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Samsung AM14A1E07 Service Manual

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SERVICE
AIR CONDITIONER

ROOM AIR CONDITIONER

INDOOR UNIT
OUTDOOR UNIT
AM14A1(B1)E07
UM14A1(B1)E2
AM20A1(B1)E06
UM20A1(B1)E3
AM20A1(B1)E08
Manual
1. Pre c a u t i o n s
2. Product Specifications
3. Operating Instructions and
I n s t a l l a t i o n
4. Disassembly and Reassembly
5. Tro u b l e s h o o t i n g
6. Exploded Views and Parts List
7. Block Diagrams
8. PCB Diagrams
9. Wiring Diagrams
10. Schematic Diagrams
CONTENTS

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Summary of Contents for Samsung AM14A1E07

  • Page 1: Room Air Conditioner

    ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AM14A1(B1)E07 UM14A1(B1)E2 AM20A1(B1)E06 UM20A1(B1)E3 AM20A1(B1)E08 Manual SERVICE AIR CONDITIONER CONTENTS 1. Pre c a u t i o n s 2. Product Specifications 3. Operating Instructions and I n s t a l l a t i o n 4.
  • Page 2 . Fig. 1-3 No Kids Nearby! 1 0 . Be sure to clean the unit and its surro u n d i n g a re a . Fig. 1-4 Clean the Unit Samsung Electronics...

  • Page 3: Wiring Diagrams

    9. Wiring Diagrams 9-1 Indoor Unit • AM20A1(B1)E08 • AM20A1(B1)E06 • AM14A1(B1)E07 Samsung Electronics...
  • Page 4 9-2 Outdoor Unit • UM20A1(B1)E3 • UM14A1(B1)E2 Samsung Electronics...
  • Page 5 And if you need more information, please see the service bulletin Copyright Tr a d e m a r k s Samsung is a registered trademark and ®œ 1995 by Samsung Electronics Co., Ltd. SyncMaster 17GLi/CMG7387L and All rights reserved. MacMaster...
  • Page 6 8. PCB Diagrams 8-1 Main PCB-INDOOR UNIT 8-1-1 AM14A1(B1)E07 (DB93-10603A) Samsung Electronics...
  • Page 7 PI0.6 SN T 52MM OP01 DE39-60001A WIRE SO COPER PI0.6 SN T 52MM OP02 DE39-60001A WIRE SO COPER PI0.6 SN T 52MM OP03 DE39-60001A WIRE SO COPER PI0.6 SN T 52MM OP04 DE39-60001A WIRE SO COPER PI0.6 SN T 52MM Samsung Electronics...
  • Page 8 PCB Diagrams 8-1-2 AM20A1(B1) E08(DB93-00072A) Samsung Electronics...
  • Page 9 TB71 DE59-30001A CONNECTOR-TERMINAL 250TAP, 1PIN RY71 3501-001058 RELAY DI1U DC12V J1~J29,HR01,03,LR01 DE39-60001A WIRE SO COPER PI0.6 SN T 52MM C701 C-MYLAR 224K C702 C-MYLAR 104K R904~906 R-CARBON RD 1/2T(S) 621-J CM71 CONNECTOR WAFER YW396-03AV(BLK) RY72 3501-000399 RELAY JQ1a-12V Samsung Electronics...
  • Page 10 PCB Diagrams 8-1-3 AM20A1(B1)E06 (DB93-10628A) Samsung Electronics...
  • Page 11 CONNECTOR WAFER SMW250-09 WHT TB71, 72 DE59-30001A TERMINAL 250TAB, 1PIN RY71 3501-001058 POWER RELAY DI1U OPR1 R-METAL 3.32K-F, V8W 2004-000696 OPR2 R-METAL 28.7K-F, 1/8W 2004-000666 OPR4 2004-000284 R-METAL 12K-F, 1/8W OPR5 R-METAL 18K-F, 1/8W DE39 WIRE SO COPPER Samsung Electronics...
  • Page 12 8-2 PCB OUTDOOR UNIT 8-2-1 • UM14A1(B1)E2(DB93-10618A) • UM20A1(B1)E3(DB93-10617A) Samsung Electronics...
  • Page 13 DE60-10100A SCREW-TAPPING PH 3 L6 AB FEFZY “ DE13-20008A IV-VOLT REGU KA7812 IC02 DE13-20016A IC-VOLT REGU KA7805 F701 DE32-10037A FUSE AC250V 3.15A 20MM “ DB47-40024A FUSE-HOLDER FH51H 7.5A TB71 DE59-30001A TERMINAL TAP YTR-250 OPJ2 DE39-60001A JUMP-WIRE PI0.6SM T52MM Samsung Electronics...
  • Page 14 8-3 ASS’Y DISPLAY & Module 8-3-1 AM14A1E07 / AM20A1E08 • DB93-10560B PART LIST Description CODE-NO Specification Q’TY PCB-DISPLAY DB41-10204B FR-1 T1.6 W20 L170 LED - LAMP 0601-001333 LTL-30EHJ(ORG/GRN) LED - LAMP 0601-001059 SY5511(YEL) LED - LAMP 0601-001060 SM5511(GRN) LED - LAMP...
  • Page 15 CA 0A 50V 102Z DIOD SWITCHING 0401-000005 1N4148 C/W DIS & MODULE DB39-20346A UL1007 AWG#26/9 CASE-CENTER PCB UP DB61-10197A PC, BLUE CASE-CENTER PCB LOW DB63-10494A ABS, BLK SEAL DISPLAY UPP DB72-10245A FOAM-PE, BLK SEAL CASE DISPLAY DB72-10220F 30FOAM-PE 8-10 Samsung Electronics...
  • Page 16 YWLA200-09P 2201-000283 C-CERAMIC CA OA 50V 102Z DB39-20346A C/W DIS & MODULE UL1007 AWG#26/9 DB61-10196A CASE-CENTER PCB PC, BLUE DB63-10500A COVER DISPLAY ABS, BLK DB72-10246A SEAL DISPLAY UPP FOAM-PE, BLK DB72-10250A SEAL CASE DISPLAY 30FOAM-PE PAINT JUMP-WIRE 8-11 Samsung Electronics...

  • Page 17: Block Diagrams

    COMPRESSOR DRIVE FAN SPEED SELECT • STEPPING MOTOR STEPPING MOTOR DRIVE BLADE-H BUZZER DRIVE BUZZER • MOVING SELECT DC 5V DC 12V VOLTAGE REGULATOR ON, OFF TIMER SELECT TEMPERATURE SELECT SLEEP SELECT TIME SETTING AC INPUT POWER TRANSFORMER Samsung Electronics...
  • Page 18 Input Indoor unit Simultaneous Indoor unit controller. room 1 and Room B, and SV-B, SV-C room 2 motor room C sensor sensor Room “B” Input Compressor Compressor delay motor circuit SV-C SV-C sensor driver SV-B SV-B Sensor driver Samsung Electronics...
  • Page 19 6. Exploded Views and Parts List 6-1 Indoor Unit 6-1(a) AM20A1(B1)E08, AM14A1(B1)E07 Samsung Electronics...
  • Page 20 ASS´Y DB93-10603A ASS´Y MAIN PCB ASS´Y DB93-00072A ASS´Y MAIN PCB ASS´Y DB32-10008D ASS´Y-THERMISTOR ASS´Y DB65-00007B ASS´Y TERMINAL BLOCK ASS´Y DB61-10151A CASE-CONTROL ABS(94-5V) DB61-60093A BODY-BUSH HIPS DB94-20030C ASS´Y BACK BODY ASS´Y DB61-40247A HOLDER PIPE HIPS DB70-10618A PLATE HANGER SGCC-M Samsung Electronics...
  • Page 21 Exploded Views and Parts List 6-1(b) AM20A1(B1)E06 Samsung Electronics...
  • Page 22 ASS'Y BEARING ASS’Y DB93-10628A ASS'Y-MAIN PCB ASS’Y DB32-10008D ASS'Y THERMISTOR 103AT DB39-10062V POWER CORD 250V 7A DB61-10178A CASE-CONTROL DB61-60122A BODY BUSH HIPS DB94-20038A ASS'Y BACK BODY HIPS DB61-40247A HOLDER PIPE DB70-10670A PLATE HANGER SGCC-M DB93-30052Q ASS'Y REMOCON ARC-109 Samsung Electronics...
  • Page 23 6-2 Outdoor Unit (UM20A1(B1)E3) 6-2(a) UM20A1(B1)E3 9(9-1~9-5) Samsung Electronics...
  • Page 24 INSUL PARTITION Foam pu + Foam pe COVER-TOP DB63-10011A SECC-P DB95-10065N ASS'Y-COMP 44B092JW1E6 DB95-00016B ASS'Y-COMP 44B102JW1EG GROMMET-ISOLATOR 13-1 DB73-10004A EPDM 13-2 DB60-30028A NUT-WASHER 13-3 DB60-30018A NUT-FLANGE P10.8 COVER-TERMINAL 13-4 DB63-10165B NORYL 13-5 DB47-20002B MRA12037-12007 DB47-20057R MRA12054-12008 ASSY-COND DB96-00057A ASS'Y Samsung Electronics...
  • Page 25 Exploded Views and Parts List 6-2(b) UM14A1(B1)E2 Samsung Electronics...
  • Page 26 ASS'Y-VALVE ASS'Y DB62-40110A PACKED V/V 1/4” DB62-40073B PACKED V/V 3/8” DB93-00085A ASS'Y-CONTROL OUT ASS'Y DB26-10063C POWER-TRANS DC17V DB93-10618A ASS'Y-MAIN-PCB (OUT) 2501-001145 CAPACITOR 30/1.2µF, 450VAC DB96-00051A ASS'Y-CONDENSER ASS'Y DB64-60039B CABI-SIDE SC-90073T DB63-10443C COVER-E-PARTS DB64-60138B CABI-UPPER SC-90073T DB94-00005A PARTITION SBHGI Samsung Electronics...
  • Page 27 LABEL DOOR ART 90 PH-M2 SCREW TAP PH-M2 DB67-60061A SPRING BATTERY SUS 304 DB67-60062A SPRING BATTERY SUS 304 DB67-60063A SPRING BATTERY SUS 304 90 X 250 PE BAG 90 X 250 DB93-40179B ASS’Y PCB REMOCON DB61-40243A HOLDER REMOCON Samsung Electronics...
  • Page 28 ASS'Y MAIN PCB ASS’Y DB09-10149A IC-MCU AMB89635R-466 DB32-10008D THERMISTOR-ASS’Y 103AT DE26-20154A TRANS-POWER AC230V DC17V 300mA 2306-000294 C-FILM CFS 99N 450VAC 155K 3501-001058 POWER-RELAY DI1U DC12V DE32-10037A FUSE 250V 3.15A DB93-10560B ASS’Y PCB DISPLAY AI-GRILLE DB93-10561B ASS’Y PCB DISPLAY BI-GRILLE 6-10 Samsung Electronics...
  • Page 29 Exploded Views and Parts List 6-3-2(b) AM20A1(B1)E06 Parts List Q’TY CODE NO Description Specification Remark AM20A1(B1)E06 DB61-10151A CASE-CONTROL DB93-10628A ASS'Y MAIN PCB ASS'Y DB32-10008D ASS'Y THERMISTOR 103AT 240/240 DB26-10063B TRANSFORMER AC230V/DC17 6-11 Samsung Electronics...

  • Page 30: Troubleshooting

    Indoor unit Room sensor Error (open or short) 3 O P E R ATING and TIMER LED blinking (1Hz) Indoor unit heat exchanger temperature sensor Error (open or short) 4 FAN LEA blinking (1Hz) Indoor fan malfunctioning (for spead is Below 38Orpm) Samsung Electronics...

  • Page 31: Fault Diagnosis By Symptom

    Check PCB pattern. Replace ICO2 Replace main PCB. 10ms Is voltage output terminal of D101~D105(IN4007) normal? Are voltage at #30 and #31 of the micom normal? Replace resonator (X501) 100ns Replace IN4007 Is operation normal? Replace micom Samsung Electronics...
  • Page 32 Is the voltage at both ends of the C102 Replace the C102 electrolytic condenser in the range of DC16~DC25V? and C104. Is the voltage at both ends of the C104 electrolytic condenser DC12V? Is the IC01(KA7812) normal? Replace the IC01 Samsung Electronics...
  • Page 33 Is the supply voltage of the fan out of order. be replaced. motor sufficient? Test rod location Normal voltage PCB CN73 Condition Fan operate AC 180V MF-C is out of order Replace MFC Fan motor Fan motor should be replaced. is out of order. Samsung Electronics...
  • Page 34 “A”Compreessor or outdoor fan-motor replaced 1 NO 2 NO Is the room sensor normal register? 10°C 20°C 30°C 17.96k Ω 12.09k Ω 8.3k Ω YES 3 B Room or C Room operating Proceed to the checking points for the outdoor unit. Samsung Electronics...
  • Page 35 Are the Q902, Q903 and Q905 in "Turn-on" condition? Does the operation of the Q701 lead to Check and replace the Q701 and relay. activation of the compressor relay (RY71)? (Resistance at both ends of the relay: About 150 ) Replace the "B" compressor. Samsung Electronics...
  • Page 36 Does operation start when swing button of the remote con- Normal trol unit pushed? Voltage at pin #33-#36 of micom (ICO4) Micom (IC04) is faulty. change?(Squarewave) Volatge at pin #10, #11, #12, #13 of IC05 (KID65003) Driver IC05 (KID65003) is faulty. change?(Squarewave) UP/DOWN louver motor is faulty. Samsung Electronics...

  • Page 37: If Operation By Remote Control Unit Is Impossible. (Initial Diagnosis)

    Voltage at PIN #30 of Remocon Micom change? Voltage at collecter of Q601 or Q602 change? Q601(C4375Y) or Q602(C1623Y) is faulty. IR LED(CL-1L5EU) is faulty. Voltage at pin #26 of micom (IC04) change (INDOOR UNIT)? Receiver module is faulty. Micom (IC04) is faulty. Samsung Electronics...
  • Page 38 IC04 DC7V? resistance (R922, R924). Does the operation of the Q702 lead to Check and replace the Q702 and relay. activation of the SV-BY relay (RY72)? (Resistance at both ends of the relay: 400Ω ) Replace the SV-BY Samsung Electronics...
  • Page 39 Does the turning on and then Check and replace the Q702 and relay. turning off of the Q702 lead to (Resistance at both ends of the relay: 400Ω) turning off of the SV-BY relay (RY72)? Replace the SV-BY solenoid. 5-10 Samsung Electronics...
  • Page 40 Q908 under "turn off" condition? Check and replace the D905, D909, and Q703 relay Is the Q703 turned. on, indicating the (Coil resistance at both ends of the relay:about 400Ω) operating of the SV-B relay (RY73)? Replace the SV-B solenoid valve 5-11 Samsung Electronics...
  • Page 41 Is the Q704 turned on, indicating the operating condition Check and replace the D906, D910, and Q704 relay of the SV-C relay (RY74)? (Coil resistance at both ends of the relay : about 400Ω) Replace the SV-C solenoid valve 5-12 Samsung Electronics...
  • Page 42 • Check and replace the Q703, and Q704. turned off when the Q703 and Q704 are • Check and replace the relay when necessary. turned off. (Resistance at both ends of the relay: About 400Ω) Replace the SV-B and SV-C solenoids. 5-13 Samsung Electronics...

  • Page 43: Pcb Inspection

    The parts should be replaced in the following pro c e d u re . Check for any faulty part. Detach the faulty part. Replace it with a new part. Check the operation of the new part. The repair is completed. 5-14 Samsung Electronics...
  • Page 44 1. Indoor unit fan motor is faulty. RMC switch pushed. above 180V~ 1. [FAN] mode 2. Fan speed [Hi] 2. Indoor unit fan motor does not operate. 2. Poor connection of indoor fan motor 3. Continuously operation and connector of RPM sensing (CN43) 5-15 Samsung Electronics...

  • Page 45: Fault Diagnosis Of Major Parts

    ∞, O Ω … open or short Abnormal Measure resistance between red wire and each terminal. Stepping Motor Normal Approx. 380Ω at ambient temperature (20°C ~30°C) (UP/DOWN swing motor) ∞, O Ω … open or short Abnormal 5-16 Samsung Electronics...

  • Page 46: Disassembly And Reassembly

    7) Pull the upper left and right of discharge softly for the outside cover to be pulled out. 8) Pull softly the lower part of discharge and push it Caution: Assemble the front panel and fix the hooks of left and right. Samsung Electronics...
  • Page 47 2) Take all the connector of PCB upper side out. 3) Separate the outdoor unit connection wire from the terminal block. 4) If pulling the Main PCB up, it will be taken out. (Separate the TRANS hook, it before). Samsung Electronics...
  • Page 48 2) Loosen the fixing two screws and separate the motor holder. 3) Loosen the fixing screw of motor fan. (By use of M3 wrench) Separate the motor from the fan. Separate the fan motor the left holder bearing. Samsung Electronics...

  • Page 49: Outdoor Unit

    <UM20A1(B1)E3> <UM14A1(B1)E2> 1) Do Procedure above. Fan Motor & Propeller Fan 2) Remove the nut flange. (Turn to the right to remove as it is a left turned screw) 3) Disassemble the propeller fan. <UM20A1(B1)E3> Samsung Electronics...

  • Page 50: Operating Instructions

    Without regard to ON/OFF condition in remote controller, use this button to set current time. TIME Adjust the current time using button. (Data can be transmitted after setting up the time) Samsung Electronics...
  • Page 51 6. FAN SPEED : Manual (3 step), Auto (4 step) * P rotective function : Low temperature Fan speed automatically varies depending release. (Prevention against fre e z e ) on both the diff e rence between setting and the room temperature . Samsung Electronics...
  • Page 52 The LCD also displays the time re m a i n i n g . select, the compulsory operation mode, buzzer is sounded "beep" 1 0 . 24-Hour ON/OFF Real Setting Ti m e r. : The air conditioner is turned ON at a specified time using ON TIMER Samsung Electronics...
  • Page 53 (About when the indoor unit room "C" is turned 2 minutes + 3 0 seconds). o n . •Both of the SV-B and SV-C solenoid valves operate when all of the indoor unit room B Samsung Electronics...
  • Page 54 Outdoor unit power supply Delay of 3 minutes Indoor unit room "B" Delay of 3 minutes Indoor unit room "C" About 2 minutes About 2 minutes Compressor Outdoor fan motor SV-BY SV-B (room"B" soldnoid valve) SV-C (room"C" soldnoid valve) Samsung Electronics...
  • Page 55 It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areas near machines), salty areas such as coast areas, areas where sulfuric gas is present such as hot spring areas. Contact your dealer for advice. Samsung Electronics...

  • Page 56: Installation Diagram Of Indoor Unit And Outdoor Unit

    B Drain hose installation Cut the piping hole sloped slightly Remote control holder Remote control Outdoor unit check point UNIT-A UNIT-B UNIT-C Piping (Liquid) 1/4” Clamper tube Piping (Gas) 3/8” Installation plate Installation tube Pipe-connection Vinyl tape Screw Putty Drain hose Samsung Electronics...
  • Page 57 Result : All inert gas escapes from the indoor unit. • To prevent dirt or foreign objects from getting into the pipes during installation, do NOT remove the caps completely until you are ready to connect the piping. Samsung Electronics...
  • Page 58 4. Pass the drain hose through the hole in the wall, making sure that it is sloping downwards, as shown in the illustrations above. The hose will be fixed permanently into position once Shield the whole installation has been tested for gas leaks; refer to page 16 for further details. Drain hose Extension drain hose Samsung Electronics...
  • Page 59 Outdoor Unit AM20A1(B1)E08 UM20A1(B1)E3 Terminal Block AM20A1(B1)E06 Earth Earth terminal terminal Circuit Breaker (Main Power cable) Earth Earth Earth terminal terminal Assembly terminal cable Earth Earth Earth terminal terminal terminal Indoor unit A-unit B-unit C-unit AM20A1(B1)E08 AM20A1(B1)E06 AM20A1(B1)E06 3-10 Samsung Electronics...
  • Page 60 100 ohms (existing grounding electrode) 2 . Use of a grounding electro d e . Grounding screw hole • Specifications of grounding electro d e . Carbon plastic Steel core PVC-insulated wire(2mm x3.5m), green Terminal, M4 3-11 Samsung Electronics...
  • Page 61 C a u t i o n : Burrs not removed may result in leakage of gas. 90° Oblique Raughness Burr Pipe Reamer 3 ) Insert a flare nut into the pipe and modifty flare . Outer diameter A(mm) ø6.35mm ø9.52mm * Unproper flaring Inclined Surface Cracked Uneven damaged thickness 3-12 Samsung Electronics...
  • Page 62 18N . m with a torque wrench. 7. Check for gas leakage. - At this time, especially check for gas leakage from the 3-way valve’s stem nuts, and from the service port cap. 3-13 Samsung Electronics...
  • Page 63 5. Stop operation of the air conditioner. 6. Disconnect the charge hose of manifold gauge. 7. Close the cap of each valve. INDOOR A-UNIT INDOOR B-UNIT 3-2-2(i) Flare unt fixing torque Torque (kg-cm) Outter diameter Fixing Torque Final Torque ø6.35(Liquid Side) ø9.52(Gas Side) 3-14 Samsung Electronics...
  • Page 64 7. Move the indoor and outdoor units to a new plug to avoid foreign material entering. l o c a t i o n . 8. Remove the mounting plate for the indoor unit and move it to a new location. 3-15 Samsung Electronics...
  • Page 65 Vo l t a g e / F requency : 240V/50Hz Cooling Capacity & Air Outlet Temperature Cooling Capacity Air Outlet Temp. 10000 9000 8000 7000 21/15 27/19 35/24 43/26 Outdoor Temperature(DB/WB) Current & Low Pressure Current Low Pressure 21/15 27/19 35/24 43/26 Outdoor Temperature(DB/WB) 3-16 Samsung Electronics...
  • Page 66 Cooling Capacity & Air Outlet Temperature Cooling Capacity Air Outlet Temp. 10000 9000 8000 7000 21/15 43/26 35/24 Outdoor Temperature(DB/WB) Cooling Capacity & Low Pressure Cooling Capacity Low Pressure 10000 9000 8000 7000 21/15 35/24 43/26 Outdoor Temperature(DB/WB) 3-17 Samsung Electronics...

  • Page 67: Product Specifications

    MRA12030-12008 MRA12037-12007 MRA12054-12008 Standard Conditions ISO R5151 Standard ISO R5151 Standard • The basic performance test is based on the piping of 5MT.(Be sure to check the installing conditions as extension of the piping may lead to performance degradetion.) Samsung Electronics...
  • Page 68 2-2 Dimensions 2-2-1(a) Indoor Unit (AM14A1(B1)E07/AM20A1(B1)E08) (Remote control) (Front view) Air out Installation plate (Rear view) 2-2-1(b) Indoor Unit (AM20A1(B1)E06) (Remote control) (Front view) (Rear view) Samsung Electronics...
  • Page 69 Product Specifications 2-2-2 Outdoor Unit 2-2-2(a) UM20A1(B1)E3 (Rear view) (Front view) 2-2-2(b) UM14A1(B1)E2 (Front view) (Rear view) Samsung Electronics...

  • Page 70: Refrigerating Cycle Block Diagram

    Piping Temp.(°C) Temp. Condition (°C) Operating Condition (kg/cm Indoor Outdoor 3-way valve Standard 5.0~5.2 A or B Max over load 6.0~6.3 Cooling Low temp. 3.4~3.6 Standard 5.0~5.2 A + B Max over load 6.0~6.3 Low temp. 3.4~3.6 (Pipe Length:5m) Samsung Electronics...
  • Page 71 Product Specifications 2-3-2(b) UM20A1(B1)E3 Samsung Electronics...
  • Page 72 10. Schematic Diagrams 10-1 Indoor Unit 10-1-1 AM14A1(B1)E07 10-1 Samsung Electronics...
  • Page 73 10-1-2 AM20A1(B1)E06 10-2 Samsung Electronics...
  • Page 74 10-2 Outdoor Unit 10-2-1 UM20A1(B1)E3, UM14A1(B1)E2 10-3 Samsung Electronics...

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