Related Manuals for Samsung 4qt12whwe
Summary of Contents for Samsung 4qt12whwe
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Page 1: Table Of Contents
ROOM AIR CONDITIONER INDOOR UNIT OUTDOOR UNIT AQT12WHWE UQT12WHWE AQT12WHWB UQT12WHWB SERVICE Manual AIR CONDITIONER CONTENTS 1. Product Specifications 2. Disassembly and Reassembly 3. Refrigerating Cycle Diagram 4. Set Up Model Option 5. Troubleshooting 6. Exploded Views and Parts List 7. -
Page 2: Product Specifications
2ROW 14STEP 2ROW 24STEP 2ROW 14STEP 2ROW 24STEP Refrigerant Control Unit CAPILLARY TUBE CAPILLARY TUBE Freezer Oil Capacity — — Refrigerant to Charge(R22) Protection Device(OLP) RBC12107-12500 RBC12050-12500 Cooling Test Condition INDOOR UNIT：DB27˚C WB19˚C OUTDOOR UNIT：DB35˚C WB24˚C Maximum Operation Condition INDOOR UNIT：DB32˚C WB23˚C OUTDOOR UNIT：DB43˚C WB26˚C Samsung Electronics... -
Page 3: Disassembly And Reassembly
2) Open the Front Grille by pulling right and left sides of the hook. 3) Loosen 1 of the right screw and detach the Terminal Cover. 4) Detach the thermistor from the Front Grille. 5) Loosen 2 fixing screws of Front Grille. Samsung Electronics... - Page 4 1) Take all the connector of PCB upper side (Main PCB) out. (Inclusion Power Cord) 2) Detach the outdoor unit connection wire from the Terminal Block. 3) Loosen 4 fixing screws of Ass'y Control-In. Tray Drain 1) Pull Tray Drain out from the Back Body. Samsung Electronics...
- Page 5 1) Loosen the fixing screw and detach the Fan Motor & Motor Holder. Cross Fan 2) Detach the Fan Motor from the Fan. 3) Detach the Fan From the left Holder Bearing. Samsung Electronics...
- Page 6 Cabinet-Side edge and a fixing screw on the Cabinet-Front lower to detach the Cabinet-Front. 2) Loosen 2 fixing screws of the Ass'y-Control. 3) Loosen 6 fixing screws of the Cabinet-Side 4) Loosen 2 fixing screws of the Cabinet-Side Samsung Electronics...
- Page 7 3) Disassemble the pipe in both inlet and outlet of the Compressor with welding torch. 4) Disassemble the pipe in both inlet and outlet of the Condenser with welding torch. 5) Loosen the 3 bolts at the bottom. 6) Detach the Compressor. Samsung Electronics...
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Page 8: Refrigerating Cycle Diagram
3-1 Refrigerating Cycle Diagram Outdoor Unit Indoor Unit Note Capillary tube Check valve 2-Way valve Liquid side Capillary tube Heat Heat Exchanger Exchanger (Evaporator) (Evaporator) Gas side 3-Way valve 4-Way valve Cooling Heating Compressor Gas Leak Check Polnt Samsung Electronics... -
Page 9: Set Up The Model Option
Every time you push the button, the display panel reads . . . repeatedly. Setting Option SEG4. Push the button to set the display panel to Every time you push the button, the display panel reads . . . repeatedly. Samsung Electronics... - Page 10 Every time you push the button, the display panel reads . . . repeatedly. Setting Option SEG10. Push the button to set the display panel to Every time you push the button, the display panel reads . . . repeatedly. Samsung Electronics...
- Page 11 If all lamps of indoor unit are flickering, Plug out, plug in power plug again and press ON/OFF key to retry. If the unit is not working properly or all lamps are continuously flickering after setting the option code, see if the correct option code is set up for its model. Samsung Electronics...
- Page 12 4-2 Table of the option Code Option Code Model SEG1 SEG2 SEG3 SEG4 SEG5 SEG6 SEG7 SEG8 SEG9 SEG10 AQT12WHWB AQT12WHWE Samsung Electronics...
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Page 13: Troubleshooting
The compressor stops intermittently or the fan speed of the The compressor stops intermittently in a COOL mode or indoor unit decreases to prevent inside/outside air frozen DRY mode, and fan speed of the indoor unit decreases. depending on the inside/outside air temperature. Samsung Electronics... - Page 14 Problem with the outdoor unit or PCB outdoor unit remote control. • In 3 minutes, check the voltage No power source Problem with the relay (RY71) or PCB between the indoor unit terminal displayed. block N(1) and 1. Samsung Electronics...
- Page 15 Check whether the fuse on the Replace fuse control board is normal. F701: 3.15[A]/250[V] Check the output of SMPS on the control board. Input power: AC230±15%[V] Replace the control board IC02 Input: DC 12[V] IC02 output: DC 5[V] Check the setting temperature Samsung Electronics...
- Page 16 Test rod location Normal Voltage PCB CN72 Condition About AC pin #3 and #5 Fan operate 180V Replace Motor Motor Fan-Capacitor is out of order Fan-Capacitor Fan motor Fan motor is out of order. should be replaced. Samsung Electronics...
- Page 17 Is rating voltage ±10% range applied relay between Power relay is Power relay should be Terminal block No. N(1) and No. 1 out of order replaced. Outdoor unit is out of order. Is the room sensor normal register? 10°C 20°C 30°C 17.96kΩ 12.09kΩ 8.3kΩ Samsung Electronics...
- Page 18 Voltage at pin #57~#60 Micom (IC04) is faulty. of micom (IC04) change? (Squarewave) Voltage at pin #16 of IC06(ULN2003A) and #10~#12 of Driver IC06/08 (ULN2003A) is faulty. IC08(ULN2003A) change? (Squarewave) UP/DOWN louver motor is faulty. Samsung Electronics...
- Page 19 Is the voltage between Abnormal IC05 CN71 #1 and CN71 #5 rating voltage ±10% range Abnormal 4-Way valve of Outdoor Unit. Abnormal RY73 or connecting Cable PCB should be replaced. 4-Way valve should be replaced or connecting Cable Check. Samsung Electronics...
- Page 20 SENSOR Resistance Value : 40˚C-5.83kΩ Connect the sensor to CN43, supply power, and measure the voltage of #1 and #2 of the CN43 connector. Poor ASS'Y PCB Replace Below 0.5V? Poor ASS'Y PCB Replace Over 4.9V? MICOM Error or Connector(CN43) check Samsung Electronics...
- Page 21 When the voltage descends below 3V, the assembly module PCB is normal and the main PCB is poor. Then replace the main PCB. 3. Replace the assembly display PCB because the module PCB is poor if the voltage between No. 2~3 of CN91 maintains 5V after the remote control starts operation. Samsung Electronics...
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Page 22: Pcb Inspection Method
2) The fan motor of the indoor unit doesn't run. • Fan Motor Connector(CN72) is faulty 3) The power voltage between terminal #3 and #5 • ASS'Y Main PCB is faulty • Connection is faulty of the connector(CN72) is 0V. Samsung Electronics... - Page 23 32.430 3.537 6.941 14.680 33.890 3.652 7.192 15.280 35.430 3.772 7.455 15.900 37.050 3.897 7.729 16.550 38.760 4.026 8.015 17.240 40.560 4.161 8.313 17.960 Temperature Sensor Characteristic Curve Temperature (˚C) At the temperature of 25˚C(10KΩ) Resistance Value (Kohm) Samsung Electronics...
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Page 24: Main Part Inspection Method
∞, 0Ω . . . Open or Short Abnormal Stepping Motor Measure the resistance between the red wire and each terminal wire with a tester. Normal About 300Ω at the normal temperature (20˚C ~ 30˚C) ∞, 0Ω . . . Open or Short Abnormal Samsung Electronics... -
Page 25: Exploded Views And Parts List
6. Exploded Views and Parts List 6-1 Indoor Unit 3-8-1 You can search for the updated part code number through the ITSELF. URL : http://itself.sec.samsung.co.kr Samsung Electronics... - Page 26 DB93-02481Q ASS'Y-CONTROL IN ASS'Y DB93-02483N ASS'Y-CONTROL IN ASS'Y DB92-00536B ASS'Y-PANEL FRONT ASS'Y DB64-00989A PANEL-FRONT DB64-00990A GRILLE-AIR INLET HIPS DB97-02064A ASS'Y-COVER DISPLAY ASS'Y DB63-00846B GUARD-AIR FILTER DB70-00406A PLATE-HANGER SGCC-M T0.6x320x650 DB61-01638A HOLDER-PIPE DB63-00844A COVER TERMINAL ABS-V0 DB93-02532B ASS'Y-REMOCON REMOCON Samsung Electronics...
- Page 27 6-2 Outdoor Unit 17-1 17-2 17-5 17-3 17-4 17-6 17-7 17-9 17-8 19-4 19-3 17-10 19-2 19-1 Samsung Electronics...
- Page 28 GASKET 19-3 DB63-00762A COVER -TERMINAL 19-4 6021-001142 NUT FLANGE DB96-03855A ASSY CHECK VALVE ASSY — DB96-03965A ASSY CHECK VALVE ASSY — DB99-00563A ASSY 4WAY VALVE ASSY — DB99-00563B ASSY 4WAY VALVE ASSY — — BAR STEEL — — Samsung Electronics...
- Page 29 TH M4xL16 SCREW-MACHINE TH M4xL10 DB39-00949A CONNECTOR WIRE S/W & MODULE & DISPLAY DB39-00147A CONNECTOR WIRE STEP MOTOR UP/DOWN DB32-00020D ASS'Y THERMISTOR WIRE 4P(103AT) DB63-00851A COVER CLAMP HIPS DB93-01549G POWER CORD(SAUDI) POWER CORD(MEXICO) DB39-01071A POWER CORD(MIDDLE EAST) DB93-01549F Samsung Electronics...
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Page 30: Block Diagram
• STEPPING MOTOR DRIVE (H/M/L) PART • BUZZER DRIVE • FUNCTION DRIVE* BLADE-H STEPPING MOTOR MOVING SELECT -Blade -Auto grille* ON, OFF TIMER SELECT DC 5V TEMPERATURE SELECT VOLTAGE REGULATOR SLEEP SELECT DC 12V SMPS Power Block FUNCTION* SELECT AC INPUT Samsung Electronics... -
Page 31: Wiring Diagram
8. Wiring Diagram 8-1 Indoor Unit Code No : DB98-15139A This Document can not be used without Samsung's authorization. Samsung Electronics... - Page 32 8-2 Outdoor Unit MOTOR CAPACITOR FAN MOTOR COMP CAPACITOR O.L.P OVER LOAD PROTECTOR Code No : DB98-15607A This Document can not be used without Samsung's authorization. Samsung Electronics...
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Page 33: Schematic Diagram
9. Schematic Diagram 9-1 Indoor Unit This Document can not be used without Samsung's authorization. Samsung Electronics... -
Page 34: Samsung Electronics
ELECTRONICS © Samsung Electronics Co., Ltd. Nov. 2004. This Service Manual is a property of Samsung Electronics Co., Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No. DB98-21572A(1)