Sinclair ASH-18BIF Service Manual
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Sinclair ASH-18BIF Service Manual

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SERVICE MANUAL
FOCUS SERIES
ASH-18BIF, ASH-24BIF

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Summary of Contents for Sinclair ASH-18BIF

  • Page 1 SERVICE MANUAL FOCUS SERIES ASH-18BIF, ASH-24BIF...
  • Page 2 “Original instructions”   IMPORTANT NOTE: Read this manual ca r efully befo r e installing or operating your new air conditioning unit. Make sure to save this manual for future reference.

  • Page 3: Table Of Contents

    Service Manual Table of Contents Part Ⅰ : Technical Information ...............1 2. Specifications ......................2 2.1 Specification Sheet ......................2 2.2 Operation Characteristic Curve ..................10 2.3 Capacity Variation Ratio According to Temperature ............10 2.4 Cooling and Heating Data Sheet in Rated Frequency ...........12 2.5 Noise Curve ........................12 3.
  • Page 4 Service Manual 9. Maintenance ......................68 9.1 Malfunction Display of Indoor Unit ..................68 9.2 Procedure of Troubleshooting ..................70 9.3 Troubleshooting for Normal Malfunction .................87 10. Removal Procedure ..................97 ................97 10.1 Removal Procedure of Indoor Unit ................102 10.2 Removal Procedure of Outdoor Unit Appendix: ........................

  • Page 5: Part Ⅰ : Technical Information

    Service Manual Part Ⅰ : Technical Information Indoor Unit ASH-18BIF/I ASH-24BIF/I Outdoor Unit ASH-18BIF/O ASH-24BIF/O Remote Controller YAN1F1 Technical Information...

  • Page 6: Specifications

    Service Manual 2. Specifications 2.1 Specification Sheet Parameter Unit Value Model ASH-18BIF Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) 5130(1200~6200) Heating Capacity(Min~Max) 5280(1200~6600) Cooling Power Input(Min~Max) 1580(350~2100) Heating Power Input(Min~Max) 1420(350~1600) Cooling Current Input...
  • Page 7 Service Manual Outdoor Unit Model ASH-18BIF/O Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO.,LTD Compressor Model QXF-B141ZF030A Compressor Oil 68EP Compressor Type Rotary Compressor LRA. Compressor RLA Compressor Power Input 1410 Compressor Overload Protector 1NT11L-6233/KSD115℃ /HPC 115/95 Throttling Method Capillary Set Temperature Range ºC...
  • Page 8 Service Manual Parameter Unit Value Model ASH-24BIF Rated Voltage 220-240 Power Rated Frequency Supply Phases Power Supply Mode Outdoor Cooling Capacity(Min~Max) 6450(2000~8200) Heating Capacity(Min~Max) 6450(2000~8500) Cooling Power Input(Min~Max) 1950(400~3000) Heating Power Input(Min~Max) 1735(450~3100) Cooling Current Input Heating Current Input Rated Input 3800 Rated Current 13.48...
  • Page 9 Service Manual Outdoor Unit Model ASH-24BIF/O Compressor Manufacturer ZHUHAI LANDA COMPRESSOR CO,LTD. Compressor Model QXFS-D23zX090A Compressor Oil FV50S Compressor Type Rotary Compressor LRA. Compressor RLA 11.50 Compressor Power Input 2400 Compressor Overload Protector 1NT11L-6233 or HPC115/95/ or KSD115ºC Throttling Method Electron expansion valve+Capillary Set Temperature Range ºC...

  • Page 10: Operation Characteristic Curve

    Service Manual 2.2 Operation Characteristic Curve Cooling Heating 220V Conditions 220V Indoor: DB27°C/WB19°C Outdoor: DB35°C/WB24°C Indoor air flow: High Pipe length: 5m 230V 230V 240V Conditions Indoor: DB20°C/WB15°C 240V Outdoor: DB7°C/WB6°C Indoor air flow: High Pipe length: 5m 10 20 30 40 50 60 70 80 90 100 Compressor speed (rps) Compressor speed (rps) 2.3 Capacity Variation Ratio According to Temperature...
  • Page 11 Service Manual Heating operation ambient temperature range is -22°C~24°C Cooling Heating Cooling Heating Conditions Indoor:DB20°C/WB15°C Indoor air flow:Super High Pipe length: 5m Conditions Conditions Outdoor temp.( Indoor:DB27°C/WB19°C Indoor:DB20°C/WB15°C Indoor air flow:Super High Indoor air flow:Super High Pipe length: 5m Pipe length: 5m –15 –10 –5...

  • Page 12: Cooling And Heating Data Sheet In Rated Frequency

    Service Manual 2.4 Cooling and Heating Data Sheet in Rated Frequency Cooling: Rated cooling Pressure of gas pipe Inlet and outlet pipe Compressor condition(°C) connecting indoor and temperature of heat Fan speed of Fan speed of Model frequency (DB/WB) outdoor unit exchanger indoor unit outdoor unit...

  • Page 13: Outline Dimension Diagram

    Service Manual 3. Outline Dimension Diagram 3.1 Indoor Unit Φ55 Φ55 Φ70 Φ70 Unit:mm Model 1078 Technical Information...

  • Page 14: Outdoor Unit

    Service Manual 3.2 Outdoor Unit ASH-18BIF/O Unit:mm ASH-24BIF/O Unit:mm Technical Information...

  • Page 15: Refrigerant System Diagram

    Service Manual 4. Refrigerant System Diagram Outdoor unit Indoor unit Gas pipe side Valve 4-Way valve Di s charge Heat Suction Accumlator exchanger Compressor (evaporator) Heat exchanger Liquid pipe (condenser) side Valve Strainer Electric Capillary Strainer expand valve COOLING HEATING Connection pipe specification: Liquid pipe:1/4"...

  • Page 16: Electrical Part

    Jumper cap Yellow Brown COMP Compressor Blue Grounding wire YEGN Yellow/Green Black Violet Orange Note: Jumper cap is used to determine fan speed and the swing angle of horizontal lover for this model. ● Indoor Unit ASH-18BIF/I ASH-24BIF/I 600007000688 Technical Information...
  • Page 17 Service Manual ● Outdoor Unit ASH-18BIF/O ASH-24BIF/O 6361000021801 These circuit diagrams are subject to change without notice, please refer to the one supplied with the unit. Technical Information...

  • Page 18: Pcb Printed Diagram

    Service Manual 5.2 PCB Printed Diagram Indoor Unit Name Neutral wire interface of cold plasma(only for the mode with this function) Neutral wire interface of power supply Interface of indoor fan Interface of health function live wire Interface of up&down swing motor Interface of PG feedback WIFI...

  • Page 19: Service Manual

    Service Manual Outdoor Unit ● Top view Name Compressor three phase input interface Terminal of system high pressure protection Compressor overload protection terminal 4 Interface of temperature sensor Terminal of electronic expansion valve Terminal for low pressure protection Interface of fan 4-way valve terminal 2-way valve terminal Terminal of compressor electric heater...

  • Page 20: Function And Control

    Service Manual 6. Function and Control 6.1 Remote Controller Introduction ON/OFF button MODE button WIFI FAN button SWING button TURBO button ▲/ button SLEEP button TEMP button I FEEL button LIGHT button CLOCK button TIMER ON / TIMER OFF button Introduction for icons on display screen Set fan speed I feel...
  • Page 21 Service Manual 1. ON/OFF button Press this button can turn on or turn off the air conditioner. After turning on the air conditioner, operation indicator " "on indoor units display is ON (green indicator. The colour is different for different models), and indoor unit will give out a sound. 2.
  • Page 22 Service Manual 7. SLEEP button Under COOL, HEAT or DRY mode, press this button to start up sleep function. " " icon is displayed on remote controller. Press this button again to cancel sleep function and " " icon will disappear. 8.

  • Page 23: Function Introduction For Combination Buttons

    Service Manual Function introduction for combination buttons 1. Energy-saving function Under cooling mode, press "TEMP" and " CLOCK" buttons simultaneously to start up or turn off energy-saving function. When energy-saving function is started up, "SE" will be shown on remote controller, and air conditioner will adjust the set temperature automatically according to ex-factory setting to reach to the best energy-saving effect.

  • Page 24: Brief Description Of Modes And Functions

    Service Manual 6.2 Brief Description of Modes and Functions 1.Basic function of system (1)Cooling mode (1) Under this mode, fan and swing operates at setting status. Temperature setting range is 16~30 (2) During malfunction of outdoor unit or the unit is stopped because of protection, indoor unit keeps original operation status. (2)Drying mode (1) Under this mode, fan operates at low speed and swing operates at setting status.
  • Page 25 Service Manual (8)I feel control mode After controller received I feel control signal and ambient temperature sent by remote controller, controller will work according to the ambient temperature sent by remote controller. (9)Compulsory defrosting function (1) Start up compulsory defrosting function Under ON status, set heating mode with remote controller and adjust the temperature to 16 C.

  • Page 26: Outdoor Units

    Service Manual Outdoor Units 1. Input Parameter Compensation and Calibration (1) Check the ambient temperature compensation function Indoor ambient temperature compensation function. a. In cooling mode, the indoor ambient temperature participating in computing control = (T – ⊿ T indoor ambient temperature cooling indoor ambient temperature compensation b.
  • Page 27 Service Manual 3. Special Functions Defrosting Control ① Conditions for starting defrosting After the time for defrosting is judged to be satisfied, if the temperature for defrosting is satisfied after detections for continuous 3minutes, the defrosting operation will start. ② Conditions of finishing defrosting The defrosting operation can exit when any of the conditions below is satisfied: ③...
  • Page 28 Service Manual 1. Starting estimation: After the compressor stopped working for 180s, if T >[T (the temperature of hysteresis is 2 )], the inner pipe frozen-preventing frequency-limited temperature machine is only allowed to start for operating, otherwise it should not be started, and should be stopped to treat according to the frozen- preventing protection: Clear the trouble under the mode of power turn-off / heating, and the protection times are not counted.
  • Page 29 Service Manual 1. Frequency limited If [T ]≤T <[T ] , you should limit the frequency raising of heating overload frequency-limited temperature inner pipe heating overload frequency reducing temperature at normal speed compressor. 2. Reducing frequency at normal speed and stopping machine: If T[ ]≤T <[T...
  • Page 30 Service Manual (6)Voltage sag protection After start the compressor, if the time of DC link Voltage sag [U ] is measured to be less than t Voltage sag protection time , Sagging protection voltage the machine should be stop at once, hand on the voltage sag trouble, reboot automatically after 30 minutes. (7)Communication fault When you have not received any correct signal from the inner machine in three minutes, the machine will stop for communication fault.
  • Page 31 Service Manual (12) Starting-up Failure Protection for Compressor Stop the compressor after its starting-up fails, restart it after 20s if the fault doesnt shows, and if they are all failing for the successive start 3 times, it shall be reported as Starting-up Failure, and then restart up it after 3 min. When it still not be able to operate through carry out the above process for 5 times, it is available if press ON/OFF.
  • Page 32 Service Manual 6. Electric Heating Function of Chassis (1) When T ≤0ºC, the electric heating of chassis will operate; outdoor amb. (2) When T >2ºC, the electric heating of chassis will stop operation; outdoor amb. (3)When 0ºC<T ≤2ºC, the electric heating of chassis will keep original status. outdoor amb.

  • Page 33: Operation Of Smart Control (Smart Phone, Tablet

    Scan the following QR code with your smart phone and download Wifi Smart. Install the APP according to its guidance. When successfully installed, your smart phone homepage will show this icon User of IOS system can search for the SINCLAIR Smart in Apple store to download the Apple version APP. Configuration NOTE: Select either the original configuration or AP configuration according to the APP functions.
  • Page 34 Service Manual Select "Add device" and enter the page of "Add device". Tap "Manual configuration" and enter the page "Manual configuration". Step 2: Select the correct network name and enter the password. Select the server (The server setting here must keep the same as the server setting in "Settings"...
  • Page 35 Service Manual Step 4: If configuration is successful, a window will pop up and read "Configuration succeeded". Then configuration is completed. NOTE: After configuration is completed, the air conditioner hot spot connected to your phone will disAPPear. You should reconnect your phone to the home Wifi router to realize long-distance control.
  • Page 36 Service Manual (4) If password is forgotten, you can reset the password with your email address. Tap "Forgot password" and enter the page "Forgot password". Tap "Get verification code" to get an email verification code. Enter a new password and tap "OK" to log in. 2.Personal settings Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily.
  • Page 37 Service Manual (2) Set preset name Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit". Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the repeating days.
  • Page 38 Service Manual to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed adjustment. and go around the circle to adjust fan speed. Step 2: Advanced settings to enter advanced settings. You may select "Air", "Dry", "Health", "Light", "Sleep" or "Energy saving". (2) Advanced control functions: Set scene;...
  • Page 39 Service Manual Tap "Add scene" and edit the scene name, for example, "Back home". Add execution devices. to add commands. On the page "Select execution device", select the air conditioner named "babyroom". Then select "ON" or "OFF". Continue to select the next execution device as instructed above. Tap to set the interval.
  • Page 40 Service Manual (3) Preset includes single-device preset and multi-device preset Single-device preset: This can preset a certain device to be On/Off at a specific time. On the homepage "Device", take air conditioner "babyroom" as an example. Tap at the bottom of the page "babyroom". Then you will enter the page "Preset edit".
  • Page 41 Service Manual (4) Link(This function is APPlicable to some models) Select a master device. When the environment satisfies the parameters as set in the master device, slave devices will execute commands to realize devices linkage. Step 1: Set the parameters of master device (Select master device, select environment parameters, select master device status). at the top right corner of the homepage "Device".
  • Page 42 Service Manual Tap the days below "Repeat" to select the repeating days. Then tap "Save". Step 3: Select "Execute command" Tap "Execute command" and enter the page "Select device". Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage. Tap "Save"...
  • Page 43 Service Manual (5) Infrared control (only APPlicable to smart phones with infrared emitter). Function: Smart phone can be used as a remote controller. at the top right corner of the homepage "Device". Select "Infrared" and enter the page "Remote controller". Tap slide up to enter the page of advanced functions.
  • Page 44 Service Manual Step 2: Another smart phone to be imported. Tap the model name and wait for the download. (2) Backup: To keep backup of the quick configuration information and unit’s information, including backup to cloud and backup list on the cloud.
  • Page 45 Service Manual (3) Settings User can set vibration, message alerts, server, updates, etc. The server setting here must be the same as the server setting in "Configuration" mentioned before. Otherwise, remote control will be invalid. (4) Feedback User can feedback suggestions to back-stage management for maintenance and development. Tap "Feedback".
  • Page 46 Service Manual 6.4 Operation of Smart Control (Smart Phone, Tablet PC) Operation Instructions Download and install APP Scan the following QR code with your smart phone and download Wifi Smart. Install the APP according to its guidance. When successfully installed, your smart phone homepage will show this icon User of IOS system can search for the Wifi Smart in Apple store to download the Apple version APP.
  • Page 47 Service Manual 2.Configuration method for Android phones 4 steps of configuration Step 1: Enter homepage "Device", and then tap at the top right corner. Select "Add device" and enter the page "Add device". Tap "Manual configuration" and enter the page "Manual configuration". Sinc AC Sinc AC ASinc AC...
  • Page 48 Service Manual NOTE: After configuration is completed, the air conditioner hot spot connected to your phone will disappear. You should reconnect your phone to the home WiFi router to realize long-distance control.The above configuration only needs onephone. Other types of phones shall install this APP, connect with the air conditioner hot spot or wireless router of WiFi air conditioner.
  • Page 49 Service Manual If the name of router or the password is wrong, Wifi Smart can’t connect to the wireless router. 2 mins later, please conduct the configuration operation again. Reset Wi-Fi adaptor by pointing you remote at the indoor unit and holding the mode and Turbo buttons on your remote control for 10 seconds and until you hear the beep.
  • Page 50 Service Manual 2.Personal settings Purpose: Set name (device name, preset name, etc.) and images (device image) in order to identify a user easily. (1) Set device name After quick configuration, a list of controllable smart devices will be generated. Default name for air conditioner is the last 8 numbers of the air condtioner mac address.
  • Page 51 Service Manual (2) Set preset name Step 1: Tap at the top right corner of the homepage "Device". Select "Add preset" and enter the page "Preset edit". Step 2: Choose the time. Tap "Name". As shown in the picture, its name is "baby room". For timer type, select "On". Then select the repeating days.
  • Page 52 Service Manual Tap "babyroom" and enter the page of air conditioner control. Tap to turn on the control switch. to increase or decrease temperature. Tap to change working mode. Tap to enter the page of fan speed adjustment. and go around the circle to adjust fan speed. Step 2: Advanced settings to enter advanced settings.
  • Page 53 Service Manual SINC air purifier Continue to select the next execution device as instructed above. Tap to set the interval. Tap "Save". Tap the scene picture displayed on homepage "Device" to send the command. Then the scene "Back home" will be in execution. You may view the execution condition of the scene. (3) Preset includes single-device preset and multi-device preset Single-device preset: This can preset a certain device to be On/Off at a specific time.
  • Page 54 Service Manual Tap "Name" to customize the preset name. Preset device can’t be selected and it will default to "babyroom". Select "On" for the timer type. Select repeating days to complete the preset. Multi-device preset: This can preset multiple devices to execute a command at a specific time. Please refer to the instructions as how to set preset time, name, timer type and repeating days for a single device.
  • Page 55 Service Manual Tap "Temperature" to enter the page "Select temperature parameter". Slide up or down to adjust temperature. Tap "Upper limit" or "Lower limit". Tap "Mode" and "On/Off" to select the status of master device. Then tap "Save". Step 2: Set time parameter for linkage. Tap "Time parameter" to enter the page "Set time". Slide rightwards to turn on the setting time.
  • Page 56 Service Manual Tap the name of device that you want to control. Tap "ON" or "OFF" and then tap "Save" to complete the linkage. Tap "Save" and then repeat the above steps to set linkage of several scenes. 4.Menu functions Menu functions (Share, Set, History, Feedback) (1) Share: To share quick configuration information and unit’s information, including local export and local import.
  • Page 57 Service Manual Step 2: Another smart phone to be imported. Tap the model name and wait for the download. Notice: This function requires that the two phones are of the same operating system. They are either Android phones or Apple phones,and are connecting to the same wireless router.
  • Page 58 Service Manual (3) Settings User can set vibration, message alerts, server, updates, etc. The server setting here must be the same as the server setting in "Configuration" mentioned before. Otherwise, remote control will be invalid. (4) Help Please refer to “Help” of APP for the instruction of the latest functions. Installation and Maintenance...

  • Page 59: Part Ⅱ : Installation And Maintenance

    Service Manual Part Ⅱ : Installation and Maintenance 7. Notes for Installation and Maintenance Safety Precautions: 10. If the power cord or connection wire is not long enough, please get the specialized power cord or connection wire Important! from the manufacture or distributor. Prohibit prolong the wire by yourself.
  • Page 60 Service Manual Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hexagon spanner 7. Electronic leakage detector 8.

  • Page 61: Installation

    Service Manual 8. Installation 8.1 Installation Dimension Diagram Space to the wall Space to the wall At least 15cm At least 15cm Drainage pipe Installation and Maintenance...
  • Page 62 Service Manual Installation procedures Start installation Preparation before installation Read the requirements select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install the support of outdoor unit Install wall-mounting (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Fix outdoor unit...

  • Page 63: Installation Parts-Checking

    Service Manual 8.4 Electric Connection Requirement 8.2 Installation Parts-checking 1. Safety Precaution Name Name (1) Must follow the electric safety regulations when installing Indoor unit Sealing gum the unit. Outdoor unit Wrapping tape (2) According to the local safety regulations, use qualified Support of outdoor power supply circuit and air switch.
  • Page 64 Service Manual in the holes. 4. Outlet Pipe (3) Fix the wall-mounting frame on the wall with tapping screws (1) The pipe can be led out in the direction of right, rear right, (ST4.2X25TA) and then check if the frame is firmly installed by left or rear left.(As show in Fig.3) pulling the frame.
  • Page 65 Service Manual (4) Put wiring cover back and then tighten the screw. (5) Close the panel. Drain hose Outlet pipe Note: (1) All wires of indoor unit and outdoor unit should be connected by a professional. Tape Drain hose (2) If the length of power connection wire is insufficient, please Outlet Fig.9 pipe...

  • Page 66: Installation Of Outdoor Unit

    Service Manual 4. Connect Indoor and Outdoor Pipes Outdoor Indoor (1) Remove the screw on the handle and valve cover of outdoor Fig.17 Wall pipe Sealing gum unit and then remove the handle and valve cover.(As show in Fig.21) Upper hook (2) Remove the screw cap of valve and aim the pipe joint at the bellmouth of pipe.(As show in Fig.22) Liquid pipe...

  • Page 67: Vacuum Pumping And Leak Detection

    Service Manual 2. Leakage Detection The drain hos (1) With leakage detector: can't raise upwards Check if there is leakage with leakage detector. (2) With soap water: Wall If leakage detector is not available, please use soap water for leakage detection. Apply soap water at the suspected position Fig.25 and keep the soap water for more than 3min.

  • Page 68: Maintenance

    Service Manual 9. Maintenance 9.1 Malfunction Display of Indoor Unit 1. Malfunction display requirement When there are several malfunctions, they will be displayed circularly. 2. Malfunction display method (1) Hardware malfunction: immediate display; refer to “malfunction display table”; (2) Operation state: immediate display; refer to “malfunction display table”; (3) Other malfunctions: it is displayed after the compressor stops for 200s;...
  • Page 69 Service Manual ●Discharging method (1) remove the inverter cover(Outdoor Unit) Inverter cover P.C.board (Soldered surface) (2)As shown below,connect the discharge resistance(approx.100Ω20W)or plug of the sold ering iron to voltage between + - terminals of the electrolytic capacitor on PC Board for 30s, and then peformedischarging. NOTE: A large-capacity electrolytic capacitor is used in the outdoor unit controller(inverter).Therefore,if the power supply is turned off,charge(charging voltage DC280V to 380V)remains and disc harging takes a lot of time..

  • Page 70: Procedure Of Troubleshooting

    Service Manual 9.2 Procedure of Troubleshooting Indoor unit (1) Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loosened or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 71 Service Manual (2) Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● SmoothlyIs the control terminal of PG motor connected tightly? ● SmoothlyIs the feedback interface of PG motor connected tightly? ● The fan motor cant operate? ●...
  • Page 72 Service Manual (3) Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ●...
  • Page 73 Service Manual (4) Malfunction of Zero-crossing Inspection Circuit Malfunction of the IDU Fan Motor U8 Main detection points: ● Instant energization afte de-energization while the capacitordischarges slowly? ● The zero-cross detectioncircuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Turn power off for 1minute,the turn...
  • Page 74 Service Manual (5) Communication malfunction (E6) Troubleshooting for E6 malfunction Disconnect power and check if the connection wire of indoor and outdoor units and the built-in wire of electric box are correctly connected. Connect the wire properly according Is malfunction Correct connection? to the wiring eliminated?
  • Page 75 Service Manual Outdoot Unit (1) Malfunction of Desynchronizing of Compressor (H7) Main check point: Whether the system pressure is too high? Whether the electronic expansion valve can work normally? Whether the radiation for the unit is in good condition? Malfunction diagnosis process: Desynchronizing malfunction occurs after de-energizing and turning on the unit...
  • Page 76 Service Manual Desynchronizing malfunction occurs during operation process Check whether Whether the outdoor fan can Replace fan capacitor the fan terminal is operate normally? connected well Improve the radiation circumstances for the Whether the radiation for the unit (such as clean heat unit is in good condition? Replace outdoor fan exchanger, improve...
  • Page 77 Service Manual (2) Malfunction of Temperature Sensor (F3/F4/F5) Main check point: Whether the temperature sensor is damaged? Whether the terminal of temperature sensor is loose or not connected? Whether the main board is damaged? Malfunction diagnosis process: Start the troubleshooting for temperature sensor Check the connection between temperature sensor and wiring...
  • Page 78 Service Manual (3) Malfunction of Overload Protection of Compressor (H3) and Discharge High-temperature Protection of Compressor (E4) Main check point: Whether the electronic expansion valve is connected well and whether its damaged? Whether the refrigerant is leaking? Whether the overload protector is damaged? Malfunction diagnosis process: Start Whether the overload protector is...
  • Page 79 Service Manual (4) Charging Malfunction of Capacitor (PU) Main check point: Whether input power is normal? Main board is damaged. Malfunction diagnosis process: Energize and turn on the unit; wait for 1 min Measure the voltage at both ends of big electrolytic capacitor with the DC notch of universal meter There is malfunction for the...
  • Page 80 Service Manual (5) Malfunction of Overload Protection (E8) Main check point: Whether the tube temperature sensor is normal? Whether the outdoor ambient temperature is within the normal range? Whether indoor fan and outdoor fan can operate normally? Whether radiation environment inside or outside the unit is good? Malfunction diagnosis process: Start Replace the tube temperature...
  • Page 81 Service Manual (6) Malfunction of IPM Protection (H5) Main check point: Whether input voltage is within the normal range? Whether wires of compressor are connected reliably, tightly or correctly? Whether the resistance of compressor coil is normal? Whether the insulation between compressor coil and copper pipe is in good condition? Whether the unit is overloading? Whether the radiation for the unit is in good condition? Whether the volume of charged refrigerant is proper?
  • Page 82 Service Manual (7) Malfunction of PFC Protection (HC) Main check point: Whether power supply is normal? Malfunction diagnosis process: Start Check whether power supply is normal Turn on the unit again after the power is Is power abnormal? resumed Replace main board of outdoor unit Installation and Maintenance...
  • Page 83 Service Manual (8) Malfunction of Communication (E6) Main check point: Check whether connection wires between indoor unit and outdoor unit and wiring inside the unit are connected well? Check the main board of indoor unit or main board of outdoor unit is damaged? Malfunction diagnosis process: Communication malfunction De-energize the unit and then...
  • Page 84 Service Manual (9) Malfunction of Failure Start-up of Compressor (LC) Main check point: Whether the compressor wires are connected correctly? Whether the stop time for compressor is enough? Whether compressor is damaged? Whether the refrigerant-charging volume is superfluous? Malfunction diagnosis process: Energize and turn on the unit Whether the stop time for...
  • Page 85 Service Manual (10) Malfunction of Overcurrent Protection E5 Main detection points: ● Is the supply voltage unstable with big fluctuation? ● Is the supply voltage too low with overload? ● Hardware trouble? Malfunction diagnosis process: Start Normal fluctuation should be within 10 % Is malfunction Is the supply voltage unstable of the rated voltage on the nameplate...
  • Page 86 Service Manual (11) Other Malfunction 1.IPM module temperature sensor is open-circuited (P7) Hardware of main board is damaged. Please replace main board. 2.Overheating protection of IPM module (P8) ① Poor radiation because the module radiator is dirty; ② IPM module is damaged; ③...

  • Page 87: Troubleshooting For Normal Malfunction

    Service Manual 9.3 Troubleshooting for Normal Malfunction 1. Air Conditioner Cant be Started Up Possible Causes Discriminating Method (Air conditioner Status) Troubleshooting Confirm whether its due to power failure. If yes, No power supply, or poor After energization, operation indicator isnt bright wait for power recovery.
  • Page 88 Service Manual 4. ODU Fan Motor Cant Operate Possible causes Discriminating method (air conditioner status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...

  • Page 89: Removal Procedure

    Service Manual 10. Removal Procedure Caution: discharge the refrigerant completely before removal. 10.1 Removal Procedure of Indoor Unit 1.Remove fifter assy Front panel Open the front panel. Push the left and rightfilters to make them break away from thegroove on the front case. Then remove the leftand right filters one by one.
  • Page 90 Service Manual 4.Remove electric box cover 2 Remove the screws on the electric box cover 2 and detecting plate(WIFI), then remove the electric box cover 2 and detecting plate(WIFI). Electric box cover2 Screw Note:The position of detection Detecting plate(WIFI) Electric box cover board(WIFI) may be different for different models.
  • Page 91 Service Manual Step Procedure 7.Remove vertical louver Loosen the connection clasps between vertical louver and bottom case to remove vertion louver. Swing motor Screw off the screws that are locking the swing motor and take the motor off. 8.Remove electric box assy Loosen the connection clasps between shield cover of electric box sub-assy and electric box,and then remove the shield...
  • Page 92 Service Manual Step Procedure Rotate the electric box assy. Twist off the screws Rotate the electric box assy. Twist offthe that are locking the wire clip and loosen the Screws screwsthat are locking the wire clip and power cord. Remove the wiring terminal of loosen the power cord.
  • Page 93 Service Manual Step Procedure Adjust the position of conncetion pipe on evaporator up wards to remove it. 10.Remove motor and cross flow blade Remove the screws fixing motor clamp and then remove the motor clamp. ① Remove the screws at the connection place of cross flow blade and motor;...

  • Page 94: Removal Procedure Of Outdoor Unit

    Service Manual 10.2 Removal Procedure of Outdoor Unit Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Step Procedure 1. Remove big handle Remove the screw fixing big handle; slide out Screw the big handle down wards to make the clasp Big handle...
  • Page 95 Service Manual Step Procedure 4.Remove cabinet Remove the screws fixing cabinet and then remove the cabinet. Cabinet Screw 5.Remove right side plate and rear grill Remove the screws fixing right side plate Right side plate and then remove the right side plate. Screw Screw Remove the screws and then remove the...
  • Page 96 Service Manual Step Procedure 6.Remove lef side plate Remove the screws fixing left side plate and then remove the letf side plate. Left side plate Screw 7.Remove axial flow blade Axial flow blade Remove the nut fixing axial flow blade and then remove the axial flow blade.
  • Page 97 Service Manual Step Procedure 9.Remove motor Remove the screws fixing motor and then remove the motor. Screw Motor 10.Remove motor support Motor support Remove the screws fixing motor support and then remove the motor support. Screw 11.Remove 4-way valve assy Unsolder the spot weld of 4-way valve assy, compressor and condenser, and then remove the 4-way valve assy .
  • Page 98 Service Manual Step Procedure 12.Remove compressor Remove 3 foot nuts on compressor, and then remove the compressor. Foot nuts Note: Protect the ports of discharge pipe and suction pipe to avoid foreign objects to enter it. Compressor 13.Remove clapboard Remove the screws fixing clapboard and Screw then remove the clapboard.
  • Page 99 Service Manual Step Procedure Condenser 15.Remove condenser Remove one screw fixing the condenser, then remove the condenser. Screw Installation and Maintenance...
  • Page 100 Service Manual Warning: Be sure to wait for a minimum of 20 minutes after turning off all power supplies and discharge the refrigerant completely before removal. Steps Procedure 1. Remove big handle,valve cover and top cover big handle Remove the screw connecting the big handle and right side plate, and then remove the big handle.
  • Page 101 Service Manual Steps Procedure Remove the screws connecting the outer case with motor support, isolation plate and chassis; lift the outer case upwards; loosen the clasps of outer case with right side plate and left side plate, and then remove the outer case. outer case 3.
  • Page 102 Service Manual Steps Procedure 4. Remove axial flow blade Remove the nut fixing axial flow blade and then remove the blade. axial flow fan motor support Remove the 6 screws fixing the motor and then remove the motor. Remove the 2 screws connecting the motor support and chassis, and then loosen the stopper to remove the motor support.
  • Page 103 Service Manual Steps Procedure 6. Remove the soundproof sponge Tear off the sticking stripe and then remove the soundproof sponge. soundproof sponge 7. Remove isolation plate Remove the 2 screws connecting the isolation plate and condenser side plate; remove the 3 screws connecting the isolation plate and chassis, and then remove the isolation plate.
  • Page 104 Service Manual Steps Procedure 9. Remove compressor compressor Remove the 3 foot nuts fixing compressor and then lift the compressor upwards to remove the compressor and damping cushion. Note: Keep the ports of discharge pipe and suction pipe from foreign objects. condenser sub-assy 10.

  • Page 105: Appendix

    Service Manual Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius( Celsius( Celsius( temperature temperature temperature 60.8 69/70 69.8 78/79 78.8 62/63...

  • Page 106: Appendix 3: Pipe Expanding Method

    Service Manual Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 107: Appendix 4: List Of Resistance For Temperature Sensor

    Service Manual Appendix 4: List of Resistance for Temperature Sensor Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor (15K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009...
  • Page 108 Service Manual Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (20K) Temp( C) Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( Resistance(kΩ) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9 4.443 1.269 137.2...
  • Page 109 Service Manual Resistance Table of Discharge Temperature Sensor for Outdoor (50K) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) Temp( C) Resistance(kΩ) Temp( Resistance(kΩ) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8 77.35 15.17 4.08...
  • Page 110 PARTS GUIDE FOCUS SERIES ASH-18BIF, ASH-24BIF...
  • Page 111 Exploded view of indoor unit ASH-18BIF...
  • Page 112 Description Part Code Actualization Price Code MODEL: ASH-18BIF Indoor 1 Decorative Strip none 2 Front Panel 27230009459 3 Display Board 300001000081 4 Filter Sub-Assy 11122089 5 Decorative Board (Left) none 6 Front Case Assy 00000200042 7 Guide Louver 1051276501 8 Axile Bush...
  • Page 113 Exploded view of outdoor unit ASH-18BIF...
  • Page 114 Description Part Code Actualization Price Code MODEL: ASH-18BIF Outdoor 1 Front Grill 22413046 2 Front Panel Assy 0153305105 3 Axial Flow Fan 10333014 4 Chassis Sub-assy 017000000198P 5 Drainage Joint 26113009 6 Compressor and Fittings 00103919G 7 4-Way Valve Assy...
  • Page 115 Exploded view of indoor unit ASH-24BIF...
  • Page 116 Description Part Code Actualization Price Code MODEL: ASH-24BIF Indoor 1 Front Panel 27230009461 2 Filter Sub-Assy 11012007 3 Screw Cover 2425245301 4 Front Case Assy 00000200043 5 Air Louver(Manual) 10512737 6 Helicoid Tongue sub-assy 26112382 7 Left Axile Bush 10512037 8 Rear Case assy 22202570 9 Rubber Plug (Water Tray)
  • Page 117 Exploded view of outdoor unit ASH-24BIF...
  • Page 118 Description Part Code Actualization Price Code MODEL: ASH-24BIF Outdoor 1 Front Grill 22415010 2 Front Panel Assy 01533058 3 Axial Flow Fan 10335008 4 Drainage Plug none 5 Chassis Sub-assy 0120581601P 6 Drainage Connecter 06123401 7 Compressor and Fittings 00103920 8 4-Way Valve 430004032 9 4-Way Valve Assy + Fittings...

  • Page 119: Technical Support

    SINCLAIR CORPORATION Ltd. 1-4 Argyll St. London W1F 7LD Great Britain www.sinclair-world.com This product was manufactured in China (Made in China). REPRESENTATIVE SINCLAIR EUROPE spol. s r.o. Purkynova 45 612 00 Brno Czech Republic TECHNICAL SUPPORT NEPA spol. s r.o. Purkynova 45...

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Ash-24bif

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