Toshiba AW-G9930S Service Manual

– 17 –(3) Electrical part failure diagnosis (check with inspection mode)No. PART Failure diagnosis method1 MotorWater intake valveDrain valve motor2 Drain valve motor(Wind signal)3 Revolution sensor4 Water level sensor5 Lid switchInspection mode1~5*: It should be each rated voltage.::::Check voltage at locations to betested under standby status.Do they show 220 V*?YesWith machine operated, check voltages atlocations to be tested.Do they change from AC 220 V*→0 V?ChangeNo Associated electrical parts may befailure, or lead unit connectordisconnected or breakdown.No change Program timer failureInner lock of motor and drain valveetc. or lock of drive assembly.Inspection mode6*: It should be each rated voltage.::::Check voltage accross CN1 blackand CN3 red under standby status.Does it show AC 220 V*?YesCheck above voltage after wind-upcompletion.Does it change from AC 220 V* to 0 V?ChangeNo Drain valve motor internal leadbreakdown, or lead unit connectordisconnected, or leads breakdown.No change Drain valve motor failureProgram timer failureInspection mode7Inspection mode8::: ::Do all water level indicators turn offwith no water filled on tub?All turn offDoes water level indicator show a levelwith water filled on the tub?(For water level indication and waterlevel, refer to below)Indication is apt to lowEither one of themturns on Is 3P connectors ofwater level sensordisconnected?Disconnected ConnectIndication isapt to high Water level sensorpart failure or programtimer failure.ConnectedNo abnormalityCheck air tube disengaged, brokendown, folded, foreign matterclogged, water inversion onto airtrap, etc.::Inspection mode9:::YesNo Program timer failure:Check voltage across CN6 pinkand CN6 light green.Does it show DC 5 V?Rotates pulsator with hand and check voltageacross CN1 black and CN4 light green.Does it change from DC 5 V ← → 0 V or vice versa?ChangeNo changeSensor case assembly or lead unitconnector disconnected, leadbreakdown.:::YesNo Program timer failure:No changeChangeCheck voltage across CN6 pinkand CN6 blue.Does it show DC 5 V?Does voltage across CN6 pink and CN6 blue changefrom DC 5 V to 0 V when the lid is opened or closed?Lid switch, or lead unit connectordisconnected, breakdown.Water level indication vs. water levelWater level heightWater level 220 V51 L approx. 353 mm41 L approx. 298 mm32 L approx. 228 mm19 L approx. 138 mm10 L approx. 73 mmAll manuals and user guides at all-guides.com