Welbilt 32Z9000 Service Manual
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Welbilt 32Z9000 Service Manual

Microwave combination oven
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Microwave combination oven
Service and repair guide CE
Part number: 32Z9000
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Summary of Contents for Welbilt 32Z9000

  • Page 1 Microwave combination oven Service and repair guide CE Part number: 32Z9000 Read instructions before use...

  • Page 2: Table Of Contents

    eikon e1s Service and repair guide Table of contents Document information ............................... 6 EC Declaration of Conformity ............................. 7 Environmental protection ..............................8 Statement of principles ................................... 8 Environmental protection procedures ............................8 Correct disposal of this product (waste electrical & electronic equipment) ................... 8 Noise emission ....................................
  • Page 3 eikon e1s Service and repair guide Potential risks during cleaning ............................... 24 Hazards and safety precautions during servicing and repair ................25 Personal Protective Equipment ..............................25 Potential risks to move appliance ..............................25 Rules for moving and setting up the wheeled trolley safely ......................26 Risk of burns ....................................
  • Page 4 eikon e1s Service and repair guide Editing a selected cooking profile group name..........................49 Changing settings ..............................50 Changing settings process ................................50 Operating mode / navigation settings ............................51 Language settings ..................................51 Cavity temperature settings and labels ............................52 Service information and error logs ..............................
  • Page 5 eikon e1s Service and repair guide Microwave Leakage test ................................82 Temperature Control test: measuring the cavity temperature ..................... 83 Recommission test ..................................85 Commissioning the oven after service/repair/testing ........................86 High voltage components (casing removed) ..........................87 Mains voltage components (casing removed) ..........................89 Firmware updates..............................

  • Page 6: Document Information

    eikon e1s Service and repair guide Document information Version control Date Issue number Description Issued by January 2020 Service and Repair Guide Merrychef Document purpose This guide should be read prior to servicing or repairing the appliance. This document is intended for all trained service technicians who work with the Merrychef eikon e1s microwave combination oven, and provides them with the necessary information for carrying out servicing and repair work properly and safely.

  • Page 7: Ec Declaration Of Conformity

    Authorised to compile the technical documentation is in accordance with Annex II A Section 2 of Directive 2006/42/EC Welbilt UK Limited, Ashbourne House, The Guildway, Old Portsmouth Road, Guildford GU3 1LR, United Kingdom. Place and Date of issue: Guildford, 14 March 2018.

  • Page 8: Environmental Protection

    Service and repair guide Environmental protection Welbilt UK employs a quality management system in accordance with EN ISO 9001:2008 and a certified environmental management system in accordance with EN ISO 14001. Statement of principles Our customers' expectations, the legal regulations and standards and our company's own reputation set the quality and service for all our products.
  • Page 9 eikon e1s Service and repair guide Section 1: Safety...

  • Page 10: Summary Of Design, Operational Hazards And Safety Devices

    eikon e1s Service and repair guide Summary of design, operational hazards and safety devices The information in this section should be read and understood by Facility Managers, Chefs, Users and Service Technicians. The microwave combination oven is designed to protect the user from all hazards that can reasonably be avoided by design measures.

  • Page 11: Parts And Safety Devices

    eikon e1s Service and repair guide Parts and safety devices Figure 1.2: e1s front and rear views – parts and safety devices Item Part / safety device Function and precautions ON/OFF appliance Used to turn the microwave combination oven on and off. However, turning this switch switch off does not isolate the appliance from the electricity supply.

  • Page 12: Hazard Points

    eikon e1s Service and repair guide Other safety devices Safety device Functions Checks / Actions Door interlocks - Electric door Ensures that the microwave generation Check door switch: ▪ sensor for appliance door system cannot be powered when the Action: Open the appliance door ▪...

  • Page 13: General Safety

    eikon e1s Service and repair guide General safety The information in this section should be read and understood by Facility Managers, Chefs, Users and Service Technicians. IMPORTANT SAFETY INSTRUCTIONS When using electrical appliances, basic safety precautions should be followed as detailed in this section.

  • Page 14: Precautions When Using The Appliance

    eikon e1s Service and repair guide • Eggs in their shell and hard-boiled eggs should not be heated in microwave ovens since they may explode even after microwave heating has ended. • Do not operate the appliance using microwave only or combination function without food or liquid inside the cooking chamber, as this may result in overheating and cause damage.

  • Page 15: Requirements To Be Met By Operating Personnel

    eikon e1s Service and repair guide − Always place containers holding liquids or holding food that will liquefy during cooking on shelves that allow a proper view into the container for all users. − Always take out horizontally any containers holding liquids or holding food that will liquefy during cooking.

  • Page 16: Operating Environment Requirements

    eikon e1s Service and repair guide See Section 2B. If the supply cord is damaged, it must be replaced by the • manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. The appliance must be disconnected from its power supply during •...

  • Page 17: Cleaning Safely Requirements

    eikon e1s Service and repair guide Cleaning safely requirements • Personnel charged with cleaning must be trained regularly by the person responsible for the microwave combination oven. • The oven should be cleaned regularly and any food deposits removed. • The oven must already be cool or cooled down following the correct procedures specified in Section 2G.

  • Page 18: Requirements To Be Met By Operating Personnel Working Positions

    eikon e1s Service and repair guide Requirements to be met by operating personnel working positions The information in this section should be read and understood by Facility Managers, Chefs, Users and Service Technicians. Personnel Qualifications Tasks Has relevant professional training Responsible for staff safety.

  • Page 19: 1D. Hazards And Safety Precautions During Installation And Setting Up

    eikon e1s Service and repair guide 1D. Hazards and safety precautions during installation and setting up The information in this section should be read and understood by Facility Managers, Equipment Movers and Service Technicians. Personal protective equipment requirement When installing or moving the appliance, ensure the following personal protective equipment is used: Protective gloves •...

  • Page 20: Potential Risks During Installation And Setting Up

    eikon e1s Service and repair guide Requirements for supporting surface is met. • The supporting surface must be flat and level. − The supporting surface must have a non-slip surface. − The supporting surface must be able to bear the in-use weight of the appliance, plus the weight of −...

  • Page 21: Hazards And Safety Precautions When Preparing Appliance For Use

    eikon e1s Service and repair guide For microwave combination ovens on a wheeled platform, the length of the mains power lead must • accommodate the degree of movement allowed to the appliance by the retaining device on the wheeled platform. When moving the assembly (platform plus appliance), never place the mains power lead under tension.

  • Page 22: Hazards And Safety Precautions During Operation

    eikon e1s Service and repair guide Hazards and safety precautions during operation The information in this section should be read and understood by Facility Managers, Chefs, Users and Service Technicians. Personal protective equipment requirement Ensure work wear as specified in country-specific standards and directives for kitchen work is used, in particular: Protective clothing •...

  • Page 23: Potential Risks During Operation

    eikon e1s Service and repair guide Potential risks during operation Hot surfaces There is a risk of burn if any of the interior parts of the cavity (Figure 1.2, item 11), the inside of the appliance door or any parts that are or have been inside the oven during cooking are touched. Ensure the personal protective equipment detailed at the beginning of this section is used.

  • Page 24: Hazards And Safety Precautions During Cleaning

    eikon e1s Service and repair guide Hazards and safety precautions during cleaning The information in this section should be read and understood by Facility Managers, Chefs, Users and any other personnel charged with cleaning the appliance. Personal protective equipment requirement When cleaning the appliance cavity by hand, and using spray cleaning products, the following personal protective equipment should be used: Breathing mask...

  • Page 25: 1H. Hazards And Safety Precautions During Servicing And Repair

    eikon e1s Service and repair guide Risk of scalding from hot steam If water or cleaning agent is sprayed into the hot cavity, steam will be produced and this may scald. To minimise this risk: Before starting cleaning tasks, wait until the cavity has cooled to below 50°C / 122°F or use the 'Cool Down' •...

  • Page 26: Rules For Moving And Setting Up The Wheeled Trolley Safely

    eikon e1s Service and repair guide Rules for moving and setting up the wheeled trolley safely The appliance may need to be moved for service and repair. To avoid hazards, the following rules must be observed when moving the wheeled trolley (optional accessory) that carries the appliances: Watch out for all connecting cables when moving appliances.

  • Page 27: Hazards And Safety Precautions When Taking The Appliance Out Of Service

    eikon e1s Service and repair guide Hazards and safety precautions when taking the appliance out of service The information in this section should be read and understood by Facility Managers and Service Technicians or other suitably qualified service engineer. Personal protective equipment When disconnecting the appliance, ensure work wear and personal protective equipment is used as specified in applicable national regulations.
  • Page 28 eikon e1s Service and repair guide Section 2: Operations and Installation...

  • Page 29: Introduction To E1S

    eikon e1s Service and repair guide Introduction to e1s The Merrychef eikon e1s microwave combination oven offers you the flexibility of combination cooking with additional control over fan speed and microwave power. Combination cooking enables high quality results to be achieved in a fraction of the time taken by conventional cooking, particularly when baking, browning, roasting and grilling dishes.

  • Page 30: Appliance Parts And Their Functions

    eikon e1s Service and repair guide Appliance parts and their functions Figure 2.3: Appliance parts and their functions ON/OFF appliance switch – Used to turn the microwave combination oven on and off. Turning this switch off does not isolate the appliance from the electricity supply. easyTouch®...

  • Page 31: Equipment And Accessories Supplied

    eikon e1s Service and repair guide Equipment and accessories supplied The e1s microwave combination oven is supplied with the following equipment and accessories. Cook plate Air filter Paddle The cook plate sits inside the The air filter situated at the The paddle is used to remove food from appliance and food is placed on top lower front of the appliance is...

  • Page 32: Installing The Appliance

    eikon e1s Service and repair guide Installing the appliance Users must read Section 1: Safety Guide before installing or using the microwave oven. Unpacking Cut the box banding straps and Remove the customer Remove the packaging to remove the lid. documentation and any product reveal your microwave accessories:...

  • Page 33: Installation Location Requirements

    eikon e1s Service and repair guide Installation location requirements Minimum space required Figure 2.4 shows the space required to install the appliance. It also shows the minimum horizontal distances from adjacent walls and surfaces. The safety clearance on the top must also always be complied with. Figure 2.4: Minimum space requirements Safety clearance from the top (A) = 50mm (2”) •...

  • Page 34: Electrical Installation Requirements

    eikon e1s Service and repair guide Electrical installation requirements Safety rules Observe the following rules to prevent hazards caused by faulty electrical connections: Only electricians qualified under the terms of EN 50110-1 and from an authorised service company are • permitted to perform work on electrical equipment.
  • Page 35 ROW 13 A models are fitted with country specific 15/16 A plugs. Please contact your local Welbilt representative for further information. Table 2.2: e1s electrical specifications Equipotential bonding An equipotential bonding point is provided on the rear panel of the appliance for independent Earth (GND) •...

  • Page 36: Getting Started

    eikon e1s Service and repair guide Getting started Before turning on the oven, users must read Section 1E: Hazards and safety precautions when preparing appliance for use. Fitting the air filter The air filter is fitted in position below the cavity door.

  • Page 37: Settings On First Usage

    eikon e1s Service and repair guide Settings on first usage The system is preconfigured with all the required settings to start cooking immediately following installation. However, you may want to configure the following before using the oven. Date and time •...

  • Page 38: Selecting Suitable Utensils

    eikon e1s Service and repair guide Selecting suitable utensils You may want to ensure you have suitable utensils before using the oven. Only use utensils that are suitable for use in microwave combination ovens. Check the manufacturer’s instructions and temperature rating to determine the suitability of individual containers or utensils.

  • Page 39: Understanding The Main Menu And Keyboard

    eikon e1s Service and repair guide Understanding the main menu and keyboard The easyTouch screen ® display, layout and icons shown herein are for guidance purposes only and are not intended to be an exact representation of those supplied with the appliance.

  • Page 40: 2D. Cooking Procedures

    eikon e1s Service and repair guide 2D. Cooking procedures How to cook On a preheated oven, select a Open the appliance door and Close the appliance door again. cooking profile from the place the prepared food on the The cooking process will cookbook or enter a new cooking cook plate.

  • Page 41: Using A Cooking Profile - Quick Serve Mode

    eikon e1s Service and repair guide Using a cooking profile – quick serve mode Select the ‘cookbook’ symbol from the main menu screen and then select the All Menus option. Use the scroll up/down arrows to find the cooking profile. Note: If a picture has a red frame around it, this means the cavity temperature is set too high or too low for that cooking profile.

  • Page 42: Using A Cooking Profile - Full Serve Mode

    eikon e1s Service and repair guide Using a cooking profile – full serve mode Select the ‘cookbook’ symbol from the main menu screen and then select a group of cooking profiles, for example ‘ITALIAN SUBS’, to display the individual cooking profiles. Select a cooking profile from the options available in the selected group, for example ‘ITALIAN SUB x 2’.

  • Page 43: Choosing Cooking Profiles For Press&Go Menu

    eikon e1s Service and repair guide Choosing cooking profiles for Press&Go menu Select ‘Press&Go’ from the main menu screen, and then select the ‘edit cookbook’ symbol. Two lists are displayed. The list on the left shows the cooking profiles that are part of the •...

  • Page 44: Changing The Cavity Temperature

    eikon e1s Service and repair guide Changing the cavity temperature You may need to change the cavity temperature depending on the food you are cooking. If the cavity temperature is set to a value unsuitable for a cooking profile, it will need to be changed before that cooking profile can be used. Cooking profiles unsuitable for the set temperature are highlighted with a red border.

  • Page 45: Cooking Profiles

    eikon e1s Service and repair guide Cooking profiles Creating a cooking profile 1. Enter development mode 3. Set the cooking time 5. Set the fan speed Select the ‘chef’s hat’ symbol from Select the ‘clock’ symbol and enter Select the ‘fan’ symbol and set the the main menu screen to enter the cooking time for each stage up fan speed within the limits shown on...

  • Page 46: Viewing And Editing Cooking Profiles

    eikon e1s Service and repair guide Viewing and editing cooking profiles Select the ‘cookbook’ symbol Select the ‘All menus’ symbol Select the ‘edit cookbook’ from the main menu screen. from the cookbook screen. symbol. Use the up/down scroll arrows to Select the ‘view/edit cooking View or adjust the cooking find the cooking profile.

  • Page 47: Moving A Cooking Profile In A List

    eikon e1s Service and repair guide Moving a cooking profile in a list Select the ‘cookbook’ symbol from the main menu Use the big scroll arrows to locate cooking profile screen and then select the ‘edit cookbook’ symbol groups and then use the small arrows in the centre in the cookbook screen.

  • Page 48: Adding A Cooking Profile To A Group Of Cooking Profiles

    eikon e1s Service and repair guide Adding a cooking profile to a group of cooking profiles Select ‘cookbook’ from the main Select the cooking profile group Select the ‘edit cookbook’ symbol menu screen. you want to add to. in the cooking profile screen. Use the up/down scroll arrows Select the green ‘left’...

  • Page 49: Editing A Selected Cooking Profile Group Name

    eikon e1s Service and repair guide Editing a selected cooking profile group name Select ‘cookbook’ from the main Select the ‘edit cookbook’ symbol Select the cooking profile menu screen. from the cookbook screen. group that you want to edit. Select the ‘edit cooking profile Enter the new name of the cooking group’...

  • Page 50: Changing Settings

    eikon e1s Service and repair guide Changing settings Changing settings process Select the ‘settings’ symbol from the main menu screen. Note: The main menu is displayed after the oven is pre-heated. If you want to change settings without pre-heating the oven, for example change settings before first usage, you should tap the first screen to hold it and then press the hidden key at the top right-hand corner to load the password screen, shown in step 2.

  • Page 51: Operating Mode / Navigation Settings

    eikon e1s Service and repair guide Operating mode / navigation settings Select the ‘operating mode/navigation’ symbol from the settings menu. Select ‘QUICK SERVE MODE’ for cooking only. Select ‘FULL SERVE MODE’ for creating cooking profiles. Select ‘MANUAL MODE’ to manually cook only via the ‘chef’s hat’ symbol on the main menu screen.

  • Page 52: Cavity Temperature Settings And Labels

    eikon e1s Service and repair guide Cavity temperature settings and labels Select the ‘temperature’ symbol from the settings menu. The temperature screen is displayed if two or more cavity temperatures are set above the minimum. You can now: Change a temperature set Edit the existing temperature labels Add a new temperature D) Change the measurement unit...

  • Page 53: Service Information And Error Logs

    eikon e1s Service and repair guide Service information and error logs The service information and error log function is required for servicing and repairing the system and therefore covered in Section 3: Service and Repair. Cooking profile counters Select the 'clipboard' symbol to display a listing of cooking profile counters.

  • Page 54: Setting The Date And Time

    eikon e1s Service and repair guide Setting the date and time Select the ‘clock/date’ symbol from the settings menu to display the setting options. Change the date: Select ‘MONTH’, enter the correct month on the keypad and select OK. Select ‘DAY’, enter the correct day on the keypad and select OK. Select ‘YEAR’, enter the correct last two digits of the year on the keypad and select OK.

  • Page 55: Sound Settings

    eikon e1s Service and repair guide Sound settings Select the ‘speaker’ symbol to access the volume, tone and further sound settings. Make changes as required: Select the ‘speaker’ symbol to adjust the volume level suitable for the environment from none (OFF) to the loudest (100%). Select the ‘music note’...

  • Page 56: Temperature Timer Setting

    eikon e1s Service and repair guide Temperature timer setting Select the ‘thermometer / timer’ symbol from the settings menu. Select the ‘timer enabled’ checkbox (green tick). Select a weekday using the up/down arrows at the bottom of the screen. Select an empty ‘time’ box (maximum of five per day) or clear an existing ‘time’...

  • Page 57: Usb Programme Downloads

    eikon e1s Service and repair guide USB programme downloads Switch the appliance OFF and open the cover to the USB port on the control panel. Plug in the USB memory stick and switch on the oven. Note: If the USB memory stick is too large, use a standard commercial adapter cable.

  • Page 58: Temperature Band Setting

    eikon e1s Service and repair guide Temperature band setting Select the ‘temperature band’ symbol. Select the required temperature band checkbox, shown by a green tick. Note: Generally, the lowest practical ‘Temp Band’ should be chosen. If the set cavity temperature falls by more than the selected temperature band value, the ready-to-cook mode and the temperature band are deactivated until the cavity reaches the preset preheat temperature.

  • Page 59: Set Screen Saver

    eikon e1s Service and repair guide Set screen saver 12. Select the ‘ENABLED’ checkbox to switch the screen saver ON or OFF and select the ‘time’ box below it. Enter a time delay on the keypad from 1 to 60 minutes before the screen saver starts.

  • Page 60: 2G. Cool-Down Procedures

    eikon e1s Service and repair guide 2G. Cool-down procedures The microwave combination oven must be cooled down properly before cleaning, servicing or repairing. Users must read Section 1H: Hazards and safety precautions during servicing and repair and Section 1I: Hazards and safety precautions when taking the appliance out of service.

  • Page 61: 2H. Cleaning Procedures

    eikon e1s Service and repair guide 2H. Cleaning procedures Daily cleaning tasks What must be cleaned? Procedure Cleaning chemicals Cavity Clean by hand with a soft cloth or Cleaning and protective chemicals paper towel approved by the manufacturer Outside of appliance Clean by hand with a soft cloth Common household stainless-steel cleaner or hard surface cleaner...

  • Page 62: Cleaning Instructions

    eikon e1s Service and repair guide Cleaning instructions Ensure the oven has been cooled down as per the instructions in Section 2G: Cool-down procedures. • Users must read Section 1G: Hazards and safety precautions during cleaning. • Wear protective glasses and protective rubber gloves during cleaning. •...
  • Page 63 eikon e1s Service and repair guide Stage 1: Clean and dry the oven and oven parts In a cooled-down oven (see section Wash all removed oven parts Use a dry clean brush to remove 2G), open the door and remove the in warm soapy water.
  • Page 64 eikon e1s Service and repair guide Stage 2: Apply oven protector (optional) Spray Merrychef protector or a Spread the protective chemical Replace the cleaned and dried Merrychef approved protector lightly onto all internal surfaces, cook plate. onto a clean sponge. avoiding the roof (jet plate) and door seal.

  • Page 65: End Of Day Operations

    eikon e1s Service and repair guide Stage 4: Cure protective chemical (if oven protector applied) Switch ON the appliance using Preheat the cavity. Once The protective chemical turns the on/off button. reaching the preset operating light brown when cured and the temperature it will take about oven is ready to be used again.

  • Page 66: 2J. Warranty Information And Contacting Customer Services

    The warranty does not cover damage resulting from improper setup, installation, use, cleaning, use of cleaning chemicals, servicing or repair. Required information Please have the following appliance data to hand when contacting Welbilt customer service: Serial number of your appliance •...
  • Page 67 eikon e1s Service and repair guide Section 3: Service and Repair...

  • Page 68: Technical Data Summary

    eikon e1s Service and repair guide Technical data summary Dimensions and weight Size and weight (without packaging) Width of appliance = 406.4mm (16”) • Total depth with door open = 806.9mm (31.8”) • Depth with door closed = 538mm (21.2”) •...

  • Page 69: Dimensional Drawings

    eikon e1s Service and repair guide Dimensional drawings Front view (door closed) Cavity dimensions (door closed) View from the top (door closed) View from the right-hand side (door open) Figure 3.5: e1s dimensions with doors open and closed...

  • Page 70: Diagnostics

    eikon e1s Service and repair guide Diagnostics Checking the condition of your appliance Servicing procedure: overview Disconnect/isolate the appliance from the power supply. Check the appliance is correctly installed as described in the “Installation” section of this manual. Visually check the cleanliness/condition of the power supply/cable/gland, casing, cavity and door of the appliance for signs of wear, damage, distortion etc.

  • Page 71: Errors And Diagnostics

    eikon e1s Service and repair guide Functions of the Service Mode Once in ‘Service Mode’, you can do the following by selecting the relevant option on screen: Check the ‘Error Log’ for details of any logged appliance errors. Check the ‘Oven Counters’ to find the usage of components and the controls area temperature within the cabinet.
  • Page 72 eikon e1s Service and repair guide Viewing the Error Log Enter service mode and select ‘Error Log’ to display a listing of oven component errors. Scroll down the list (if necessary) and select an error from the list to display individual records. Note: The ‘Failure’...
  • Page 73 eikon e1s Service and repair guide Copying error messages onto USB sticks Open the cover of the USB port 10. Select ‘Files to USB’ on the USB Enter settings menu select the and insert the USB memory stick screen. ‘USB’ symbol. The USB screen into the slot.

  • Page 74: Health Checks Of Components

    eikon e1s Service and repair guide Oven counters The Oven Counters option in service mode is used to to display the oven component usage. This information can be requested by service and manufacturer engineers to give indication of component life expectancy. In Service Mode, select ‘Oven Counters’...
  • Page 75 eikon e1s Service and repair guide Check oven door Open the oven door. • Check the colour of the door symbol changes from • green to red on the display to check the door microswitch circuit is operating. Place door spacers onto the oven door (refer to •...
  • Page 76 eikon e1s Service and repair guide Check magnetron Select the magnetron and check it is operating correctly. Place a microwave safe container of water into the cavity, and close the oven door. Select the magnetron to test the current draw at maximum output, this will time-out after 30 seconds.
  • Page 77 eikon e1s Service and repair guide Touchscreen calibration Should the touchscreen behave in an inconsistent manner, the touchscreen can be re-calibrated. Apply continuous light pressure to the screen while switching the appliance on. Continue to hold until the progress bar has completed.

  • Page 78: Fault Finding

    eikon e1s Service and repair guide Fault Finding There are many error codes that the system may display, depending on the cause of the problem and the parts associated. The tables below list the error codes that may be displayed with their meaning and the system’s response to the errors.
  • Page 79 eikon e1s Service and repair guide Error Error Condition Description Trigger Possible Causes System Response Action Code E 110 SRB version SRB firmware The QTS has found Firmware update Display error message Ensure firmware is conflict version that the firmware has been carried out until system is power up to date.

  • Page 80: 3D. Tests

    eikon e1s Service and repair guide 3D. Tests All service engineers must familiarise themselves with the information in Section 1: Safety. before using this Service and Repair Guide to carry out tests. Test types The following tests can be performed by service engineers: Components test with a Portable Appliance Tester (PAT) •...

  • Page 81: Testing Selected Components (Casing Mounted)

    eikon e1s Service and repair guide Testing selected components (casing mounted) Microwave Power test: Measuring the microwave power output of the magnetron(s) Check and ensure that the appliance is cool before starting this test. The power output is established under IEC 705 standard method which is only workable in laboratory controlled conditions.

  • Page 82: Microwave Leakage Test

    eikon e1s Service and repair guide Microwave Leakage test Follow these instructions when measuring: Make sure that the survey meter you are using has been calibrated and is suitable for measuring frequencies • of 2,450 MHz. Do not exceed meter full scale deflection. The leakage meter should initially be set to the highest scale, then •...

  • Page 83: Temperature Control Test: Measuring The Cavity Temperature

    eikon e1s Service and repair guide Temperature Control test: measuring the cavity temperature Re-calibrating the temperature sensor / thermocouple with the SRB is normally only required when the thermocouple has been replaced or the appliance is under or over cooking. Place the probe of a temperature reader on the metal plate in the centre of the oven cavity and close the door.
  • Page 84 eikon e1s Service and repair guide If the temperature reading is unstable: Disconnect and isolate the appliance from the electricity supply. Take protective measures to ensure the power cannot be switched on again. Allow the appliance to cool down. Remove the side and top panels of the casing. Check the cavity temperature sensor wire and connections.

  • Page 85: Recommission Test

    eikon e1s Service and repair guide Recommission test The Recommission Tests are performed following the completion of a service or repair to ensure that the appliance is working correctly before handing back to the customer. It is not necessary to perform this test upon initial installation.

  • Page 86: Commissioning The Oven After Service/Repair/Testing

    eikon e1s Service and repair guide Commissioning the oven after service/repair/testing Complete the following checks after the oven has been serviced/repaired/tested before connecting to the mains electricity power supply: All internal electrical connections are correct (see Error! Reference source not found. in Section 3G). All wiring insulation is correct and is not touching any sharp edges.

  • Page 87: High Voltage Components (Casing Removed)

    eikon e1s Service and repair guide High voltage components (casing removed) High Voltage Transformer test Ensure the following requirements have been met before starting the test: The appliance has been disconnected from the power supply and protective measures have been taken to •...
  • Page 88 eikon e1s Service and repair guide High Voltage Capacitor test Ensure the following requirements have been met before starting the test: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.

  • Page 89: Mains Voltage Components (Casing Removed)

    eikon e1s Service and repair guide High Voltage Magnetron test Ensure the following requirements have been met before starting the test: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.
  • Page 90 eikon e1s Service and repair guide Once the condition that caused the error state has been resolved, the LED will take 10 seconds to recover. LED flashes Warning Type Warning Condition Recover Condition Over voltage Input power voltage >270V Input power voltage < 238V Under voltage Input power voltage <...

  • Page 91: Firmware Updates

    eikon e1s Service and repair guide Firmware updates There are three firmwares required for the e1s: QTS, SRB and Icon. All firmwares are pre-installed but may require updating as per instruction from the manufacturer or as part of hardware replacement. Firmwares are updated by loading the required files to a USB memory stick and then downloading this information to the appliance using the USB memory stick slot on the oven.
  • Page 92 eikon e1s Service and repair guide Enter the password and select the green check mark. Select the USB symbol from the Settings menu. Select from the USB screen ‘Firmware’ (for QTS and SRB updates). Install updates by selecting the correct files. Updates should be installed in this order: SRB update –...
  • Page 93 eikon e1s Service and repair guide SRB firmware update When you select Firmware, the current QTS (Quick Touch Screen) and SRB (Smart Relay Board) firmware versions are displayed at the top left of the screen. Select the ‘SRB’ file with the correct file version number. Note: A tinted band over a file name indicates the file is not valid for your oven.
  • Page 94 eikon e1s Service and repair guide QTS firmware update Select the ‘QTS’ file with the correct file version number. Note: A tinted band over a file name indicates the file is not valid for that appliance. Check if the file information shown is correct before selecting OK. If not, select ‘X’...
  • Page 95 eikon e1s Service and repair guide Automatic updates using Autoupd.ATE files Load the USB stick with the Autoupd.ATE file. Copy the following firmware files to the ROOT directory of the USB memory stick: QTS-eX-XXX-VX.X.XX.BIN • SRB-eX_X_X_XXX.BIN • VX-APP-eX.CBR • Autoupd.ATE •...
  • Page 96 eikon e1s Service and repair guide The file starts downloading. The CBR file is checked and the download progress from the USB memory stick is displayed followed by the update status and confirmation screens. The QTS, SRB and Application Icon files then download automatically showing the progress, status and reboot confirmation screens for each file update.
  • Page 97 eikon e1s Service and repair guide Confirming the firmware update After an update of the appliance firmware certain files are copied back to the USB memory stick. You can check if the file transfer was successful with the following procedure: Load the files from the USB memory stick to a computer.
  • Page 98 eikon e1s Service and repair guide Select the USB symbol. Open the cover to the USB port and insert the USB memory stick into the slot. Note: The USB memory stick may take several seconds to load before the screen will respond. Do not remove the USB memory stick until the process is complete.
  • Page 99 eikon e1s Service and repair guide Check the file information shown is correct before selecting OK. If not, select ‘X’ and locate the correct file. When completed, select menu file to load the cooking profiles. Once the cooking profiles are loaded the appliance restarts. 10.

  • Page 100: Replacing Components

    eikon e1s Service and repair guide Replacing components Safe working when replacing appliance parts All service engineers must familiarise themselves with the information in Section 1: Safety, before using this Service and Repair Guide and carrying out tests. Before starting service / repair work, it is essential that you familiarise yourself with the all the rules and hazard warnings specified and follow the instructions given.
  • Page 101 eikon e1s Service and repair guide Live components Risk of electric shock from live parts When the covers of the microwave combination oven are removed, there is a risk of electric shock from touching live parts. Make sure that any work on the electrical system is performed solely by a qualified electrician from an •...

  • Page 102: Overview Of Parts

    eikon e1s Service and repair guide Overview of parts ⑪ ① ⑫ ② ⑬ ③ ⑭ ④ ⑮ ⑤ ⑯ ⑥ ⑰ ⑦ ⑱ ⑧ ⑲ ⑨ ⑳ ⑩ The exact position of the parts and components may vary depending on the version of the oven that you have purchased.
  • Page 103 eikon e1s Service and repair guide Component List Item Name Function Front panel The front panel houses the touch screen and the QTS assembly. Smart Relay Board (SRB) The SRB controls all electrical oven components. Stirrer Motor A stirrer motor turns a stirrer distributing microwave energy in the cavity. Diode (high voltage) The diode completes the magnetron circuit for required high voltage.

  • Page 104: Removing / Fitting The Casing

    eikon e1s Service and repair guide Removing / fitting the casing Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.

  • Page 105: Removing / Fitting The Door Assemble And Door Seal

    eikon e1s Service and repair guide Removing / fitting the door assembly and door seal Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to •...
  • Page 106 eikon e1s Service and repair guide Removing and fitting door seal Place a stanley knife underneath the door seal and go all the way to break the seal. Ensure you do all four sides avoiding the metal clips on each corner. Gently pull the metal clip out of each corner and lift off the door seal Remove excess sealant using the stanley knife or similar to make the surface as flat as possible and then clean the inner surface area wiping...
  • Page 107 eikon e1s Service and repair guide Refitting the door Keeping the removed door flat at 90 degrees to the oven, push the two metal hinges inside the available slots at the bottom of the oven. You should feel the hinges fiitting in place. Close the appliance door.

  • Page 108: Replacing A Magnetron

    eikon e1s Service and repair guide Replacing a magnetron Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.
  • Page 109 eikon e1s Service and repair guide Preparing a spare magnetron The spare magnetron comes with four pressed bolts. Remove the bolts before fitting the magnetron to the oven. Note: The bolts can be removed by knocking them out of the tabs with a •...
  • Page 110 eikon e1s Service and repair guide Carefully remove the cooling duct so as not to pull on the cables. Remove the four M8 nuts from the magnetron base. The magnetron can then be removed by lifting the magnetron body. Fitting a magnetron Follow the steps in the reverse order to fit a spare magnetron.

  • Page 111: Replacing The Cooling Fan

    eikon e1s Service and repair guide Replacing the cooling fan Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.

  • Page 112: Replacing The Qts (Quick Touch Screen) Assembly

    eikon e1s Service and repair guide Unplug the door microswitch connections on the left side of the appliance. Loosen the M7 hex nut to free the metal bracket holding the cooling fan. The cooling fan can then be removed by lifting upward and sliding out on the left side of the appliance.
  • Page 113 eikon e1s Service and repair guide Removing the QTS assembly Disconnect all cables connecting the QTS assembly. Unfasten the M5.5 hex head flange bolt that fixes the front panel to the appliance body. Remove the top front panel (including the touch screen and QTS assembly) from the frame of the casing by lifting upward and towards the front of the appliance.

  • Page 114: Replacing The Srb (Smart Relay Board)

    eikon e1s Service and repair guide Replacing the SRB (Smart Relay Board) Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again.

  • Page 115: Replacing The Touchscreen Overlay

    eikon e1s Service and repair guide Fitting the SRB Follow the steps in the reverse order to fit the SRB. • Reconnect all electric connections to the SRB. • For details see SRB circuit board in Section 3G. (1) = Thermocouple connector (2) = Personality Module Ensure the thermocouple negative (-) connection (white) and positive (+) connection (green) are fitted the correct way round or the oven temperature readings will be wrong.

  • Page 116: Adjusting The Door Microswitches

    eikon e1s Service and repair guide Adjusting the door microswitches Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.
  • Page 117 eikon e1s Service and repair guide Release the adjusting screws and move the backplate until microswitch SW3 just activates. Then secure all screws. Open the appliance door to replace the green 2mm spacers with red 4mm spacers and close the door. Slacken the pivot screw using a M7 hex socket wrench.

  • Page 118: Replacing The Impinger Plate

    eikon e1s Service and repair guide Replacing the impinger plate Requirements and tools Check that the following requirements have been met: The appliance is cool • Tools required – none • Removing the impinge plate The impinger plate rests on brackets in the upper part of the cavity. To assist removal, a larger hole is provided at the front of the impinger plate big enough to insert a finger.

  • Page 119: Replacing The Stirrer

    eikon e1s Service and repair guide Replacing the stirrer Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.
  • Page 120 eikon e1s Service and repair guide To remove the stirrer from the motor spindle, the motor must be prevented from moving. This is most easily achieved by holding one of the white cogs located below the motor. The stirrer can then be removed by turning clockwise. Remove the remains of the old gasket before fitting the new impincher plate (comes with gasket).

  • Page 121: Replacing The Stirrer Motor

    eikon e1s Service and repair guide Replacing the stirrer motor Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.

  • Page 122: Replacing The Convection Fan Motor And Heating Element

    eikon e1s Service and repair guide Replacing the convection fan motor and heating element Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to •...
  • Page 123 eikon e1s Service and repair guide Removing the convection motor and heating element To remove the convection motor assembly, the silver insulation blanket must be peeled back to give access to the 10 x M7 nuts located at the positions indicated in this picture. Note: Any high-temperature tape compromised when peeling back the insulation will need to be replaced.

  • Page 124: Replacing A Transformer (High Voltage)

    eikon e1s Service and repair guide Replacing a transformer (high voltage) Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to • ensure the power cannot be switched on again. The appliance is cool.
  • Page 125 eikon e1s Service and repair guide Unfasten two M8 nuts and washers to remove the transformer. The transformer is heavy. Wear safety shoes to protect your feet from a transformer falling down. Fitting a transformer (high voltage) Follow the steps in the reverse order to fit the high voltage transformer(s). If the electric connections have not been restored properly this may lead to malfunction/damage of the oven.

  • Page 126: Replacing The Convection Fan Motor Speed Controller

    eikon e1s Service and repair guide Replacing the convection fan motor speed controller Requirements and tools Check that the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to •...

  • Page 127: Overview Of Further Components

    eikon e1s Service and repair guide Overview of further components Before carrying out any procedure on the parts described below, ensure the following requirements have been met: The appliance has been disconnected from the power supply and protective measures have been taken to •...
  • Page 128 eikon e1s Service and repair guide Cavity high limit The cavity thermostat is located besides the cooling duct on the left hand side of the oven (when looking at the oven from the rear). It continuously measures the temperature of the cavity and switches the oven off should overheating occur.

  • Page 129: 3G. Circuit Boards And Diagrams

    eikon e1s Service and repair guide 3G. Circuit boards and diagrams QTS circuit board assembly ④ ⑤ ⑥ Item Name Power, Run, P-Bus, C-Bus X6 – speaker X5 – USB socket X4 – Communications to X11 – Screen backlight X13 – Touch pad X9 –...

  • Page 130: Srb Circuit Board

    eikon e1s Service and repair guide SRB circuit board Item Name ① X1 – 24V supply from low voltage transformer ② X8 – Cooling fan X17 – Not used ③ X9 – Mains output, convection fan controller ④ X103.1 – Mains output to low voltage transformer ⑤...

  • Page 131: Circuit Diagrams

    eikon e1s Service and Repair Guide Circuit diagrams...
  • Page 132 Welbilt is one of the world’s largest manufacturers and suppliers of professional gastronomic appliances. We supply our customers with energy-saving, reliable and market-leading technologies from a single source. If you want to find out more about Welbilt and its company brands, please visit us at www.welbilt.com Welbilt UK Limited, Ashbourne House, The Guildway, Old Portsmouth Rd, Guildford GU3 1LR, United Kingdom +44 1483 464 900;...

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