Electrolux EWX11831 - Page 4

Technical Support - MDM 4/104 599 77 39-16 Rev. 00
11.2
Display board ................................................................................................................................... 42
11.3 Drainage pump ................................................................................................................................. 43
11.3.1 General characteristics .............................................................................................................. 43
11.4 Heating element ............................................................................................................................... 44
11.4.1 General characteristics .............................................................................................................. 44
11.5 Temperature probe ........................................................................................................................... 45
11.5.1 General characteristics .............................................................................................................. 45
11.6 Analogue pressure switch ................................................................................................................. 46
11.6.1 General characteristics .............................................................................................................. 46
11.7 Door safety interlock PTO (Pull To Open) ......................................................................................... 47
11.7.1 General characteristics .............................................................................................................. 47
11.7.2 Operating principle .................................................................................................................... 47
11.7.2.1 Mechanical operation .......................................................................................................... 48
11.7.3 Manual opening of the appliance door........................................................................................ 49
11.8 Universal motor ................................................................................................................................ 50
11.8.1 General characteristics .............................................................................................................. 50
11.8.2 Operating principle .................................................................................................................... 50
11.8.2.1 Motor speed control ............................................................................................................ 50
11.8.2.2 Direction of rotation of the motor ......................................................................................... 51
11.8.2.3 Tachometric generator ........................................................................................................ 51
11.8.3 Power supply to motor ............................................................................................................... 52
11.9 Three-phase asynchronous motor – Inverter ..................................................................................... 53
11.9.1 General characteristics .............................................................................................................. 53
11.9.2 Power supply to motor ............................................................................................................... 53
11.10 Inverter ............................................................................................................................................. 54
11.10.1 General characteristics .............................................................................................................. 54
11.11 Anti-foam control system .................................................................................................................. 55
11.12 Solenoid valves ................................................................................................................................ 56
11.12.1 General characteristics .............................................................................................................. 56
11.12.2 Operating principle .................................................................................................................... 56
11.12.3 Mechanical jamming of the solenoid valve ................................................................................. 56
11.12.4 Low water pressure ................................................................................................................... 56
12 ALARM SUMMARY TABLE ................................................................................................................. 57
13 DIAGRAMS.......................................................................................................................................... 61
13.1 Operating Circuit Diagram EWX13611 (with universal motor) ............................................................ 61
13.2 Key to operating circuit diagram EWX13611 (with universal motor) ................................................... 62
13.3 Operating Circuit Diagram EWX11831 (with three-phase motor) ....................................................... 63
13.4 Key to operating circuit diagram EWX11831 (with three-phase motor) .............................................. 64
14 ACCESSIBILITY (appliances with universal motor) .............................................................................. 65
14.1 Worktop ............................................................................................................................................ 65
14.2 From the worktop, you can access .................................................................................................... 65
14.2.1 Main board ................................................................................................................................ 65
14.2.2 Solenoid valve ........................................................................................................................... 68
14.2.3 Display board assembly ............................................................................................................. 68
14.2.4 Control panel ............................................................................................................................. 70
14.2.5 Analogue pressure switch .......................................................................................................... 73
14.2.6 Detergent dispenser .................................................................................................................. 74
14.2.7 Upper counterweight .................................................................................................................. 75
14.3 Accessing the front part .................................................................................................................... 76
14.3.1 Door hinge – Door ..................................................................................................................... 76
14.3.2 Door safety interlock .................................................................................................................. 76
14.3.3 Blade ......................................................................................................................................... 79
14.3.4 Front panel ................................................................................................................................ 81
14.4 From the front panel, you can access ............................................................................................... 82
14.4.1 Front counterweight ................................................................................................................... 82
14.4.2 Bellow seal ................................................................................................................................ 82
14.4.3 Welded tub assembly ................................................................................................................ 82
14.4.4 Tub suspension springs ............................................................................................................. 83
14.5 Accessing the rear part ..................................................................................................................... 84
14.5.1 Back panel ................................................................................................................................ 84
14.6 From the back panel, you can access ............................................................................................... 84
14.6.1 Belt ............................................................................................................................................ 84
14.6.2 Plastic pulley (Ø 273 mm) .......................................................................................................... 85
14.6.3 Motor ........................................................................................................................................ 85
14.6.4 Heating ...................................................................................................................................... 85
14.7 From the base of the appliance, you can access ............................................................................... 86