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AIR CONDITIONER
AC026JNNCEH
AC035JNNCEH
AC026JXSCEH
AC035JXSCEH
SYSTEM AIR CONDITIONER
Indoor Unit
Model :
AC026JNNCEH
AC035JNNCEH
Model Code : AC026JNNCEH/EU
AC035JNNCEH/EU
CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Wiring Diagram
7. Reference Sheet
Outdoor Unit
AC026JXSCEH
AC035JXSCEH
AC026JXSCEH/EU
AC035JXSCEH/EU
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Table of Contents
Troubleshooting
Related Manuals for Samsung AC026JNNCEH
Summary of Contents for Samsung AC026JNNCEH
- Page 1 SYSTEM AIR CONDITIONER Indoor Unit Outdoor Unit Model : AC026JNNCEH AC026JXSCEH AC035JNNCEH AC035JXSCEH Model Code : AC026JNNCEH/EU AC026JXSCEH/EU AC035JNNCEH/EU AC035JXSCEH/EU AIR CONDITIONER CONTENTS 1. Precautions 2. Product Specifications 3. Disassembly and Reassembly 4. Troubleshooting AC026JNNCEH AC035JNNCEH 5. PCB Diagram 6. Wiring Diagram 7.
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Page 2: Table Of Contents
Contents 11. Precautions ............................1-1 Precautions for the Service ......................................1-2 Precautions related to static electricity and PL 1-3 Precautions related to product safety ................... 1-4 Other precautions ..........................12. Product Specifications ..............................................2-1 The Feature of Product 2-2 Product Specifications ........................ - Page 3 ......................4-4-1 Communication error 4-23 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 temperature error ..............4-30 4-4-6 Outdoor Fan motor error ........................4-31 4-4-7 Compressor starting error ........................
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Page 4: Precautions
Check whether the installation location is at least two meters away from other electronic products such as TV, video, or audio. – Otherwise, the video quality might be degraded or noise might be generated. Do not let end users repair the products themselves. – Unauthorized disassembly might cause electric shock or fire. Samsung Electronics... -
Page 5: Precautions Related To Product Safety
– Release the high pressure and low pressure valve caps. – Close the high pressure valve completely using an L-wrench – After about two minutes, close the low pressure valve completely. – Stop running the air conditioner. – Separate the connecting pipe. Samsung Electronics... -
Page 6: Product Specifications
With the advanced BLDC inverter technology, it makes a room cool with highly energy saving and arises the efficiency of air conditioner. Long Ambient Operation(In Low Temperature) It can arise the reliability and the capacity of the air conditioner, especially operated in low temperature. Eco-friendly Product(Lead-Free, RoHS, WEEE) Easy installation of ultra-lightweight indoor unit Samsung Electronics... -
Page 7: Product Specifications
2-2 Product Specifications (cont.) AC026JNNCEH/EU AC035JNNCEH/EU ITEM AC026JXSCEH/EU AC035JXSCEH/EU Indoor Unit Outdoor Unit IMAGE Remote Controller Power Product 1Φ, 220-240V/50Hz 1Φ, 220-240V/50Hz Indoor L x H x D 575*250*575 575*250*575 Panel L x H x D 670*45*670 670*45*670 Outdoor L x H x D... -
Page 8: Accessories
Essential Offer (Indoor Unit) Seal-drain ass'y DB62-11028H Seal-drain ass'y DB62-11028J USER MANUAL/INSTALLATION DB68-05396A MANUAL DB68-05398A INSTALLATION DB68-05400A MANUAL Essential Offer (Outdoor Drain Plug DB67-20011A Unit) Rubber Leg DB73-20134A BOLT 6011-003975 Essential Offer ASSY-INSTALLATION DB98-34364A MANUAL (Panel) CARD WARRNATY DB68-02596B Samsung Electronics... -
Page 9: Disassembly And Reassembly
3. Disassembly and Reassembly Necessary Tools Item Remarks +SCREW DRIVER Adjustable Wrench (8mm, 10mm, 13mm) M6, M8 Hex Wrench Samsung Electronics... -
Page 10: Indoor Unit
3-1 Indoor unit AC026JNNCEH / AC035JNNCEH Parts Procedure Remark Panel 1) Pull both hooks and take the grille downward. Two safety clips are mounted to the front grille to prevent it from dropping. 2) Detach the safity clip and take up the grille. - Page 11 Control-Box 1) Disconnect the Connector Wire that is connected to the indoor unit’s PBA 2) Unscrew the 2 fixed screws on both sides of the Control Box, and disassemble the Control Box from the indoor unit.(Use +Screw Driver) Samsung Electronics...
- Page 12 2) Push the Bell-Mouth in the direction opposite to where it’s installed on the Control-Box to remove it. Drain Pan 1) Unscrew the screws on the 4 corners of the indoor unit. (Use +Screw Driver) 2) Remove the Drain Pan from the indoor unit. Samsung Electronics...
- Page 13 Drain-Hose out from the indoor unit to disassemble the transparent Drain-Hose fixed on the side of the indoor unit. (Use +Screw Driver) 1) Use your hand to remove the temperature Evap. sensor attached to the Evap Pipe along with Temperature the fixing clip. Sensor Samsung Electronics...
- Page 14 1) Remove the screws of the Steel Holder Evaps that are used to fix the Heat Exchanger, and then remove it. (Use +Screw Driver) 2) Remove the 2 fixing screws of the Partition Evap at the Heat Exchanger’s In/Out Pipe. (Use +Screw Driver) Samsung Electronics...
- Page 15 Parts Procedure Remark 3) Remove the screw of the Cover Pipe that is used to fix the In/Out Pipe. Remove the In/Out Pipe. (Use +Screw Driver) 4) Remove the Heat Exchanger from the indoor unit’s cabinet. Samsung Electronics...
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Page 16: Outdoor Unit
1) loosen 1 pcs screw of cover control,and detach it. 2) loosen 5 pcs screws on both right and left cabniet side edges and to detach the cover-top 3) Loosen 7 screwsfixed to disassemble cabi-front , and detach it. Samsung Electronics... - Page 17 Parts Procedure Remark common work 4) loosen 7 screws to disassemble the cabi- right ,and detach it. 5) loosen 2 screws to disassemble steel-bar. 6) loosen 3 screws to disassemble cabi-left. Samsung Electronics...
- Page 18 Remark fan&motor 1) loosen 1 screw as indication and detached the fan. 2) loosen 4 pcs motor screws and disconnect the wire betwwen assy control out and motor. 3) loosen 2 pcs bracket-motor screw and detach it. 3-10 Samsung Electronics...
- Page 19 Heat exchanger 1) Release the refrigerant at first 2) Looosen fixing screw on both side. 3) disaessembly the pipes in both inlet and outlet with welding torch. 4) detach the heat exchanger. Samsung Electronics 3-11...
- Page 20 Parts Procedure Remark compressor 1) disconnect the compressor lead wire . 2)disassembly the felt comp sound. loosen the 3 bolts at the bottom of 3-12 Samsung Electronics...
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Page 21: Troubleshooting
For example : SEG2, 3 SEG4, 5 SEG6, 8 SEG9, 10 SEG11, 12 SEG 14, 15 SEG 16, 17 SEG 18, 20 SEG 21, 22 SEG23, 24. On(SEG1~12) Off(SEG13~24) SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 Samsung Electronics... - Page 22 11. Setting SEG14, SEG15 option Press Low Fan button( ) to enter SEG14 value. ∨ Press High Fan button( ) to enter SEG15 value. ∧ Each time you press the button, will be selected in rotation. … SEG14 SEG15 Samsung Electronics...
- Page 23 Step 5. Check operation 1. Reset the indoor unit by pressing the RESET button of indoor unit or outdoor unit. 2. Take the batteries out of the remote controller and insert them again and then press the operation button. Samsung Electronics...
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Page 24: Setting An Indoor Unit Address (Main/Rmc)
Example) If you want to set as "MAIN : 3, CHANNEL : 1, RMC : B", SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 assign option codes except SEG 1, 7 which are page options. Samsung Electronics... -
Page 25: Setting An Indoor Unit Installation Option (Suitable For The Condition Of(Each Installation Location)
Buzzer control control of external control using filter Indication Details Indication Details Indication Details Indication Details Indication Details Indication Details Thermo Disuse Disuse Use o f b uzzer 1000 Hour Indication ON/OFF Details Control Operation Non use 2000 of buzzer Hour Control Samsung Electronics... - Page 26 : 2000hr", SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 SEG16 SEG17 SEG18 SEG19 SEG20 SEG21 SEG22 SEG23 SEG24 assign option codes except SEG 1, 7, 13, 19 which are page options. Samsung Electronics...
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Page 27: Changing A Particular Option
The unit digit of The changed Explanation PAGE MODE mode you want an option SEG an option SEG value to change you will change you will change Indication 4-1-5 Option code for each model Model OPTION CODE AC026JNNCEH/EU 01526F-1910C8-271A22-370000 AC035JNNCEH/EU 01526F-1920F9-27232B-370000 Samsung Electronics... -
Page 28: Items To Check Before Diagnostics
• Inspection for match between indoor and outdoor machine models -.Check the wire connection MDS-kit error -. Check the MDS-KIT operation-on operation-on operation-on page 4-49 -.Check the indoor PBA : On : Blink X : Off Samsung Electronics... -
Page 29: Test Run Mode And View Mode
2 : Down Protection control 1 : heating 2 : non-stop 3 : Up_limit defrosting 4 : Sown_limit 3 : over-load 4 : discharge Group address of indoor heat Three digits Two digits One digit exchanger S/W check 4-10 Samsung Electronics... -
Page 30: Eco Mode(Power Save)
4-2-3 ECO mode(Power save) ECO mode lamp : RED Display ECO mode lamp Mode Segment 1 Segment 2 Segment 3 Segment 4 RED color ECO mode “BLANK” “BLANK” “BLANK” “BLANK” Exit ECO mode Press K3 to exit Samsung Electronics 4-11... -
Page 31: Troubleshooting For Outdoor Unit
Check Outdoor Inverter PBA E500 IPM is over heated. Check Outdoor Inverter PBA E554 GAS Leak error Check indoor and outdoor unit model E556 Capacity miss match between indoor and outdoor Check indoor and outdoor unit model 4-12 Samsung Electronics... - Page 32 Operation Off protection of the compressor control error Check the input power Outdoor unit [Inverter] Total current error/PFC over Check the coolant charging status Operation Off protection current error Check the normal operation of outdoor fan control error Samsung Electronics 4-13...
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Page 33: Wired Remote Controller
Wired remote Normal operation error COM2 terminal of the indoor unit controller error Wired remote controller COM2 Wired remote Check that Com1, Com2 setting DIP switch is set to Com2 Normal operation option setting error controller error 4-14 Samsung Electronics... -
Page 34: Indoor Temperature Sensor (Open/Short)
In this case, is the resistance 8.300 value out of range in the temperature table on the right? 10.00 12.10 Indoor temperature sensor 14.70 failure (replace) 18.00 Restart the system after replacing the PCB 22.00 28.30 33.90 42.30 Samsung Electronics 4-15... - Page 35 In this case, is the resistance 8.300 value out of range in the temperature table on the right? 10.00 12.10 Failure of the indoor heat 14.70 exchanger temperature sensor (replace) 18.00 Restart the system after replacing the PCB 22.00 28.30 33.90 42.30 4-16 Samsung Electronics...
- Page 36 PCB? Connect the connector to PCB and restart the unit Is there foreign substance stuck in the motor fan? Remove the foreign substance and restart the unit Replace the PCB and restart the unit Samsung Electronics 4-17...
- Page 37 PCB and replace the PCB Reconnect the cable connecting the outdoor unit to the indoor unit and restart the unit. If the communication still doesn’t work, replace the indoor unit PCB. Good +0.7V -0.7V 4-18 Samsung Electronics...
- Page 38 Is the terminal voltage around AC 220V? Is the water level in drain pan decreasing? Replace the drain pump Replace the indoor unit PCB Normal operation • F loat sensor error is cleared only Replace the drain pump when the indoor power is reset Samsung Electronics 4-19...
- Page 39 EEPROM component failure, EEPROM circuit parts missing/damaged/soldering failure Are the EEPROM circuit components in good conditions? (missing components / damage / soldering failure) Replace the PCB if the restart fails Restart the unit after replacing the PCB 4-20 Samsung Electronics...
- Page 40 Is the voltage between Replace the inverter PBA the terminal 2 (~) and 4 (~) of the bridge diode 220V? Is the fuse connected? Replace the fuse Replace the inverter PBA Is the resistance value of R001 200Ω? Cont. Samsung Electronics 4-21...
- Page 41 Outdoor unit is not powered on – Initial diagnosis (cont.) Cont. Is the reactor connector Connect the reactor connected correctly? Replace the PBA. 4-22 Samsung Electronics...
- Page 42 Is the power is normal? Exchange the PBA of no power unit (check the LED Lamp Exchange the indoor unit PBA. Terminate the service. Is the communication error occurred again? Exchange the outdoor unit PBA. Samsung Electronics 4-23...
- Page 43 Connect the sensor to PBA connector (6pin) supply power and measure the voltage of #1-#2 in the connector Exchange the PBA of no power unit Below 0.5V or Over 4.5V? Micom error or connector check Exchange the Outdoor PBA 4-24 Samsung Electronics...
- Page 44 Connect the sensor to PBA connector (4pin) supply power and measure the voltage of #1-#2 in the connector Exchange the PBA of no Ourdoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the Outdoor PBA Samsung Electronics 4-25...
- Page 45 40°C - 5.83kohm Connect the sensor to PBA connector (6pin) supply power and measure the voltage of #5-#6 in the connector Exchange the Outdoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the Outdoor PBA 4-26 Samsung Electronics...
- Page 46 40°C - 5.83kohm Connect the sensor to PBA connector(4pin) supply power and measure the voltage of #3-#4 in the connector Exchange the Outdoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the Outdoor PBA Samsung Electronics 4-27...
- Page 47 40°C - 115kohm Connect the sensor to PBA connector (6pin) supply power and measure the voltage of #3-#4 in the connector Exchange the Outdoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the Outdoor PBA 4-28 Samsung Electronics...
- Page 48 40°C - 115kohm Connect the sensor to PBA connector(4pin) supply power and measure the voltage of #3-#4 in the connector Exchange the Outdoor PBA Below 0.5V or Over 4.5V? Micom error or connector check Exchange the Outdoor PBA Samsung Electronics 4-29...
- Page 49 Restart after power off Is the discharge over temperature sensor error Terminate the service appeared again? Download the EEPROM data Is the discharge over temperature sensor error Terminate the service appeared again? Exchange the Outdoor PBA Exchanged the Compressor 4-30 Samsung Electronics...
- Page 50 Is the voltage of CN901 #3-#5 and #3-#6 with in Exchange the Outdoor PBA 1Vdc~15Vdc during the operation? PBA problem or Motor problem Change the PBA first and check the operation Exchange the Fan motor Samsung Electronics 4-31...
- Page 51 Connect the comp wire normally Is the connection of compressor wire is normal? Download the EEPROM data Is the restart error occurred again? Terminate the service Is the compressor body and interphase Exchange the Outdoor PBA resistance insulated? Exchanged the Compressor 4-32 Samsung Electronics...
- Page 52 Connect the comp wire normally Is the connection of compressor wire is normal? (PBA and Compressor) Is the restart error occurred again? Terminate the service Is the compressor body and interphase Exchange the Outdoor PBA resistance insulated? Exchanged the Compressor Samsung Electronics 4-33...
- Page 53 Terminate the service occurred again? Correct the sensor position or exchange the Is the position of temperature sensor and sensor sensing value normal? Is the compressor body and interphase Exchange the Outdoor PBA resistance insulated? Exchanged the Compressor 4-34 Samsung Electronics...
- Page 54 Normal range(280Vdc~320Vdc) Is the DC_link sensing voltage(R104 or R004) is normal in Exchange the Outdoor PBA operation mode? Normal range (0.2Vdc~2.8Vdc) Exchange the Outdoor PBA Is the reactor insulation damaged? Exchange the Reactor Samsung Electronics 4-35...
- Page 55 Normal range(280Vdc~320Vdc) Is the DC_link sensing voltage(R104 or R004) is normal in Exchange the Outdoor PBA operation mode? Normal range (0.2Vdc~2.8Vdc) Exchange the Outdoor PBA Is the reactor insulation damaged? Exchange the Reactor 4-36 Samsung Electronics...
- Page 56 Check the input power mode? Normal range(280Vdc~320Vdc) Is the DC_link sensing voltage(R104 or R004) is normal in Exchange the Outdoor PBA operation mode? Normal range (0.2Vdc~2.8Vdc) Exchange the Outdoor PBA Is the reactor insulation damaged? Exchange the Reactor Samsung Electronics 4-37...
- Page 57 Correct the sensor position or exchange the Is the position of temperature sensor and the sensing value sensor normal? Is the connection cable for the compressor and Correct the cable connection power terminal normal? Exchange the Outdoor PBA 4-38 Samsung Electronics...
- Page 58 3) Is there no short or open around IC451(PF2) or IC451,IC452(PF3)? 2. Troubleshooting procedure Restart after power off. Exchange the Outdoor PBA Is the PFC shunt and IPM shunt resistance value correct? Terminate the service Is the current sensor error appeared again? Exchange the Outdoor PBA Samsung Electronics 4-39...
- Page 59 4) Is the cover assembly in conrol-box normal? 2. Troubleshooting procedure Restart after power off. Fastening the screw Are there screws in PBA-heatsink? (4 screws) Check the fan connection Is the fan operation normal? Change the Fan motor Exchange the Outdoor PBA 4-40 Samsung Electronics...
- Page 60 Terminate the service again? Is the position of temperature sensor and Correct the sensor position or exchange the sensing value normal? sensor Is the compressor body and interphase Exchange the Outdoor PBA resistance insulated? Exchange the Outdoor PBA Samsung Electronics 4-41...
- Page 61 3) Did you download or insert EEPROM IC, after changing outdoor PBA? 2. Troubleshooting procedure power off and download EEPROM data (or. Insert the service EEPROM IC) Restart after power off Terminate the service Is the error appeared again? Exchange the Outdoor PBA 4-42 Samsung Electronics...
- Page 62 1) Check the power condition at customer's house (Is there any power noise?) 2) Have been there power failure? 2. Troubleshooting procedure Restart after power off Is the AC line zero cross signal error appeared Terminate the service again? Exchange the Outdoor PBA Samsung Electronics 4-43...
- Page 63 * Heating mode * * Cooling mode * Is the outdoor temperature over 40°C or under Is the outdoor temperature under °C? -30°C? The temperature condition is too poor to operate. Wait until temperature is changed 4-44 Samsung Electronics...
- Page 64 Reset the option code again at indoor unit Is the capacity miss match error appeared Terminate the service again? Download the EEPROM data Terminate the service Is the capacity miss match error appeared again? Exchange the Outdoor PBA Exchange the Indoor PBA Samsung Electronics 4-45...
- Page 65 Is the EEV valve is operation? Change the EEV valve Check the sound of EEV valve after power on. Check the pipe crack. Is the pressure of refrigerant normal? Fill up the refrigerant. Exchange the Indoor PBA Exchange the Outdoor PBA 4-46 Samsung Electronics...
- Page 66 MDS Function only can be set in wired remote controller or central controller. Error Message(Error message will be appeared after 3minutes) -Wired remote controller: “E143” message is pop up. -Display Panel: Operation & filter LED is blinking at the same time,after indoor unit is power off. Samsung Electronics 4-47...
- Page 67 5. PCB Diagram and Parts List 5-1 Indoor Unit 5-1-1 MAIN PCB 21 23 Samsung Electronics...
- Page 68 #6 : DC12V #7~#10: LOUVER SIGNAL OUTPUT ㉑ (21) CN801-SPI ㉒ TB101-AC POWER ㉓ TE04-COMMUNICATION #1: GND #1: POWER(L) #1: COM1(F1) #2: GND #2: POWER(N) #2: COM1(F2) #3: SPI SIGNAL OUTPUT(DC12V) #3: V1(DC12V) #4: V2(GND) #5: COM2(F3) #6: COM2(F4) Samsung Electronics...
- Page 69 5-1-2 Panel PCB ① CN01-DISPLAY #1 : DC 12V #2~5 : LED control signal #6 : Remocon signal out #7~8 : Not used #9 : Remocon signal IN #10: GND #11: DC 5V Samsung Electronics...
- Page 70 SUB PBA POWER:SMW200-05P BLK EEVA:SMW250-05 RED COMP:DBT061-3P WHT SMPS: SMW250-03 BLU EEPROM:B7P-MQ WHT TEMP SENSOR: SMW200-08P WHT MAIN DOWNLOAD:YDW200-20 BLK SUB PBA: SMW200-10P BLK DRED:SMW250-05 WHT INV DOWNDOWN: YDAW200-20TR BLK SUB PBA: SMW200-10P WHT ENABLE CGND: SMW250-03 RED EEVB/SUB PBA:SMW250-05 YEL Samsung Electronics...
- Page 71 6. Wiring Diagram 6-1 Indoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...
- Page 72 6-2 Outdoor Unit This Document can not be used without Samsung’s authorization. Samsung Electronics...
- Page 73 PACK MULTI RAC-Vivace AIR HANDIING UNIT DVM HOME AIR HANDLING UNIT SINGLE HYDRO UNIT MULTI HYDRO UNIT MONO HYDRO UNIT WATER TANK FLAT ※ "/" can be removed from the buyer card if there are not enough digits. STAND Samsung Electronics...
- Page 74 8 Languages English ★ Only display the Global 4 way with Korean/ English K separator. Pattern Waffle Stripe Korean Global market use 4 Way Export/ Panel foreign market use ※ Model name for the column/bundle packaging is “~S”. Samsung Electronics...
- Page 75 You can open the valve by turning the need valve counterclockwise using hex wrench, and it is used for vacuum, gas purging, coolant injection, coolant purging, and indoor-outdoor unit connection. ACCUMULATOR Accumulator prevents the flow of liquid-state coolant into the compressor. (Liquid-state coolant flowing into the compressor will overload the compressor.) Samsung Electronics...
- Page 76 27/19 27/1 21/15 Outdoor Temp.(°C) Heating S Heating 35.0 Indoor (°C) 28/18 27/19 20/15 Outdoor(°C) 30.0 34.3 34.0 30.6 29.8 29.5 26.6 25.0 25.4 25.1 22.6 32/2 28/18 20.0 24.2 24.0 21.6 27/19 27/1 20/15 15.0 Outdoor Temp.(°C) Samsung Electronics...
- Page 77 © Samsung Electronics Co., Ltd. Mar. 2015. This Service Manual is a property of Samsung Electronics Co., Ltd. Printed in China. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No. DB68-00000A (1)