1B9RXR28/42/50EV1B8Basic F

Troubleshooting SiBE04-624_B120 Service DiagnosisTroubleshootingCheck No.15Refer to P.138Check No.18Refer to P.141Check No.20Refer to P.142CautionBe s

SiBE04-624_B TroubleshootingService Diagnosis 1212.33 DC Voltage / Current Sensor AbnormalityError CodeH8Method of Error DetectionDC voltage or DC cur

Troubleshooting SiBE04-624_B122 Service Diagnosis2.34 Thermistor or Related Abnormality (Outdoor Unit)Error CodeH9, J3, J6, P4Method of Error Detectio

SiBE04-624_B TroubleshootingService Diagnosis 123TroubleshootingCheck No.01Refer to P.134H9: Outdoor temperature thermistorJ3: Discharge pipe thermist

Troubleshooting SiBE04-624_B124 Service Diagnosis2.35 Electrical Box Temperature RiseError CodeL3Method of Error DetectionAn electrical box temperatur

SiBE04-624_B TroubleshootingService Diagnosis 125TroubleshootingCheck No.01Refer to P.134Check No.17Refer to P.141Check No.19Refer to P.142A (°C) B (°

Troubleshooting SiBE04-624_B126 Service Diagnosis2.36 Radiation Fin Temperature RiseError CodeL4Method of Error DetectionA radiation fin temperature r

SiBE04-624_B TroubleshootingService Diagnosis 127TroubleshootingCheck No.01Refer to P.134Check No.17Refer to P.141Check No.19Refer to P.142Note: Refer

Troubleshooting SiBE04-624_B128 Service Diagnosis2.37 Output Overcurrent DetectionError CodeL5Method of Error DetectionAn output overcurrent is detect

SiBE04-624_B TroubleshootingService Diagnosis 129TroubleshootingCheck No.15Refer to P.138Check No.17Refer to P.141Check No.18Refer to P.141Check No.22

SiBE04-624_B4 SpecificationsPart 2Specifications1. Specifications ...

Troubleshooting SiBE04-624_B130 Service Diagnosis2.38 Fan Motor System Abnormality / Fan LockError CodeP9Method of Error DetectionDuring humidifying f

SiBE04-624_B TroubleshootingService Diagnosis 1312.39 Heater Wire AbnormalityError CodePAMethod of Error DetectionAn error is identified when the outl

Troubleshooting SiBE04-624_B132 Service Diagnosis2.40 Humidifying Thermistor Abnormality / Humidifying Heater Temperature AbnormalityError CodePHMetho

SiBE04-624_B TroubleshootingService Diagnosis 133TroubleshootingCheck the connector for proper connection.OK?OK?Cool the heater down.Check No.19Check

Check SiBE04-624_B134 Service Diagnosis3. Check3.1 Thermistor Resistance CheckCheck No.01 Disconnect the connectors of the thermistors from the PCB, a

SiBE04-624_B CheckService Diagnosis 1353.2 Fan Motor Connector Output CheckCheck No.02 1. Check the connection of connector.2. Check the motor power s

Check SiBE04-624_B136 Service Diagnosis3.5 Electronic Expansion Valve CheckCheck No.12 Conduct the followings to check the electronic expansion valve

SiBE04-624_B CheckService Diagnosis 1373.6 Four Way Valve Performance CheckCheck No.13Start heating operation.(R13938)NO∗ Four way valve coilCooling /

Check SiBE04-624_B138 Service Diagnosis3.7 Inverter Units Refrigerant System CheckCheck No.143.8 Inverter Analyzer CheckCheck No.15CharacteristicsInv

SiBE04-624_B CheckService Diagnosis 139Reference:If the terminals of the compressor are not FASTON terminals (difficult to remove the wires on the ter

SiBE04-624_B SpecificationsSpecifications 51. Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table bel

Check SiBE04-624_B140 Service Diagnosis3.9 Rotating Pulse Check on Outdoor Unit PCBCheck No.16For outdoor fan motor or humidifier fan motorOutdoor fa

SiBE04-624_B CheckService Diagnosis 1413.10 Installation Condition CheckCheck No.173.11 Discharge Pressure CheckCheck No.18Installation condition chec

Check SiBE04-624_B142 Service Diagnosis3.12 Outdoor Fan System CheckCheck No.19 DC motor3.13 Main Circuit Short CheckCheck No.20Note: Check to make su

SiBE04-624_B CheckService Diagnosis 1433.14 Power Module CheckCheck No.22Note: Check to make sure that the voltage between (+) and (–) of the power mo

Check SiBE04-624_B144 Service Diagnosis3.15 Dehumidifying Solenoid Valve CheckCheck No.23The voltage is 0 V?(R18378)The voltage is around 10 ~ 15 V?St

SiBE04-624_BTrial Operation and Field Settings 145Part 7Trial Operation andField Settings1. Pump Down Operation...

Pump Down Operation SiBE04-624_B146 Trial Operation and Field Settings1. Pump Down OperationOutline In order to protect the environment, be sure to co

SiBE04-624_B Forced Cooling OperationTrial Operation and Field Settings 1472. Forced Cooling OperationIndoor UnitItem Forced CoolingConditions The for

Trial Operation SiBE04-624_B148 Trial Operation and Field Settings3. Trial OperationOutline 1. Measure the supply voltage and make sure that it falls

SiBE04-624_B Field SettingsTrial Operation and Field Settings 1494. Field Settings4.1 Humidifying Hose Length SettingOutline Set the humidifying hose

Specifications SiBE04-624_B6 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelIndoor Un

Field Settings SiBE04-624_B150 Trial Operation and Field Settings4.2 When 2 Units are Installed in 1 RoomOutline When 2 indoor units are installed in

SiBE04-624_B Silicon Grease on Power Transistor / Diode BridgeTrial Operation and Field Settings 1515. Silicon Grease on Power Transistor / Diode Brid

SiBE04-624_B152 AppendixPart 8Appendix1. Piping Diagrams...1531.1 Indoo

SiBE04-624_B Piping DiagramsAppendix 1531. Piping Diagrams1.1 Indoor UnitFTXR28/42/50EV1B91.2 Outdoor UnitRXR28/42/50EV1B9, RXR28/42/50EV1B8MFIELD PIP

Wiring Diagrams SiBE04-624_B154 Appendix2. Wiring Diagrams2.1 Indoor UnitFTXR28/42/50EV1B92.2 Outdoor UnitRXR28/42/50EV1B9, RXR28/42/50EV1B8A1P~A5PCAU

SiBE04-624_B Removal Procedure (Booklet No.)Appendix 1553. Removal Procedure (Booklet No.)Refer to the following booklets for removal procedure.∗FTXR2

Revision HistoryMonth / Year Version Revised contents08 / 2006 SiBE04-624 First edition01 / 2007 SiBE04-624_A Model change: FTXR28/42/50EV1B9, RXR28/4

Head Office:Umeda Center Bldg., 2-4-12, Nakazaki-Nishi,Kita-ku, Osaka, 530-8323 JapanTokyo Office:JR Shinagawa East Bldg., 2-18-1, Konan,Minato-ku, To

SiBE04-624_B SpecificationsSpecifications 750 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelIndoor Un

Specifications SiBE04-624_B8 Specifications50 Hz, 220 - 230 - 240 VNote: The data are based on the conditions shown in the table below.ModelIndoor Un

SiBE04-624_BPrinted Circuit Board Connector Wiring Diagram 9Part 3Printed Circuit BoardConnector Wiring Diagram1. Indoor Unit...

SiBE04-624_Bi Table of ContentsInverter PairWall Mounted TypeE-SerieszHeat PumpIndoor UnitFTXR28EV1B9FTXR42EV1B9FTXR50EV1B9Outdoor UnitRXR28EV1B9 RXR2

Indoor Unit SiBE04-624_B10 Printed Circuit Board Connector Wiring Diagram1. Indoor UnitA1P: Control PCBCaution Replace the PCB if you accidentally cut

SiBE04-624_B Indoor UnitPrinted Circuit Board Connector Wiring Diagram 11A2P: Display PCBCaution Replace the PCB if you accidentally cut the jumpers o

Indoor Unit SiBE04-624_B12 Printed Circuit Board Connector Wiring DiagramA4P: Humidity Sensor PCBA5P: Streamer Unit PCB1) CN1 Connector for control PC

SiBE04-624_B Outdoor UnitPrinted Circuit Board Connector Wiring Diagram 132. Outdoor UnitPCB DetailCaution Replace the PCB if you accidentally cut the

SiBE04-624_B14 Function and ControlPart 4Function and Control1. Main Functions...

SiBE04-624_B Main FunctionsFunction and Control 151. Main Functions1.1 Temperature ControlDefinitions of TemperaturesThe definitions of temperatures a

Main Functions SiBE04-624_B16 Function and ControlDrawing of InverterThe following drawing shows a schematic view of the inverter principle:Inverter F

SiBE04-624_B Main FunctionsFunction and Control 171.3 Airflow Direction Control1.3.1 Power-Airflow Dual FlapsThe large flaps send a large volume of ai

Main Functions SiBE04-624_B18 Function and Control1.3.5 COMFORT AIRFLOW OperationEffective mode for COMFORT AIRFLOW operationAUTOHEATINGHUMID HEAT

SiBE04-624_B Main FunctionsFunction and Control 191.3.6 COOLING BREEZE OperationOperationEffective mode for COOLING BREEZE operation•COOLING• “SARARA

SiBE04-624_BTable of Contents ii1. Introduction ...v1.1 Safe

Main Functions SiBE04-624_B20 Function and Control1.4 Fan Speed Control for Indoor UnitOutline Phase control and fan speed control contains 9 steps: L

SiBE04-624_B Main FunctionsFunction and Control 211.5 Thermostat ControlOutline Thermostat control is based on the difference between the room thermis

Main Functions SiBE04-624_B22 Function and Control1.6 “URURU” HUMIDIFYING / HUMID HEATING OperationOperationFeaturesHumidifying methodThis method int

SiBE04-624_B Main FunctionsFunction and Control 23Powerful humidifying abilityThe humidifying capacity is 450 ml/h (50 class) and equivalent to that

Main Functions SiBE04-624_B24 Function and ControlHumidity Fluctuation by Temperature SettingsDuring HUMID HEATING operation, as room temperature rise

SiBE04-624_B Main FunctionsFunction and Control 25Time chart for humidifying operation control Approximately 1 minute after heating operation starts,

Main Functions SiBE04-624_B26 Function and ControlHumidification performance by outdoor temperatureThe humidifying of this system is different from th

SiBE04-624_B Main FunctionsFunction and Control 27Reachable humidity by outdoor conditionHumidifying capacity drops when the outdoor temperature and t

Main Functions SiBE04-624_B28 Function and ControlPerformance correction by hose lengthThe maximum piping length is set to 10 m, but the humidifying c

SiBE04-624_B Main FunctionsFunction and Control 29Room humidity (humidity of the discharged air) by outdoor temperature (16 m2, hose length: 4 m, ven

SiBE04-624_Biii Table of Contents2.7 Draft Prevention Control (Hot-Start Function) ...612.8 Dew Prevention Contro

Main Functions SiBE04-624_B30 Function and Control1.7 “SARARA” DRYING / DRY COOLING OperationOperationFeatures of “SARARA” DRYINGReheating dehumidify

SiBE04-624_B Main FunctionsFunction and Control 31Differences between “SARARA” DRYING and DRY COOLING operation“SARARA” DRYING DRY COOLINGMethod Pres

Main Functions SiBE04-624_B32 Function and Control1.8 AUTO OperationOperationOutline Automatic Cooling / Heating FunctionWhen the AUTO operation is se

SiBE04-624_B Main FunctionsFunction and Control 331.9 MOISTURIZING OperationOperationEffective mode for MOISTURE COOLING operation•COOLING• DRY COOLI

Main Functions SiBE04-624_B34 Function and Control1.10 FLASH STREAMER AIR PURIFYING OperationOperation<Note> Temperature, humidity and airflow r

SiBE04-624_B Main FunctionsFunction and Control 35Removing FormaldehydeDeodorizing Performance of FLASH STREAMER and Titanium Apatite PhotocatalystU

Main Functions SiBE04-624_B36 Function and Control1.11 FRESH AIR SUPPLY VENTILATION OperationOperation<Note> Temperature, humidity and airflow r

SiBE04-624_B Main FunctionsFunction and Control 37Ventilation SystemVentilation is mainly divided into two types. The convenient system is supply ven

Main Functions SiBE04-624_B38 Function and Control1.13 TIMER Operation1.13.1 24-hour ON/OFF TIMEROperationFeaturesTime can be set in the unit of 10 m

SiBE04-624_B Main FunctionsFunction and Control 391.14 NIGHT SET ModeOutline When the OFF timer is set, the NIGHT SET Mode is automatically activated.

SiBE04-624_BTable of Contents iv2.36 Radiation Fin Temperature Rise ...1262.37 Output Overcurre

Main Functions SiBE04-624_B40 Function and Control1.15 COMFORT SLEEP OperationOperationEffective mode for COMFORT SLEEP operation•COOLING• DRY COOLIN

SiBE04-624_B Main FunctionsFunction and Control 41Human sleepSleep cycle and change in body temperatureTime chart of V-shape comfort sleep controlRe

Main Functions SiBE04-624_B42 Function and Control1.16 POWERFUL OperationOperationEffective mode for POWERFUL COOLING operation•COOLING• DRY COOLING•

SiBE04-624_B Main FunctionsFunction and Control 431.17 MOLD PROOF OperationThis is an integrated naming of functions of inside drying and moisture exh

Main Functions SiBE04-624_B44 Function and ControlSwitching air supply / exhaustingThis function was realized by developing damper inside the humidif

SiBE04-624_B Main FunctionsFunction and Control 451.18 MOLD SHOCK OUT OperationThe room is kept clean by removing excessive moisture by rapidly loweri

Main Functions SiBE04-624_B46 Function and ControlComparison of COOLING operation and MOLD SHOCK OUT operationHumidityNormal COOLING operationGrowth

SiBE04-624_B Main FunctionsFunction and Control 47ReferenceEffect0510152025303540455055606570758085909:00 9:20 9:40 10:00 10:20 10:40 11:00 11:20 11:

Main Functions SiBE04-624_B48 Function and Control1.19 INFORMATION DISPLAYOperationFeaturesAfter pressing the [INFO] button, point the remote control

SiBE04-624_B Main FunctionsFunction and Control 491.20 Multi-colored Indicator LampFeatures The current operation mode is displayed in color of the la

Introduction SiBE04-624_Bv1. Introduction1.1 Safety CautionsCautions and WarningsBe sure to read the following safety cautions before conducting repa

Main Functions SiBE04-624_B50 Function and Control1.23 Clock SettingARC447 Series The clock can be set by taking the following steps:1. Press the [CLO

SiBE04-624_B Main FunctionsFunction and Control 511.25 Other Functions1.25.1 Hot-Start FunctionIn order to prevent the cold air blast that normally co

Main Functions SiBE04-624_B52 Function and Control1.26 Table for Special ModesA. Forced cooling operation mode:The buzzer beeps, and the timer and mul

SiBE04-624_B Main FunctionsFunction and Control 531. Trial operation mode:You can select a mode for trial operation with the remote controller.The o

Control Specification SiBE04-624_B54 Function and Control2. Control Specification2.1 Frequency ControlOutline Frequency is determined according to the

SiBE04-624_B Control SpecificationFunction and Control 55Indoor Frequency Command (∆D signal)The difference between the room thermistor temperature an

Control Specification SiBE04-624_B56 Function and Control2.2 Controls at Mode Changing / Start-up2.2.1 Preheating OperationOutline The inverter operat

SiBE04-624_B Control SpecificationFunction and Control 572.2.4 3-minute StandbyTurning on the compressor is prohibited for 3 minutes after turning it

Control Specification SiBE04-624_B58 Function and Control2.3 Discharge Pipe Temperature ControlOutline The discharge pipe temperature is used as the i

SiBE04-624_B Control SpecificationFunction and Control 592.4 Input Current ControlOutline The microcomputer calculates the input current while the com

SiBE04-624_B IntroductionviBe sure to wear a safety helmet, gloves, and a safety belt when working at a high place (more than 2 m). Insufficient safet

Control Specification SiBE04-624_B60 Function and Control2.5 Freeze-up Protection ControlOutline During cooling operation, the signal sent from the in

SiBE04-624_B Control SpecificationFunction and Control 612.7 Draft Prevention Control (Hot-Start Function)Outline Draft prevention control prevents co

Control Specification SiBE04-624_B62 Function and Control2.9 Outdoor Fan Control1. Fan ON control to cool down the electrical boxThe outdoor fan is tu

SiBE04-624_B Control SpecificationFunction and Control 632.11 Defrost ControlOutline Defrosting is carried out by the cooling cycle (reverse cycle). T

Control Specification SiBE04-624_B64 Function and Control2.12 Electronic Expansion Valve ControlOutline The following items are included in the electr

SiBE04-624_B Control SpecificationFunction and Control 652.12.1 Fully Closing with Power ONThe electronic expansion valve is initialized when turning

Control Specification SiBE04-624_B66 Function and Control2.12.7 Control for Disconnection of the Discharge Pipe ThermistorOutline The disconnection of

SiBE04-624_BRemote Controller 67Part 5Remote Controller1. FTXR28/42/50EV1B9...

FTXR28/42/50EV1B9 SiBE04-624_B68 Remote Controller1. FTXR28/42/50EV1B9Reference Refer to the following pages for detail.Note: Refer to the operation

SiBE04-624_B FTXR28/42/50EV1B9Remote Controller 69Reference Refer to the following pages for detail.Note: Refer to the operation manual of applicable

Introduction SiBE04-624_Bvii1.1.2 Cautions Regarding Safety of UsersWarningBe sure to use parts listed in the service parts list of the applicable mod

FTXR28/42/50EV1B9 SiBE04-624_B70 Remote ControllerTemperature and Humidity SettingsHeating “URURU” HUMIDIFYING OperationCooling “SARARA” DRYING Oper

SiBE04-624_BService Diagnosis 71Part 6 Service Diagnosis1. Convenient Service Check Function...731.1

SiBE04-624_B72 Service Diagnosis2.40 Humidifying Thermistor Abnormality / Humidifying Heater Temperature Abnormality ...

SiBE04-624_B Convenient Service Check FunctionService Diagnosis 731. Convenient Service Check Function1.1 Indoor UnitMulti-colored Indicator LampThe m

Troubleshooting SiBE04-624_B74 Service Diagnosis2. Troubleshooting2.1 Error Codes and DescriptionCode Unit Description Reference pageBasic Failure Dia

SiBE04-624_B TroubleshootingService Diagnosis 752.2 Air conditioner does not run.Error CodeError Decision ConditionsSupposed CausesPower supply is OF

Troubleshooting SiBE04-624_B76 Service DiagnosisTroubleshootingYESYESYESYESIs the power supply plug inserted into the outlet or the breaker for the po

SiBE04-624_B TroubleshootingService Diagnosis 77Replace the outdoor unit PCB.Go to troubleshooting.(R18115)YESNONOYESOperation lamp blinks?Is an error

Troubleshooting SiBE04-624_B78 Service Diagnosis2.3 Air conditioner runs but does not cool (heat) the room.Error CodeError Decision ConditionsSupposed

SiBE04-624_B TroubleshootingService Diagnosis 79TroubleshootingCheck No.01Refer to P.134Warning: When the air conditioner does not cool or heat the ro

SiBE04-624_B IntroductionviiiCheck to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet securely.If

Troubleshooting SiBE04-624_B80 Service Diagnosis2.4 When operation starts, safety breaker works.Error CodeError Decision ConditionsSupposed CausesIns

SiBE04-624_B TroubleshootingService Diagnosis 81TroubleshootingCheck No.20Refer to P.142Is the capacity of safety breaker as specified?(R18117)Caution

Troubleshooting SiBE04-624_B82 Service Diagnosis2.5 Air conditioner makes big noise and vibration.Error CodeError Decision ConditionsSupposed CausesR

SiBE04-624_B TroubleshootingService Diagnosis 832.6 Air is not humidified enough.Error CodeError Decision ConditionsSupposed CausesHose length is not

Troubleshooting SiBE04-624_B84 Service DiagnosisTroubleshootingCautionDoes the set hose length match with the field hose length?Is the air supply filt

SiBE04-624_B TroubleshootingService Diagnosis 852.7 Lights-out of Microcomputer Status LampError Code No displayMethod of Error DetectionWhen a microc

Troubleshooting SiBE04-624_B86 Service Diagnosis2.8 Indoor Unit PCB AbnormalityError CodeA1Method of Error DetectionThe system checks if the circuit w

SiBE04-624_B TroubleshootingService Diagnosis 872.9 Freeze-up Protection Control or Heating Peak-cut ControlError CodeA5Method of Error DetectionFree

Troubleshooting SiBE04-624_B88 Service DiagnosisTroubleshootingCheck No.01Refer to P.134NONONOCheck No. 01Check the indoor heat exchanger thermistor.Y

SiBE04-624_B TroubleshootingService Diagnosis 892.10 Fan Motor (DC Motor) or Related AbnormalityError CodeA6Method of Error DetectionThe rotation spee