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Electrolux WSF67251S Service Manual

Domestic household dishwashers

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ELECTROLUX HOME PRODUCTS PTY LTD
ABN 51 004 762 341
Technical Publication Nº DWSI1008
CONTENTS
SERVICE TEST, DIAGNOSTIC ACCESS & TEST
SERVICE FAULT CODES
INDIVIDUAL COMPONENTS AND RESISTANCE VALUES
NOTES PAGE
WIRING DIAGRAM & PCB CONNECTIONS
ELECTRICAL COMPONENTS, TERMS AND ABBREVIATIONS
ELECTRICAL COMPONENT SPECIFICATIONS
PLASTIC COMPONENTS
DISASSEMBLY
ACCESSING INNER COMPONENTS
ACCESSING COMPONENTS FROM THE FRONT OF THE MACHINE
ACCESSING COMPONENTS THROUGH THE BASE
 Copyright 2015 ELECTROLUX HOME PRODUCTS PTY LTD Technical Services
WESTINGHOUSE
SERVICE MANUAL
DOMESTIC HOUSEHOLD
DISHWASHERS
MODEL:
MODEL:
MODEL:
WSF67251S
PNC:
942001295 00
WSF67381S
PNC:
942001293 00
WSU67381S
PNC:
942001294 00
Issue: 2
Date: 06/18
PAGE
2
3
4
5
6-7
8
17
21
24
31
39
40

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Summary of Contents for Electrolux WSF67251S

  • Page 1 ACCESSING INNER COMPONENTS ACCESSING COMPONENTS FROM THE FRONT OF THE MACHINE ACCESSING COMPONENTS THROUGH THE BASE MODEL: WSF67251S PNC: 942001295 00 MODEL: WSF67381S PNC: 942001293 00 MODEL: WSU67381S PNC: 942001294 00  Copyright 2015 ELECTROLUX HOME PRODUCTS PTY LTD Technical Services...
  • Page 2 SERVICE TEST WSF67251S, WSF67381S & WSU67381S NOTE: Only the Service Technician can execute this procedure. Accessing Service Test:  Press and hold the Start/Pause button with the Dishwasher turned OFF.  Power the machine ON while continuing to hold Start/Pause button in for at least six seconds (6) ...
  • Page 3 SERVICE FAULT CODES DISPLAYED TYPE OF DESCRIPTION OF THE DISPLAY TO THE MACHINE STATUS POSSIBLE CAUSE ALARM ALARM CONDITON USER During 5”; 1) Washing program restarts 1) Water leakage from body Floater sensing switch ON 1) Stop all devices 1) Water leakage from body More than 5”;...
  • Page 4 INDIVIDUAL COMPONENTS AND THEIR RESISTANCE VALUES You can measure the components either on the PCB connectors or directly from the component. Measuring from the connectors of the PCB gives definitive results to define the repair suited. Using the Component Resistance Values from the table below, you can determine the failed component.
  • Page 5 NOTE PAGE Page 5...
  • Page 6 WIRING DIAGRAM Page 6...
  • Page 7 PCB CONNECTIONS Page 7...
  • Page 8 1. ELECTRICAL COMPONENTS, TERMS AND ABBREVIATIONS ABBREVIATION COMPONENT FLOWMETER NTC SENSÖR INLET VALVE FLOAT SWITCH DRAIN PUMP PRESSURE SWITCH DOOR SWITCH DISPENSER HEATER WASH MOTOR CAPACITOR REGENERATION VALVE THERMAL OVERLOAD 1.1 Wash Pump 95 Ω ± 6.65 Ω from the Main P.C.B. Connector KN2.3 – KN2 (Primary Winding) 126 Ω...
  • Page 9 Values of Alternative Pump Coils 1.3 Heater Casing Can’t be measured from the Main P.C.B. Connectors: From the component 23.95Ω ±15Ω Apply the p robes of the tester onto the relative connectors as shown. Page 9...
  • Page 10 1.4 Detergent Dispenser Can’t be measured from the Main P.C.B. Connectors: From the component 1660Ω ± 10Ω (25 C º) 1.5 Pressure Switch From the Main P.C.B. Connector KN2.10 – KN2.2 0Ω there is water (Full) ∞Ω there is not water (Empty) The above sketch shows the connectors of the pressure switch on the Main P.C.B.
  • Page 11 1.6 NTC Sensor From the Main P.C.B. Connector: (Relative to water temperature ºC) 25°C – 5000 Ω ± 250 Ω KN 7.3-KN 7.4 35°C – 3300 Ω ± 181.5 Ω 55°C – 1520 Ω ± 98.8 Ω 63°C – 1174 Ω ± 88.0 Ω 80°C –...
  • Page 12 1.7 Diverter From the Main P.C.B. Connector: 6840 Ω-±342 Ω on the connectors KN6.1 – KN 2.9 The above sketch shows the connectors of the diverter on the Main P.C.B. From the component Apply the probes of the tester onto the relative connectors as shown. Page 12...
  • Page 13 1.8 Float Switch From the Main P.C.B. Connector: 0 Ω (Position 1) on the connectors KN2.1 – KN2.5 Microswitch Inactive (No Water) ∞ Ω (Position 2) on the connectors KN2.1 – KN2.4 Microswitch Active (Water) Position 1: You can check the floater by controlling the specified value intervals. Position 2: If failure code has occurred related with the floater within control the above values;...
  • Page 14 1.9 Door Switch From the Main P.C.B. Connector: 0Ω on the connectors KN2.9 – KN2.2 (Door is closed) The above sketch shows the connectors of the door switch on the Main P.C.B. Apply the probes of the tester onto the relative connectors as shown. From the component Apply the probes of the tester onto the relative connectors as shown.
  • Page 15 1.10 Fan Motor From the Main P.C.B. Connector: 238.6Ω ± 11.9 Ω on the connectors KN 6.2 – KN 2.9 The above sketch shows the connectors of the fan motor on the Main P.C.B. Apply the probes of the tester onto the relative connectors as shown. From the component Apply the probes of the tester onto the relative connectors as shown.
  • Page 16 1.11 Rinse Aid Sensor From the main P.C.B. connector: The above sketch shows the connectors of the fan motor on the Main P.C.B. Apply the probes of the tester onto the relative connectors as shown. From the component 1.12 ON/OFF Button This component can’t be measured from the Main P.C.B.
  • Page 17 2. ELECTRICAL COMPONENT SPECIFICATIONS 2.1 Circulation Pump Brushless DC motors • 0 – 3400 RPM range • Winding value is immeasurable. • Thermal protection software controlled. • Pump output 0 - 80 l / min 0-400 mbar • Power is from 0 - 60 watts. Electronic card-controlled variable-speed motor.
  • Page 18 2.3.3 Pressure Switch Voltage : 220/240 V Frequency : 50/60 Hz (16 A – 3 Pins) 2.3.4 Diverter Voltage : 220/240 Volt Frequency : 50/60 Hz Power : 8 W : 6840 ±5 Ω Resistance 2.4 Detergent Dispenser 2.4.1 Detergent Compartment: Main wash compartment : 40cm³...
  • Page 19 2.6 Door Lock Is a mechanical lock/release system that holds the door closed. It supplies connection of electrical parts in the machine and cutting off the connection when door opens. Current : 16 (4) A 2.7 ON/OFF Button Assembled in the control panel unit ON/OFF (two pole) Voltage : 250V Current...
  • Page 20 2.10 Flowmeter Located at the base of the Air Break, it measures the amount of water input to the machine with precise control. 2.11 Power Cord Type : AU 3 x 1 mm² copper conductors Isolation : TS 9760 H05VV-F Plug : TS-IEC 60884–1, grounded Length : 1800mm...
  • Page 21 3. PLASTIC COMPONENTS 3.1 Drain Hose Drain hose maximum height : 110cm Drain hose minimum height : 50cm Drain Hose maximum length : 400cm 3.2 Hose Inlet Valve Safety Fitting that has a straight cuff with safety inlet solenoid assembled to tap outlet. Fitting with 90º...
  • Page 22 3.5 SUPPORT SPRAY ARM LOWER It distributes water from diverter to upper and lower spray arms. 3.6 TUBE FEED SPRAY ARM UPPER It transfers water from support spray arm lower to spray arm upper. 3.7 CHANNEL UPPER SPRAY ARM FEED It transfers water from support spray arm lower to spray arm upper.
  • Page 23 3.8 SPRAY ARM BASKET TOP COMPLETE It distributes water from the channel upper spray arm feed onto dirty dishes in the upper basket. 3.9 LOWER SPRAY ARM It distributes water from support spray arm lower to dirty dishes in the lower basket. Page 23...
  • Page 24 4. DISASSEMBLY CAUTION! REMOVE ELECTRIC PLUG FROM THE SOCKET BEFORE DISASSEMBLY 4.1 Work Top a) Remove two screws that fix the worktop at the rear of the machine b) Push the top-plate back and lift it up 4.2 Plastic Kick plate a) Open door and remove two screws fixing plastic kick plate b) Remove the plastic kick plate as shown in the picture Page 24...
  • Page 25 4.3 Side P anels Before the side panels can be removed: a) Remove the worktop b) Remove plastic kick panel Page 25...
  • Page 26 4.4 Front Panel a) Remove six screws that fix the front panel. b) Pull down the front panel as it shown in the Picture 4.5 Kick Plate (Sheet Metal) a) Remove top plate, plastic kick plate and side panels b) Remove two screws that fix the kick plate sheet iron c) Pull it down as shown in the picture Page 26...
  • Page 27 4.6 Panel Control a) Remove six screws that fix panel control to the inner door b) Flip panel control assembly down 4 .7 Electronic Card a) Remove the wires that as shown in the picture WARNING: WHEN REMOVING WIRES PULL FROM THE CONNECTOR, DO NOT PULL FROM WIRES Page 27...
  • Page 28 b) Remove PCB box cover with pulling its plastic hinges c) Remove the wire that is between rotary switch and electronic card d) Remove the PCBfrom PCB box by removing PCB box’s plastic hinges Page 28...
  • Page 29 4.8 Door Lock Group a) Remove control panel group b) Remove two screws that fix the door lock group. 4.9 Dispenser a) Remove the panel door front b) Remove the wire c) Remove dispenser from inside door‘s hinges by using slotted screw driver d) Push out and remove the dispenser Page 29...
  • Page 30 WARNING: TAKE CARE AND USE WORK COVERS, PANEL INNER DOOR IS SHARP AND CAN CUT YOUR HANDS 4.10 Door Inner and Hinge Cord Group a) Remove side panels b) Remove hinge spring from hinge cord group as shown in the picture c) Open the door inner and lift off locator as shown in the picture Page 30...
  • Page 31 5. ACCESSING INNER COMPONENTS 5.1 Basket Lower a) Open dishwasher door. b) Pull the basket out toward yourself. 5.2 Basket Upper a) Open dishwasher door. b) Pull the basket toward yourself. c) The plastic stop on basket rails swivels from left to right securing the basket upper. 5.3 Tray Cutlery Upper (if fitted) a) Pull the basket toward yourself b) The front plastic stop on the rails swivels left to right securing the tray cutlery upper.
  • Page 32 5.4 Filters a) Open dishwasher door b) Remove basket lower c) To remove micro filter group rotate them in the direction of anticlockwise and pull them assembly out as shown in the picture d) To remove the metal filter pull it up as it shown in the picture 5.5 Basket Rails a) To remove the basket rails, open the door and take out baskets b) Pull the basket toward yourself...
  • Page 33 5.6Spray Arms a) After removing the lower basket, gripping the lower spray arm centrally pull the spray arm firmly upwards. b) To remove upper spray arm feed pipe, part the bracket at the rear of the tub to release the feed pipe upper spray arm. c) To remove upper spray arm feed pipe, turn to the left it than pull it up as shown in the picture.
  • Page 34 5.7 Sump a) Remove any residual water from the sump with a sponge so that it does not flow into the tub and the pressure switch tubes. b) From inside tub remove the basket and lower spray arm c) Remove the micro filter group and metal filter d) Then lay the appliance on the rear panel e) Remove lover cover f) Detach all the hoses (sump-draining hose, circulation pump–sump, sump–water...
  • Page 35 5.9 Motor Fan a) Remove right sıde panel b) Remove the two screws that connects the fan housing to the base c) Remove the turbo fan on the condensing unit Page 35...
  • Page 36 5.10 NTC with Thermal Protector a) Remove turbofan. NTC is at the end of the heater group b) Remove the power connector that is connected.(NTC on the left, on the right is the thermal protection cable) c) Pull and remove NTC locking pin d) Pull NTC out from heater assembly to unclip off of the element 5.11 Air Break a) Remove the left side panel of the machine...
  • Page 37 5.12 Cover Valve Inlet a) Remove left side panel b) Using the tip of a flat screwdriver, remove cover valve inlet from the basement as shown in the picture c) Unclip the valve inlet from the cover WARNING: IF YOU DO NOT OBEY INSTRUCTIONS WHILE DISASSEMBLY OF THE COVER INLET VALVE IT CAN BREAK Page 37...
  • Page 38 5.13 Supply Cable a) Remove the cover valve inlet from the lower base b) Remove the tray spillage c) Disconnect supply cord from EMC filter Page 38...
  • Page 39 6. ACCESSING COMPONENTS FROM THE FRONT OF MACHINE a) Remove plastic kick plate and .metal kick plate. 6.1 Drain Pump a) Remove plastic kick plate and metal kick plate b) Remove the wires c) Rotate drain pump anticlockwise to remove from the sump Page 39...
  • Page 40 7. ACCESSING COMPONENTS THROUGH THE BASE 7.1 Tray Spillage Removal a) Lay the appliance on its left hand side b) Unclip tray spillage as indicated in the picture 7.2 Circulation Pump a) Lay the appliance on the rear panel b) Unclip tray spillage (as above) c) Remove the electrical connection on the circulation pump d) Remove 2 clamps that are shown in the...
  • Page 41 e) Remove circulation pump from its locations in the base 7.3 Heater-Group a) Unclip tray spillage b) Remove electrical connections c) Remove five (5) screws which fix heater group to sump Page 41...
  • Page 42 7.4 Water Softener N/A a) To remove water softener cap, rotate it anticlockwise b) To remove water softener nut, rotate it anticlockwise c) Remove left side panel d) Unclip tray spillage e) Remove electrical connectors between water softener and air-break f) remove the hose connectors between sump and water softener 7.5 EMC Filter a) Unclip the tray spillage...
  • Page 43 7.6 Float Switch a) Remove plastic kick plate and metal kick plate b) From the front, remove excess water in spill tray with sponge c) Lay the appliance on its left hand side d) Unclip tray spillage e) Remove screws (2 pcs) 7.7 Drain Hose a) Remove the hose connection plastic...

This manual is also suitable for:

Wsf67381sWsu67381s942001295 00942001293 00942001294 00