Asko DW20.1 Service Manual
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Asko DW20.1 Service Manual

Asko DW20.1 Service Manual

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SERVICEMANUAL
DISHWASHERS
DW20.1, DW20.2, DW20.3,
DW20.4, DW20.5, DW20.C

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Summary of Contents for Asko DW20.1

  • Page 1 SERVICEMANUAL DISHWASHERS DW20.1, DW20.2, DW20.3, DW20.4, DW20.5, DW20.C...

  • Page 3: Table Of Contents

    Contents 1. Introduction ......................5 2. Technical data ......................8 2.1 Technical information ..................8 2.2 Components and measured values ..............9 2.3 Connection diagram ..................11 2.4 Functional description of components ............. 12 3. Installation......................15 4. Settings........................19 4.1 Programme ....................

  • Page 5: Introduction

    I N T R O D U C T I O N 1. Introduction In your hand you are holding ASKO’s Service Manual for the new generation of dishwashers. The dishwashers in the DW20 range are available in four different basic models with the type designations DW20.1, DW20.2, DW20.3, DW20.4, DW20.5 and DW20.C.
  • Page 6 INTRODUCTION INTRODUCTION DW20.1 DW20.1 is available in three variants, either with none, one or with two options. All have four set programmes and operating controls on the front of the panel. DW20.2 DW20.2 is a control unit with a large display on the front of the panel. It has six set programmes and none or three or five options.
  • Page 7 INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION DW20.5 DW20.5 is a control module with display on the front of the panel. It has five fixed programs and between three and five options. S T A R T S T A R T P R O G P R O G S T O P...

  • Page 8: Technical Data

    T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D AT T T T T A A A A A 2.

  • Page 9: Components And Measured Values

    T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D AT T T T T A A A A A 2.2 Components and measured values Indicated resistance values apply at room temperature (ca.
  • Page 10 T E C H N I C A L D AT T T T T A A A A A Item No. Component Item No. 8801260 Control unit Compl., DW20.1 8801285 Control unit Compl., DW20.1 8801286 Control unit Compl., DW20.1 8801261 Control unit Compl., DW20.2...

  • Page 11: Connection Diagram

    T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D AT T T T T A A A A A T E C H N I C A L D A T E C H N I C A L D A 2.3 Connection diagram...

  • Page 12: Functional Description Of Components

    T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D AT T T T T A A A A A T E C H N I C A L D A T E C H N I C A L D A 2.4 Functional description of components...
  • Page 13 T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D AT T T T T A A A A A Heating element Main switch...
  • Page 14 T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D A T E C H N I C A L D AT T T T T A A A A A Wiring Pressure sensor...

  • Page 15: Installation

    I N S T I N S T I N S TA L L A A L L A A L L A A L L AT I O N T I O N T I O N T I O N I N S T I N S T A L L A...
  • Page 16 I N S T I N S T I N S T I N S T I N S TA L L A A L L A A L L A A L L AT I O N A L L A T I O N T I O N T I O N...
  • Page 17 I N S T I N S T I N S TA L L A A L L A A L L A A L L AT I O N T I O N T I O N T I O N I N S T I N S T A L L A...
  • Page 18 I N S T I N S T A L L A A L L A T I O N T I O N I N S T I N S T I N S TA L L A A L L A A L L AT I O N T I O N T I O N...

  • Page 19: Settings

    I N S T I N S T I N S T I N S T I N S TA L L A A L L A A L L A A L L A A L L AT I O N T I O N T I O N T I O N...

  • Page 20: Time Display

    : The start lamp flash if the door is opened during the programme or is open when the programme is started. DW20.1 : The start lamp flash if the door is opened during the programme or is open when the programme is started.
  • Page 21 PROGRAM STOP STOP STOP Water hardness setting Panel type DW20.1, L = LED, S =Push-button Activation of setting menu Temperature selection S3 Turn off the main switch (I/0) Wait for at least five seconds L6 lights when High temperature is selected...
  • Page 22 S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S DW20.2 Variant setting If the control unit is replaced, the machine will...
  • Page 23 S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S Child lock Activation/deactivation of setting menu: Water hardness setting...
  • Page 24 S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S DW20.3 Panel type DW20.3, L = LED, S = Push-button S3a Washing in both baskets...
  • Page 25 S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S Water hardness setting Child lock Activation of setting menu:...
  • Page 26 S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S DW20.4 L1 L2 L3 Panel type DW20.4, L = LED, S = Push-button...
  • Page 27 S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S S E T T I N G S Press Start (S2) 3 times in a rapid succes- sion e) Temperature display in °C/°F.
  • Page 28 DW20.5 Panel type DW20.5, L = LED, S =Push-button, D= S6 3 in 1 Combination washing agent Display If one uses combination dishwashing detergents S7a Washing in both baskets such as “3 in 1” this option can be selected. The dishwashing program automatically adapts to Both-basket washing (basic setting).
  • Page 29 Total reset If you wish access to the variant setting again: Fill the machine with appr. 1 litre of water! To reset the machine to its basic settings. Turn off the main switch (I/0) Turn off the main switch (I/0) Wait for at least 5 seconds Wait for at least 5 seconds Keep the Programme/Start buttons...
  • Page 30 DW20.C Total reset To reset the machine to its basic settings. Fill the machine with appr. 1 litre of water! L1 L2 L3 L4 L5 L6 Turn off the main switch (I/0) Wait for at least 5 seconds Keep the Programme button depressed (S1) Turn on the main switch (I/0) Release the Programme button (S1).

  • Page 31: Water Level Dw20

    4.4 Water level DW20 When servicing DW20 dishwashers, it is important to check the water level in the machine. This is particularly important when programming the time-controlled water intake. Too low a water level can cause poor dishwashing results. Always allow the machine to take in and pump out water a few times before checking the level.

  • Page 32: Service Menu

    The water intake can be adjusted by keeping the 5.1 Activation of service menu Programme button depressed until ”1” in the display disappears. DW20.1 (only water intake setting) Turn off the main switch (I/0) Machines manufactured before year 2005 Wait for at least 5 seconds week 16 (NB! For DW20.C, this applies to all...
  • Page 33 DW20.3 L4 lit: Water intake volume is increased by 5 % time-controlled Turn off the main switch (I/0) L5 lit: Water intake volume is increased by 10 % Wait for at least 5 seconds time-controlled Keep the Programme and Start buttons L6 lit: Water intake volume is increased by 15 % depressed (S1 &...
  • Page 34 Machines manufactured year 2005 week 16 ° C Display °C Display and later Press Drying/Menu (S4) to access water intake setting Press Temperature/Set (S3) to adjust the water intake. Display 0: Normal water intake volume Display +5%: Water intake volume is increased by 5% Display +10 %: Water intake volume is increased by 10 %...
  • Page 35 S E R V I C E M E N U S E R V I C E M E N U S E R V I C E M E N U S E R V I C E M E N U S E R V I C E M E N U Adjusting water intake Press the program selector (S1) for 3 secs to...

  • Page 36: Programme Flow Description

    S E R V I C E M E N U S E R V I C E M E N U S E R V I C E M E N U S E R V I C E M E N U S E R V I C E M E N U 5.2 Programme flow description Illustrated below is a normal programme (for EU ) and the sequence in which the various components arc...
  • Page 37 S E R V I C E M E N U S E R V I C E M E N U Cooling down (not DW20.1) Machines with softener : Cool down step is NOT performed during regeneration. Drain pump...
  • Page 38 EU (not DW20.C) Normal wash and High temp selected (for machines produced from W16 2005) Component Commentary Pre wash Drain pump 25 sec Inlet valve 605 pulse*, 47 sec, 3.1 lit*** 545 pulse* 43 sec, 2.8 lit EU** Circulation pump 30 sec Upper arm high pressure** Pause...
  • Page 39 Cooling down (not DW20.1) Machines with softener : Cool down step is NOT performed during regeneration. Drain pump 5 sec Inlet valve 24 sec Circulation pump 60 sec Drain pump 25 sec Pre-rinse Inlet valve 170 pulse* , 14 sec, 0.9 lit EU...

  • Page 40: Troubleshooting

    T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G 6.
  • Page 41 T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G If you have answered “YES”...

  • Page 42: Fault Indication

    T R O U B L E S H O O T I N G T R O U B L E S H O O T I N G 6.2 Fault indication DW20.2 DW20.2 DW20.2 DW20.2 DW20.2 DW20.1 DW20.1 DW20.1 DW20.1 DW20.1 L1 L2 L3 L4 L5 L6 START...

  • Page 43: Fault Codes

    Check: Pressure sensor, control unit and wiring. LED L1/Fault code F1, Temperature stop fault (no LED L1+L2/Fault code F7, Pumping out fault indication in DW20.1) (machines with pressure sensor) The temperature rise is less than 5°C in ten Water not evacuated after 120 seconds’ pumping minutes.

  • Page 44: Tools

    S E R V I C E S E R V I C E S E R V I C E S E R V I C E S E R V I C E 7. Tools 7.1 Tools The following tools are used for servicing dishwasher model DW20: Torx Ring spanner...

  • Page 45: Register

    Variant setting DW20.2 22 Variant setting DW20.3 24 Main switch 13 Variant setting DW20.4 27 Mixed wash 19 Water hardness setting DW20.1 21 Water hardness setting DW20.2 23, 28 Water hardness setting DW20.3 24 Normal wash 19 Water hardness setting DW20.4 27 Water hardness setting DW20.C 28...
  • Page 46 Notes...
  • Page 47 Notes...
  • Page 48 Notes Art. nr 80 755 33 rev 06...

This manual is also suitable for:

Dw20.2Dw20.3Dw20.4Dw20.5Dw20.c

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