Samsung AC052JB1DEC, AC026MN1DKH, AC036JCADEC, AC071JCADEC, AC035MN1DKH Service Manual
...
AIR CONDITIONER CONTENTS
SYSTEM AIR CONDITIONER
1. Precautions
2. Product Specifications
3. Disassembly and Reassembly
4. Troubleshooting
5. PCB Diagram
6. Reference Sheet
Indoor Unit Outdoor Unit
Model : AC036JB1DEC AC036JCADEC
AC052JB1DEC AC052JCADEC
AC071JB1DEC AC071JCADEC
AC026MN1DKH
AC035MN1DKH
Model Code : AC036JB1DEC/TL AC036JCADEC/TL
AC052JB1DEC/TL AC052JCADEC/TL
AC071JB1DEC/TL AC071JCADEC/TL
AC026MN1DKH/TK
AC035MN1DKH/TK
AC026MN1DKH/EU
AC035MN1DKH/EU
AC036JB1DEC/TL
AC026MN1DKH/TK
AC035MN1DKH/TK
AC026MN1DKH/EU
AC035MN1DKH/EU
AC036JCADEC/TL
AC052JCADEC/TL
AC052JB1DEC/TL
AC071JB1DEC/TL
AC071JCADEC/TL
Contents
11. Precautions
........................................................................................................................................
1-1
1-1 Precautions for the Service
..............................................................................................................
1-1
1-2 Precautions related to static electricity and PL
............................................................................
1-1
1-3 Precautions related to product safety
...........................................................................................
1-2
1-4 Other precautions
..............................................................................................................................
1-2
12. Product Specifications
...............................................................................................................
2-1
2-1 The Feature of Product
.....................................................................................................................
2-1
2-2 Product Specifications
......................................................................................................................
2-2
2-3 Accessories
..........................................................................................................................................
2-3
13. Disassembly and Reassembly
...............................................................................................
3-1
3-1 Indoor Unit
.........................................................................................................................................
3-2
3-2 Outdoor Unit
.....................................................................................................................................
3-15
14. Troubleshooting
............................................................................................................................
4-1
4-1 Setting an indoor unit address and installation option
............................................................
4-1
4-1-1 The procedure of setting option
..........................................................................................
4-1
4-1-2 The procedure of setting option
..........................................................................................
4-2
4-1-3 Order for Setting Options
......................................................................................................
4-5
4-1-4 Setting an indoor unit installation option
..........................................................................
4-6
4-1-5 Changing a particular option
................................................................................................
4-8
4-1-6 Option code for each model
................................................................................................
4-9
4-2 Items to check before diagnostics
.................................................................................................
4-10
4-2-1 Test run mode and View mode
............................................................................................
4-10
4-2-2 Troubleshooting for indoor unit
.........................................................................................
4-11
4-2-3 Changing a particular option ............................................................................................................. 4-14
4-2-4 Option code for each model
................................................................................................
4-15
4-3 Items to check before diagnostics
..................................................................................................
4-16
4-3-1 Four directions cassette type
...............................................................................................
4-16
4-3-2 Indoor heat exchanger temperature sensor (open/short)
.............................................
4-19
4-3-3 ECO mode(Power save)
..........................................................................................................
4-19
4-3-4 Communication error after finishing Tracking
.................................................................
4-21
4-3-5 Troubleshooting for outdoor unit
.......................................................................................
4-22
4-3-6 Wired remote controller
.......................................................................................................
4-24
4-4 Troubleshooting by symptoms .................................................................................................................... 4-27
4-4-1 Indoor temperature sensor (open/short)(E121).......................................................................... 4-27
4-4-2 Indoor heat exchanger temperature sensor (open/short) (E122) ....................................... 4-28
4-4-3 Indoor FAN error (E154) ....................................................................................................................... 4-29
4-4-4 Communication error after finishing Tracking (E202) .............................................................. 4-30
4-4-5 Indoor unit float sensor error (E153) ................................................................................................ 4-31
4-4-6 EEPROM circuit failure (E162) ............................................................................................................. 4-32
4-4-7 Thermal Fuse Open Error ...................................................................................................................... 4-33
1
5. PCB Diagram and Parts List
.......................................................................................................
5-1
5-1 Indoor Unit
.........................................................................................................................................
5-1
5-1-1 Indoor Unit
..............................................................................................................................
5-1
5-1-2 Panel PCB
.................................................................................................................................
5-2
5-2 Outdoor Unit
.....................................................................................................................................
5-6
6. Reference Sheet
.................................................................................................................................
6-1
6-1 Index for Model Name
......................................................................................................................
6-1
6-2 Refrigerating Cycle Diagramc
..........................................................................................................
6-4
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 while it is laid down, lay it on soft cloth.
– Otherwise it may scratch the back of the exterior of the product.
●Remove dust or dirt completely from the housing block, wiring block and service parts during repair.
– This helps prevent the danger of fire caused by tracking or short circuit.
●Fasten the valve caps of service valves and charging valves of outdoor unit as much as possible using adjustable wrenches.
●Check the status of the components’ assembly after repair service.
– The status must be the same as before the repair service.
1-2 Precautions related to static electricity and PL
● The PCB power supply block is susceptible to static electricity. Therefore, care must be taken during repair or measuring
while the power is on.
– Wear insulation gloves for PCB repair or measuring.
● 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.
1-2 Samsung Electronics
1-3 Precautions related to product safety
●Do not pull the power cord and do not touch the power plug or aux power switch with wet hands.
– It might cause electric shock or fire.
●A damaged power line or power plug must be replaced to prevent danger.
●Do not bend the power cable with excessive force, and do not place a heavy weight on the case as it might damage the cable.
– It might cause electric shock or fire.
●Do not use multiple electric outlets.
– This might cause electric shock or fire.
●Connect the ground terminal when necessary.
– You must connect the ground terminal if you determine that there is a danger of electric leakage due to moisture or water.
●Unplug the power cable or turn off the auxiliary power switch for electric part replacement and repair service.
– Otherwise it might cause electric shock.
●Instruct end users to separate the batteries from the remote controllers and store them separately when the product is not
used for long time.
– Otherwise leakage from the dry cell may cause problems with the remote controller.
1-4 Other precautions
●The pipes should have no leaks during installation, and the compressor must be stopped before removing connecting pipes
for pump down work. Operating the compressor while the service valve is open and coolant pipe is not properly connected
may cause explosion or injury due to abnormal high pressure created inside the coolant cycle as the air can be absorbed
through the pipe.
●Pump Down work procedure (When uninstalling the product)
– Turn on the air conditioner, select cooling operation, and run the compressor for more than three minutes.
– 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 2-1
●Built-in Cassette Type
After installed, the air conditioner can be harmonized with a room interior.
●High Performance & Energy Saving
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
2. Product Specifications
2-1 The Feature of Product
2-2 Samsung Electronics
2-2 Product Specifications
ITEM
AC036JB1DEC/TL
AC026/035MN1DKH/TK
AC026/035MN1DKH/EU
AC036JCADEC/TL
AC052JB1DEC/TL
AC052JCADEC/TL
AC071JB1DEC/TL
AC071JCADEC/TL
IMAGE
Indoor Unit
Outdoor Unit
Remote Controller
Wireless remote controller
: MR-EC00
Wired remo te controller
: MWR-WE10
Power Product 1Φ, 230V/50Hz 1Φ, 230V/50Hz 1Φ, 230V/50Hz
Indoor L x H x D mm 970x135x410 1200x138x450 1200x138x450
Panel L x H x D mm
1180x25x460(PC1NUSMAN)
1198x25x500(PC1NUPMAN)
1410 x 23 x 500 1410 x 23 x 500
Outdoor L x H x D mm 790x548x285 790x548x285 880x638x310
Indoor Product kg(Net) 9.5 13.4 13.4
Outdoor Product kg(Net) 34.0 34.0 46.1
Capacity
Cooling(STD) W 3,600 5,200 7,100
Heating(STD) W - - -
Power
Consumption
Cooling(STD) W 1,200 1,730 2,730
Heating(STD) W - - -
Operation
current
Cooling(STD) A 5.5 7.8 11.5
Heating(STD) A - - -
Noise
Indoor unit (C/H) dB 35/- 39/- 41/-
Outdoor unit (C/H) dB 49/- 50/- 50/-
Refrigerant 900 900 1,000
Connecting Pipe
Liquid mm 6.35 6.35 6.35
Gas mm 12.7 12.7 15.88
Additional Refrigerant (R410A) g/m 20 20 20
Standard m 5 5 5
Extension length(Total) m 30 30 30
Extension length(Elevation) m 15 15 15
Option Code
Product Option 01707C-11042D-272800-375260 01807C-19042C-273400-372560 01807C-19044C-274800-37F560
Installation option 020000-100000-200000 -300000 020000-100000-200000-300000 020000-100000-200000-300000
Cycle Option 034000-103100-200000-300020 034C00-104000-200000-300020 034C00-103C00-200000-300020
Samsung Electronics 2-3
2-3 Accessories
■1WAY CASSETTE (AC✳✳✳JB1DEC Series)
Item Descriptions Code-No.
Q'TY
Remark
AC036JB1DEC
AC052JB1DEC
AC071JB1DEC
Pattern sheet
DB69-01947A 1 1
Essential Offer
(Indoor Unit)
DB69-01947B 1 1
DB69-03017A 1 1
DB69-03017B 1 1
Installation gauge DB69-01936A 1 1
Installation gauge DB69-03011A 1 1
Seal-drain ass'y DB62-05810A 1 1
Insulation-base DB72-00401C 2 2
Grommet hanger DB63-00237A 8 8
Cable tie DB65-10088C 3 3
Ass'y drain hose joint DB94-01258C 1 1
User & Installation
manual
DB68-05546A 1 1
2-4 Samsung Electronics
■Wireless remote controller (MR-EC00)
Item Descriptions Code-No. Q'TY Remark
Wireless remote controller DB93-14643K 1
Optional
Batteries for remote controller
(specification: ""AAA"" type)
4301-000121 2
Remote controller holder DB61-06087A 1
M4×16 screw 6002-000581 2
User’s manual DB68-04667A 1
Samsung Electronics 2-5
■Wired remote controller (MWR-WE10) [Code No. : DB97-17002B]
Item Descriptions Code-No. Q'TY Remark
Wired remote controller DB93-11251B 1
Optional
Cable tie DB65-10088B 2
Cable clamp DB65-10074E 3
M4×16 Screw 6002-000474 5
User’s manual DB98-32810A 1
Installation guide DB98-32811A 1
2-6 Samsung Electronics
䒲 Central controller (MCM-A202D) [Code No. : DB97-18602B]
Item Descriptions Code-No. Q'TY Remark
Central controller DB93-03425N 1
Optional
Cable tie DB65-10088B 2
Cable clamp DB65-10074E 5
M4 X 16 Screw 6002-000474 7
User’s manual DB98-33437A 1
Installation guide DB98-33434A 1
Samsung Electronics 2-7
䒲 Filter accessory
Item Descriptions Code-No. Q'TY Panel Code Remark
Dust filter
DB63-01694A 1
PC1NUSMAN
Basic/
Water wash
DB63-01695A 1
Dust filter
DB63-02354A 1
PC1NUPMAN
Basic/
Water wash
DB63-02355A 1
Dust filter
DB63-02276A 1
PC1BWSEAN
Basic/
Water wash
DB63-02277A 1
Dust filter DB63-02277A 2 PC1BWPEAN
Basic/
Water wash
2-8 Samsung Electronics
䒲 Front panel
Item Descriptions Code-No. Q'TY Remark
PC1NUSMAN AC036JB1DEC* 1
PC1BWSEAN
AC052JB1DEC*
AC071JB1DEC*
2
PC1NUPMAN AC036JB1DEC* 5
PC1BWPEAN
AC052JB1DEC*
AC071JB1DEC*
7
Samsung Electronics 3-1
QNecessary Tools
3. Disassembly and Reassembly
Item Remarks
+Screw Driver
Monkey Spanner
–Screw Driver
Nipper
Electric Motion Driver
L-Wrench
Spanner Torque Wrench
3-2 Samsung Electronics
No Parts Procedure Remark
1 PANEL & FILTER
NORMAL TYPE
(PC1NWSK 1N
PC1NWAK 1N)
1)
Push the push button of grille and open it.
2)
Detach one clip from panel and separate the
grille from panel tilting the grille 45°.
3)
Detach filter from panel.
4)
Detach 3 cover screws.
5)
Unscrew 6 panel fixing screws from indoor
unit.(use +screw driver)
3-1 Indoor unit
䒲 1WAY CASSETTE (AC036JB1DEC Series)
Samsung Electronics 3-3
No Parts Procedure Remark
6)
Press the left and right hook of panel and
detach the panel from the indoor unit.
3-4 Samsung Electronics
No Parts Procedure Remark
2 Control-Box
1)
Unscrew 5 fixing screws of drain pan.
(use +screw driver)
2)
Pull the drain pan and detach it from indoor
unit.
Be careful that your hands don't touch heat
exchanger panel when you detach the drain
pan.
3 ELECTRICAL
EQUIPMENT PART
1)
Unscrew 5 fixing screws of electrical
equipment part and detach the cover.
(use +screw driver)
Samsung Electronics 3-5
No Parts Procedure Remark
ELECTRICAL
EQUIPMENT PART
2)
Detach several connector connected to the
indoor unit PCB.
3)
Detach electrical equipment part from indoor
unit.
4 DRAIN SUB
1)
Press the hook of drain sub and detach it.
3-6 Samsung Electronics
No Parts Procedure Remark
5 HEAT EXCHANGER
1)
Unscrew 1 fixing screws of heat exchanger.
(use +screw driver)
2)
Detach indoor unit sensor from heat
exchanger.
3) Detach heat exchanger from indoor unit.
6 CROSS PAN
1)
Unscrew 3 fixing screws of cover fan motor.
(use +screw driver)
2) Detach cover fan motor from indoor unit.
Samsung Electronics 3-7
No Parts Procedure Remark
6 CROSS PAN
3)
Detach cross fan from indoor unit.
7 DRAIN PUMP
1) Unscrew 1 fixing screws of cover drain pump.
(use +screw driver)
2) Detach drain hose from drain pump.
3) Detach drain pump from indoor unit.
8 SPI KIT 1) Detach SPI KIT from.
3-8 Samsung Electronics
No Parts Procedure Remark
1 PANEL & FILTER
NORMAL
TYPE(PC1NWSK 1N
PC1NWAK 1N)
1) Push the push button of grille and open it.
2) Detach one clip from panel and separate the
grille from panel tilting the grille 90°.
3) Detach filter from panel.
4) Detach 4 cover screws.
5) Unscrew 7 panel fixing screws from indoor
unit.(use +screw driver)
䒲 1WAY CASSETTE (AC052/71JB1DEC Series)
Samsung Electronics 3-9
No Parts Procedure Remark
6) Press the left and right hook of panel and
detach the panel from the indoor unit.
2 DRAIN PAN 1) Unscrew 6 fixing screws of drain pan.
(use +screw driver)
2) Detach from indoor unit after separating
2 drain pan fixing hook
Be careful that your hands don't touch heat
exchanger panel when you detach the drain
pan.
3 SPI-KIT(option) 1) Detach SPI KIT from indoor unit as as shown
in the figure.
3-10 Samsung Electronics
No Parts Procedure Remark
4 ELECTRICAL
EQUIPMENT PART
1) Detach a cover unscrewing 3 electrical
equipment part fixing screw.
2) Detach several connector connected to
indoor unit PCB.
Samsung Electronics 3-11
No Parts Procedure Remark
ELECTRICAL
EQUIPMENT PART
3) Detach electrical equipment part from
indoor unit.
5 DRAIN PAN 1) Unscrew 2 fixing screws of drain pan.
(use +screw driver)
2) Release band ring and Detach drain hose
from drain pump.
3) Detach drain pump from indoor unit.
3-12 Samsung Electronics
No Parts Procedure Remark
6 DRAIN SUB
1) Unscrew a drain sub fixing screw.
(use +screw driver)
2) Hold hook of drain sub and detach it.
7 HEAT EXCHANGER 1) Unscrew 1 fixing screws of heat exchanger.
(use +screw driver)
2) Detach indoor unit sensor from heat
exchanger.
3) Detach EEV connector from PCB.
Samsung Electronics 3-13
No Parts Procedure Remark
4) Detach heat exchanger from indoor unit.
8 CROSS PAN 1) Unscrew 3 fixing screws of cover fan motor.
(use +screw driver)
2) Unscrew a fixing screw of holder fan.
(use +screw driver)
Assemble to match a side end of holder fan
with a side of cross fan when you
reassemble it.
3-14 Samsung Electronics
No Parts Procedure Remark
3) Detach cover fan motor from indoor unit.
4) Unscrew 1 fixing screws of cross fan.
5) Detach cross fan from indoor unit.
Samsung Electronics 3-15
3-2 Outdoor Unit
䒲 AC036/052JCADEC Series
No Parts Procedure Remark
1 1) Stop the operation of air conditioner and
shut off the main power.
2 Assy Cabi Top 1) loosen 6 pcs screw and detach the Assy
Cabi Top.
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