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55, 4-28 Samsung Electronics 4-4-4 Outdoor Discharge temperature sensor error 1.Checklist : 1) Is the sensor connected correctly? 2) Is the sensor placed correctly? 3) Does the both terminal of sensor satisfy the resistance value in accordance with temperature? 4) Is the resistance value of sensor connection pull-up correct? 4-4-4-1. Troubleshooting procedure (PF2) Yes Reconnect the sensor connector. Micom error or connector check No Is the sensor resistance value #3-#4 10kohm±3% at the room temperature of 25°C Is the sensor co…
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52, Samsung Electronics 4-25 4-4-2-2. Troubleshooting procedure (PF3) Yes Reconnect the sensor connector. Micom error or connector check No Is the sensor resistance value #1-#2 10kohm±3% at the room temperature of 25°C Is the sensor connector(CN502) connected correctly in accordance with a colorRED,4PIN)? Sensor Replace Sensor resistance value : 20°C - 12.09kohm 30°C - 8.31kohm …
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20, Samsung Electronics 3-11 No Parts Procedure Remark 5 compressor 1) disconnect the compressor lead wire . 2)disassembly the felt comp sound. loosen the 3 bolts at the bottom . CAUTION When removing the compressor, Heat Exchanger, and Pipe, purge the Coolant inside the Compressor complete- ly and remove the pipe with a welding flame.
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42, Samsung Electronics 4-15 4-3 Troubleshooting by symptoms 4-3-1 Indoor temperature sensor (open/short) Indoor unit display X(Operation) X(Defrost) (Reservation) X(Fan) X(VIRUS DOCTOR) Criteria In case of disconnection or short-circuit of the indoor temperature sensors Cause of problem Disconnection or short-circuit of the relevant sensors Yes No No At that time, does the resistance value deviate from the temp. table beside? Yes Is indoor temp. sensor co…
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38, Samsung AC026MNJDKH/EU Samsung Electronics 4-13 4-2-4 Troubleshooting for outdoor unit The table below list the self-diagnostic routines. For some of error codes, you must contact an authorized service centre. If an error occurs during the operation, it is displayed on the outdoor unit PCB LED, both MAIN PCB and INVERTER PCB. No. Error Code Meaning Remarks 1 E108 Error due to duplicated communication address Check on repeated indoor unit main address 2 E121 Error on room temperature sensor of indoor unit (Short or Open) Indoor unit Room Thermistor Open/Short 3 …
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59, 4-32 Samsung Electronics 4-4-7 Compressor starting error 1.Checklist : 1) Is the connection of cable for the compressor? 2) Is the compressor wire is connected clockwise? U(RED)-V(BLU)-W(YEL) 3) Is the interphase resistance of compressor normal? 2. Troubleshooting procedure Terminate the service Download the EEPROM data No Is the restart error occurred again? Is the connection of compressor wire is normal? Connect the comp wire normally No No No Yes Terminate the service Exchange the Outdoor PBA Is the rest…
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3, Samsung Electronics 3 4-4-2 Outdoor temperature sensor error .................................................................................... 4-24 4-4-3 Outdoor Coil temperature sensor error .............................................................................................. 4-26 4-4-4 Outdoor Discharge temperature sensor error ................................................................. 4-28 4-4-5 Outdoor Discharge over t…
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73, 4-46 Samsung Electronics 4-4-21 MDS Error Flow chart No No No No No MDS Function On Check is seg23 set to “0” in option code Check the wire connection Check the MDS kit Check the main PBA MDS has no problem Does any error message pop up ? Set seg23 to 1~8 digit -Replace wire of MDS -Connect wire of MDS Replace MDS Kit Replace Main PBA Start End Yes Yes Yes Yes Yes ◆MDS Function only can be set in wired remote controller or central controller. ◆Error Message(Error message will be appeared after 3minutes) -Wi…
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14, Samsung Electronics 3-5 No Parts Procedure Remark 3) Release 2 screws and pull Bottom Discharge Kit( ⓖ) out. 4) Disconect the Step Motor wire( ⓗ) from the conect wire . This part is right side of the Bottom Discharge Kit( ⓖ). 5) Pull Bottom Discharge Kit(ⓖ) Out from the bottom of it. 6) Release 3 screws and pull the Evap out from top to bottom direction. ⓖ ⓗ ⓖ
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81, Samsung Electronics 6-1 6. Wiring Diagram 6-1 Indoor Unit This Document can not be used without Samsung’s authorization.
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12, Samsung Electronics 3-3 No Parts Procedure Remark 2 Electrical Parts 1) Open the cover of Control Boxⓓ). 2) Pull the PBA out along the slide guide. 3) Cut the Cable tie. 4) Pull all wires out from the PBA. ⓓ
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41, 4-14 Samsung Electronics Wired remote controller (cont.) Error mode Contents Measure Product operation in error condition Error type Outdoor unit/ Compressor/Indoor unit [Inverter] IPM over current error Check coolant charging Check the compressor connection status and normal operation Check the obstacles around the indoor and outdoor units Check whether the outdoor unit service valve is open Check whether the indoor/outdoor installation pipe/ wiring are correct Operation Off Outdoor unit protection contro…
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4, Samsung Electronics 1-1 1. Precautions 1-1 Precautions for the Service ◆ Use the standard parts when replacing the electric parts. – Confirm the model name, rated voltage, rated current of the electric parts. ◆When repairing the equipment, connection of the harness parts must be firm and solid. – A loose connection may cause noise or other malfunction. ◆When assembling and disassembling the equipment …
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50, Samsung AC026MNJDKH/EU Samsung Electronics 4-23 4-4-1 Communication error 1. 1.Checklist : 1) Is the cable between the indoor unit and outdoor unit connected correctly? 2) Isn't the power cable and communication cable cross? 2. Troubleshooting procedure Yes Restart after power off. Terminate the service Exchange the indoor unit PBA. No Is the communication error occurred again? Yes Correct the wrong cable No Is the connection of power cable and communication cable normal? Yes Exchange the PBA of no power unit No I…
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58, Samsung AC026MNJDKH/EU Samsung Electronics 4-31 4-4-6 Outdoor Fan motor error 1.Checklist : 1) Are the input power voltage and the power connection correct? 2) Is the motor wire connected to the outdoor PBA correctly? 3) Is there no assembly error or none-assembly in the terminal of motor wire connector? 4) Is there no obstacle at the surrounding of motor and propeller? 2. Troubleshooting procedure Yes Yes Power off and Separate…
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67, Samsung AC026MNJDKH/EU 4-40 Samsung Electronics 4-4-15 Comp Vlimit error/Comp current limit error 1.Checklist : 1) Is the PFC Shunt(PF2:R062,R063,PF3:R807,R808,R809) resistance value correct? Check the resistor is opened 2) Is the condition of surrounding temperature abnormal overload? 3) Is there any problem as like the temperature sensor separation or measurement value error? 4) Is the interphase resistance of compressor normal? 2. Troubleshooting procedure …
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64, Samsung AC026MNJDKH/EU Samsung Electronics 4-37 4-4-12 DC_link voltage sensor error 1.Checklist : 1) Is the PFC Shunt(PF2:R062,R063,PF3:R807,R808,R809) resistance value correct? Check the resistor is opened 2) Is the condition of surrounding temperature abnormal overload? 3) Is there any problem as like the temperature sensor separation or measurement value error? 4) Is the interphase resistance of compressor normal? 2. Tr…
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62, Samsung Electronics 4-35 4-4-10 DC_link voltage sensor error 1.Checklist : 1) Is the input voltage of outdoor terminal block is normal? 2) Is the reactor wire connected? 3) Is the DC_link capacitor(PF2:CE101,CE102,CE103,PF3:CE001,CE002,CE003,CE004)) assembled in accordance the specification? (Outdoor PBA) 4) Is the DC_link resistor(PF2:R104,R106,R107,R108,PF3:R004,R005,R006,R007) value is normal? (Outdoor PBA) 2. Troubleshooting procedure Connect the reactor wire No Is the connected of react…
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1, Samsung AC026MNJDKH/EU Refer to the service manual in the GSPN(see the rear cover) for the more information. AIR CONDITIONER CONTENTS SYSTEM AIR CONDITIONER 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly 4. Troubleshooting 5. PCB Diagram 6. Wiring Diagram 7. Reference Sheet AC026MNADKH AC035MNADKH AC052MNADKH AC071MNADKH INDOOR UNIT OUTDOOR UNIT Model : AC026MNJDKH/EU AC035MNJDKH/EU AC052MNJDKH/EU AC026MXADKH/EU AC035MXADKH/EU AC052MXADKH/EU AC026MXADKH AC035MXADKH AC052MXADKH
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