Samsung DW80H9940US/AA, Service Manual

Page 1: ...940US DW80H9930US Model Code DW80H9970US AA DW80H9970US AC DW80H9950US AA DW80H9950US AC DW80H9940US AA DW80H9940US AC DW80H9930US AA DW80H9930US AC 1 Safety Instructions 2 HDWXUHV DQG 6SHFL FDWLRQV 3 Disassembly and Reassembly 4 Troubleshooting 5 PCB Diagram 6 Wiring Diagram 7 Reference ...

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Page 45: ...I WKH VFUHZV DQG QXWV DUH IDVWHQHG FRUUHFWO KHFN ZKHWKHU WKH DUH IDVWHQHG ZLWK WKH VSHFL HG WRUTXH 5 Remove foreign material KHFN ZKHWKHU DQ IRUHLJQ PDWHULDO VXFK DV VRLO ZLUH VFUDSV DQG VFUHZV DUH LQ WKH GLVKZDVKHU KHFN ZKHWKHU DQ IRUHLJQ PDWHULDO LV HQWHULQJ WKURXJK WKH VXPS LQWR WKH GLVSRVHU 6 Check for water leakage KHFN ZKHWKHU WKHUH LV ZDWHU OHDNDJH IURP WKH KRVH FRQQHFWRU GRRU FDVH VXPS GUD...

Page 46: ...rder PE When the location is not detected for 2 minutes after the synchronous motor operation In Test Mode when the location is not detected for 1 minute In the cleaning section when the location is not detected for 3 minutes Draining 20 seconds on 5 seconds off is performed for 3 minutes The synchronous motor is out of order The location in the cam is incorrect tE When the temperature sensor data...

Page 47: ...nds off is performed for 3 minutes the drain pump is turned off If data over 3V is detected draining is performed for 3 minutes and then the sensed data is checked again There is a water leak OE KHQ WKH RYHUÀRZ VHQVRU GDWD LV HTXDO WR RU OHVV WKDQ 9 for 5 seconds If sensor data over 3V is detected after draining 20 seconds on 5 seconds off is performed for 3 minutes the drain pump is turned off If...

Page 48: ...ion pump is out of order The Main PBA is out of order The Inverter PBA is out of order 4E5 When the number of detected water supply pulses are 200 at the Non water supply mode Repeats water valve on 1seconds off 1seconds 2 times Draining 20 seconds on 5 seconds off is performed for 3 minutes and then 200pulse over again detected repeat Draining The water valve is out of order 9E1 If blackout or DC...

Page 49: ...PDWLFDOO DQG D dE error occurs Displaying all LVSOD I WKH SURGXFW HQWHUV 7HVW 0RGH DOO SURGXFW GLVSOD V DUH WXUQHG RQ IRU VHFRQG I QR NH LV SUHVVHG WKH YHUVLRQ LV GLVSOD HG Displaying the program version 9HUVLRQ HIDXOW LV WR LVSOD WKH 0DLQ 9HUVLRQ 9HUVLRQ H LV SUHVVHG WKH FRUUHVSRQGLQJ LQIRUPDWLRQ LV GLVSOD HG 1RUPDO 6XE 9HUVLRQ HDY H 0RGHO 2SWLRQ HOLFDWHV H QYHUWHU 6 9HUVLRQ 4XLFN H 68 7RXFK 6 9H...

Page 50: ...function Error The circulation motor runs BLDC 2600 RPM RPM display after operation circulation motor Each time press the Normal key it is possible to change the rpm 1200 3400rpm Each time press the Heavy key it is possible to change position of distributer 1 Middle Upper 2 Lower Right 3 Lower All 4 Lower Left n6 LVWULEXWRU 0RWRU Distributor function Error The circulation motor runs BLDC 3400 RPM ...

Page 51: ...ctuator Heavy LED Off 2 Booster left Key Booster left LED On Drain pump Auto LED Circulation Motor low BLDC motor Normal LED Circulation Motor low BLDC motor Heavy LED Off Circulation Pump Runs Max 3 seconds to prevent damage c pump 3 Booster Right Key Booster Right LED On Distributer motor Auto LED Valve water Normal LED Heater Max operating 2seconds Heavy LED Vane CW Delicate LED Vane CCW Expres...

Page 52: ...the coil in Water Valve is conductive Remove the connector before measuring 1RUPDO SSUR ȍ ȍa ȍ Faulty Replace the Water Valve 6 Check whether the water supply stops after water is supplied for 20 seconds Faulty Replace the Water Valve and Flow Meter 7 Check whether the water supply stops after water is supplied for 80seconds or 5 minutes Check the water supply pressure 0 5bar Faulty Replace the Wa...

Page 53: ...4 2 Check the operating LED red of the inverter PBA Normal Fully turn on while operating Faulty Replace the Inverter PBA assy 4 3 Check the operating voltage between 1 and 2 of the Inverter PBA CN8 connector at LA in test mode Normal 50V 90V while operating How to do LA in test mode Push Booster left key Booster right key Power key at the same time Push the Linear Auto key OO HG LVSOD ĺ 9HUVLRQ LV...

Page 54: ... of the Inverter PBA 4 1 Check the operating AC voltage of the Inverter PBA CN5 connector Normal 110V 120V while operating Faulty Replace the Main PBA assy 4 2 Check the operating LED red of the inverter PBA Normal Fully turn on while operating Faulty Replace the Inverter PBA assy 4 3 Check the operating voltage between 1 and 2 of the Inverter PBA CN6 connector at L3 Lc in test mode Normal 50V 90V...

Page 55: ...he voltage between the Red wire of the Heater Relay on the base and the Black wire of the CN101 connector Normal 110 120V while operating Reconnect the Heater Relay connectors 4 Check the driving signals for the Heater Relay Measure the voltage between pin 1 D12 Anode side of the Main PBA RY201 relay and pin 2 of the CN402 connector When the Heater is off 10 5 to 13V When the Heater is operating 0...

Page 56: ...olet wire Micro switch On Short Micro switch Off Open Micro Switch sign alters in ON OFF state It is NG if keep in ON or OFF state for 120 seconds Do not supply with water and test Faulty Replace the Micro Switch for sensing positions Normal Replace the valve distributor and CAM switch 4 Adjust Cam A ssy and Find the faulty Faulty Replace Cam A ssy 5 Check whether half load is operating normally C...

Page 57: ...k the conduction between the Brown wire and the Black wire Sensor On 0V Sensor Off 5V Faulty Replace the Sensor vane for sensing positions Normal Replace the Motor vane and Sensor vane 4 Adjust Motion A ssy and Find the faulty Faulty Replace Motion A ssy 5 Check whether Motor vane is operating normally Check the Motor vane operation Normal 110 120V Check the operation of Motor vane Relay CCW Check...

Page 58: ...Water Valve replace it UURU RFFXUUHQFH DIWHU FRQ UP 0HWKRG Assy Case Brake replace Thermistor Error tE 1 Check the connections for the Thermistor connector Reconnect the Thermistor connector 2 Check whether the Thermistor is operating normally Measure the voltage between both ends of the Thermistor Normal 0 05 to 4 95V Measure the resistance between both ends of the Thermistor Remove the connector...

Page 59: ...A Motor BLDC error 1E 1 Check the connections for the Pump BLDC connectors Reconnect the Pump BLDC connectors UURU RFFXUUHQFH DIWHU FRQ UP 0HWKRG DXOW OHDQ WKH NLQGV RI OWHU LQH RDUVH 0LFUR 3 Do it to act Test service test mode L2 L3 and motor water VRXQG FRQ UPDWLRQ LQ Faulty Replace motor 4 Problem occurrence to Method 1 2 3 Faulty Replace Main PBA BLDC Motor Communication error AE6 1 Check the ...

Page 60: ...rts and Reconnect the Sub PBA and Main PBA connectors 7 Check whether there is condensation on the PBA CN103 of Display Control Module connector CON100 TOUCH Module connector Normal No condensation Faulty Remove any condensation and moisture Normal Replace the Control Panel assy 8 Check whether the fuse is broken Replace the fuse 15A 9 Check the DC voltage of the Main PBA See Main PBA DC voltage e...

Page 61: ...ections for the Fan Motor Reconnect the Fan Motor connectors 2 Check the resistance of the Fan Motor coil Remove the connector before measuring 1RUPDO SSUR a ȍ Faulty Replace the Fan Motor assy 3 Check the operation of the Fan Motor Relay Check the operating voltage between the red wire of the CN201 connector and the Black wire of the CN101 connector Normal 110V 120V while operating Faulty Replace...

Page 62: ...k the resistance of the Dispenser Remove the connector before measuring 1RUPDO SSUR a Nȍ Faulty Replace the Dispenser 4 Check the operation of the Dispenser Relay Check the operating voltage between the Black wire of the CN201 connector and the Black wire of the CN101 connector Normal 110V 120V while operating Faulty Replace the Main PBA assy No washing None KHFN WKH OWHU DXOW 5HSODFH OWHU 2 Check...

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