Electrolux EWX11831 Service Manual page 4

12.5 Water circuit ........................................................................................................................................ 46
12.5.1 OKO version drain circuit ............................................................................................................... 46
12.5.2 JET version drain circuit ................................................................................................................. 46
12.5.3 JET circuit....................................................................................................................................... 46
12.5.4 New Filter dial ................................................................................................................................ 47
12.6 Electronic control ................................................................................................................................. 47
12.6.1 Programming/Updating the main circuit board............................................................................... 47
12.7 Electronic control ................................................................................................................................. 48
13 ELECTRICAL COMPONENTS .................................................................................................................. 50
13.1 Noise filter ........................................................................................................................................... 50
13.1.1 General characteristics .................................................................................................................. 50
13.2 Display board ...................................................................................................................................... 50
13.3 Drain pump - Aqua control .................................................................................................................. 51
13.3.1 General characteristics .................................................................................................................. 51
13.4 Aqua control (where featured)............................................................................................................. 52
13.4.1 General characteristics .................................................................................................................. 52
13.5 Heating element .................................................................................................................................. 53
13.5.1 General characteristics .................................................................................................................. 53
13.6 Temperature probe ............................................................................................................................. 54
13.6.1 General characteristics .................................................................................................................. 54
13.7 Analogue pressure switch ................................................................................................................... 55
13.7.1 General characteristics .................................................................................................................. 55
13.8 Shock absorber with weight sensor (where featured) ......................................................................... 56
13.8.1 General characteristics .................................................................................................................. 56
13.8.2 Operating principle ......................................................................................................................... 57
13.9 Door safety interlock ........................................................................................................................... 58
13.9.1 General characteristics .................................................................................................................. 58
13.9.2 Operating principle ......................................................................................................................... 58
Three-phase asynchronous motor - Inverter & Three-phase synchronous motor with permanent
13.10
magnets 60
13.10.1 General characteristics & Power supply to motor .......................................................................... 60
13.10.2 Operating principle ......................................................................................................................... 61
13.11 Inverter UIMC & EMC14 ..................................................................................................................... 62
13.11.1 General characteristics .................................................................................................................. 62
13.12 Circulation pump (where featured) ...................................................................................................... 63
13.12.1 General characteristics .................................................................................................................. 63
13.13 Solenoid valves ................................................................................................................................... 63
13.13.1 General characteristics .................................................................................................................. 63
13.13.1.1 Operating principle .................................................................................................................. 64
13.13.1.2 Mechanical jamming of the solenoid valve .............................................................................. 64
13.13.1.3 Low water pressure ................................................................................................................. 64
13.14 Flowmeter (where featured) ................................................................................................................ 65
13.14.1 General characteristics .................................................................................................................. 65
13.14.2 Operating principle of the flowmeter .............................................................................................. 66
13.15 Drum light (where featured) ................................................................................................................ 67
14 ALARM SUMMARY TABLE ....................................................................................................................... 68
15 DIAGRAMS ................................................................................................................................................ 75
15.1 EWX11831 Diagram with THREE-PHASE ASYNCHRONOUS MOTOR ........................................... 75
15.1.1 Key to diagram ............................................................................................................................... 76
15.2 EWX14931 Diagram with THREE-PHASE ASYNCHRONOUS MOTOR ........................................... 77
16 ACCESS ..................................................................................................................................................... 78
16.1 Worktop ............................................................................................................................................... 78
16.2 From the worktop, you can access ..................................................................................................... 78
16.2.1 EWX11831 Main board .................................................................................................................. 78
16.2.2 EWX14931 Main board .................................................................................................................. 80
16.2.3 Solenoid valve ................................................................................................................................ 83
16.2.4 Control panel .................................................................................................................................. 83
16.2.5 Display board/light diffuser/button springs/buttons assembly ........................................................ 84
16.2.6 Analogue pressure switch .............................................................................................................. 87
16.2.7 Detergent dispenser ....................................................................................................................... 87
16.2.8 Detergent fill pipe ........................................................................................................................... 88
16.2.9 Upper counterweight ...................................................................................................................... 88
16.3 Accessing the front part ...................................................................................................................... 88
16.3.1 Door hinge - Door ........................................................................................................................... 88
16.3.2 Door safety interlock ...................................................................................................................... 89
Technical Support - DMM
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599 77 23-65 Rev. 03