Welbilt Merrychef eikon e2s Service & Repair Manual
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Welbilt Merrychef eikon e2s Service & Repair Manual

Welbilt Merrychef eikon e2s Service & Repair Manual

Microwave combination oven
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eikon e2s
®
Service & Repair manual
Part number: 32Z3923
Microwave combination oven
Read instructions before use
Models: 50Hz & 60Hz
Language: English
Date: Feb 2021/v1

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Summary of Contents for Welbilt Merrychef eikon e2s

  • Page 1 eikon e2s ® Service & Repair manual Part number: 32Z3923 Microwave combination oven Read instructions before use Models: 50Hz & 60Hz Language: English Date: Feb 2021/v1...

  • Page 2: Table Of Contents

    1 General information Back to contents > _______________________________________________________________________________________________________________________________ Section no. Page no. General information Declaration of conformity Environmental protection Important information Identifying your microwave combination oven About this service and repair manual For your safety Basic safety code Requirements to be met by personnel and working positions Personal protective equipment Intended use of the microwave combination oven Warning signs on the microwave combination oven...
  • Page 3 1 General information Back to contents > _______________________________________________________________________________________________________________________________ Removing / fitting the casing Removing / fitting the door assembly Replacing the door gasket Replacing a magnetron Replacing the cooling fan Replacing the QTS (Quick Touch Screen) assembly Replacing the SRB (Smart Relay Board) 6.10 PM (Personality Module) replacement 6.11...

  • Page 4: General Information

    Please see the Installation and User Manual for further details. Quality and environmental management Welbilt UK Limited (Sheffield) employs a quality management system and a certified environmental management system. Please see the Installation and User Manual for further details.

  • Page 5: Identifying Your Microwave Combination Oven

    1 General information Back to contents > _______________________________________________________________________________________________________________________________ Identifying your microwave combination oven Position of nameplate The nameplate is located on the rear of your microwave combination oven. ® Model number eikon Item Number Elements of the item Label Meaning Model Power output convection 2200W...

  • Page 6: About This Service And Repair Manual

    1 General information Back to contents > _______________________________________________________________________________________________________________________________ About this Service and Repair manual Purpose This service and repair manual is intended for all trained Merrychef service technicians who work with the microwave combination oven and provides them with the necessary information for carrying out servicing and repair work properly and safely.

  • Page 7: For Your Safety

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2 For your safety Purpose This chapter provides you with all the information you need in order to work with the microwave combination oven safely without putting yourself or others at risk. This is a particularly important chapter that you must read through carefully.

  • Page 8: Requirements To Be Met By Personnel And Working Positions

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Damage to or loosening of hinges and latches. § Evidence of dropping or abuse. § Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity and connections.
  • Page 9 2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Dismantling the appliance (taking out Suitable lifting gear Protective gloves of operation) Forklift truck or pallet truck Safety boots Hard hat (e.g., when heavy loads are being lifted, working overhead) Operation Activity Materials used Personal protective equipment...

  • Page 10: Intended Use Of The Microwave Combination Oven

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Intended use of the microwave combination oven The microwave combination oven must only be used for the purposes specified below: The microwave combination oven is designed and built solely for cooking different foodstuffs in containers approved §...

  • Page 11: Warning Signs On The Microwave Combination Oven

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Warning signs on the microwave combination oven Warning and safety signs Safety symbols Mandatory warning signs The following safety symbols be attached to the microwave The following warning signs / notices must be attached to combination oven in the area indicated so as to be easily the microwave combination oven and optional accessories visible at all times.

  • Page 12: Safety Devices

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Safety devices Meaning The microwave combination oven has a number of safety devices to protect the user from hazards. It is absolutely essential that all safety devices are fitted and in working order when operating the appliance. Item Safety device Function...

  • Page 13: Summary Of Hazards

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Summary of hazards General rules for dealing with hazards and safety precautions The microwave combination oven is designed to protect the user from all hazards that can reasonably be avoided by design measures.

  • Page 14: Safe Working When Working On The Appliance

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Safe working when working on the appliance For your safety Before starting work, familiarize yourself with the hazards described in section 3.6 ‘For your safety’ in the eikon ® Installation and User manual. Eligibility of personnel for working on the appliance Only qualified Merrychef trained personnel from a Merrychef authorized service company are permitted to set up and work on the appliance.
  • Page 15 2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Safety hazard: electrical power Danger Where or in what situations does the hazard arise? Preventative action A risk of electric Live parts: Work on the electrical system must only shock be performed by qualified electricians Under covers from an authorized customer service Under the control panel...
  • Page 16 2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Safety hazard: moving heavyweights Danger Where or in what situations does the hazard arise? Preventative action Risk of injury from When moving the appliance Use a forklift truck or pallet truck to overstressing your place the appliance in the installation body...

  • Page 17: Hazards And Safety Precautions When Taking The Appliance

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2.11 Hazards and safety precautions when taking the appliance out of service Safety hazard: electrical power Danger Where or in what situations does the hazard arise? Preventative action A risk of electric From live parts Work on the electrical system must only shock...

  • Page 18: Safe Working During Electrical Installation

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2.12 Safe working during electrical installation For your safety Before starting work, familiarize yourself with the hazards described in section 3.7 ‘For your safety’ in the eikon ® Installation and User manual. Eligibility of personnel for the electrical installation Only electricians qualified under the terms of EN 50110-1 and from an authorized service company are permitted to perform work on electrical equipment.

  • Page 19: Electrical Installation Requirements

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2.13 Electrical installation requirements Circuit Breakers (MCB ~ Miniature Circuit Breakers) For over current protection, a Type ‘D’ circuit breaker (designed specifically for this type of equipment) must be fitted, as a recommend alternative a higher rated type ‘C’...
  • Page 20 2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Please refer to electrical installation data for other country specific models. Equipotential bonding An equipotential bonding point is provided on the rear panel of the appliance for independent earth (not fitted to US models).

  • Page 21: Safe Working When Testing Components

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2.14 Safe working when testing components For your safety when testing oven components Before starting oven tests, it is essential that you familiarize yourself with the rules and hazard warning in this chapter and follow the instructions given.
  • Page 22 2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Microwave emissions WARNING Risk of burns from microwave emissions Do not become exposed to emissions from the microwave generator or parts conducting microwave energy. § Never operate an appliance that has failed the "Microwave leakage test". §...

  • Page 23: Process For Discharging The Capacitors

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2.15 Process for discharging the capacitors: Tools required Capacitor Discharge Probe Insulated Gloves Voltage tester—Checker Process for carrying out modification / change: 1. Cool down the oven then isolate from the mains supply by 2.

  • Page 24: Safe Working When Replacing Appliance Parts

    2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ 2.16 Safe working when replacing appliance parts For your safety when replacing appliance parts Before starting service / repair work, it is essential that you familiarize yourself with the rules and hazard warning in this chapter and follow the instructions given.
  • Page 25 2 For your safety Back to contents > _______________________________________________________________________________________________________________________________ Hot surfaces WARNING Risk of burns from high temperatures inside the cavity and on the inside of the appliance door. You may get burnt if you touch any of the interior parts of the cooking chamber, the inside of the appliance door or §...

  • Page 26: Technical Data

    3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ 3 Technical data Technical data charts Dimensions and weights Width Including packaging [mm] 21.1 [in] Appliance without packaging [mm] 14.0 [in] Height Including packaging [mm] 33.5 [in] Appliance ("Classic" exterior) without packaging [mm] 24.4 [in]...
  • Page 27 3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ Regulatory standards compliance Degree of protection IPX0 Noise emission max. 70 [dBA] Approval marks Tested safety CE, CB (IEC) Hygiene UL-EPH (NSF/ANSI 4) Technical data, checks and verification Description Features Function Rating Trouble shooting Fuse Glass...
  • Page 28 3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ Description Features Function Rating Trouble shooting EMI Filters Filters unwanted For use on the main 250VAC 20A @ 40 Check for signs of (Mains Filters) frequency noise from supply feeding all Line (L&N) or Load overheating or dis- interfering with various branch circuits.
  • Page 29 3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ Description Features Function Rating Trouble shooting Cooling Fan Capacitor Connects to the cooling Stores and discharges 400V, -25/70 C, 1.5µF Check for proper fan using a terminal voltage to start and run microfarads.
  • Page 30 3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ Description Features Function Rating Trouble shooting Convection Motor IP Thermal Switch within Breaks control safety Switched Voltage; Check continuity the Convection Motor. circuit control voltage 12VDC through switch. Two grey wires. signalling SRB to de- Resistance if open O.L., Check SRB connections Normally Closed,...
  • Page 31 3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ Description Features Function Rating Trouble shooting Check Live supply potential at heater terminals Check Error Log for E102 & E116 events Magnetron(s) One Magnetron fitted Provides microwave 1000W per magnetron, Follow all test as standard, two energy, 0 to 100%, 7-8A at 230VDC.

  • Page 32: Dimensional Drawings

    3 Technical data Back to contents > _______________________________________________________________________________________________________________________________ Description Features Function Rating Trouble shooting Green (or Red on some temperature to verify models) is negative, proper reading. and White (or Yellow Check for opens, shorts on some models) is or grounds. positive.

  • Page 33: Accessing The Easytouch ® Screen

    4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ 4 Accessing the easyTouch screen ® Purpose Instruct the user regarding all safety-related functions and devices. Instruct the user in how to operate the appliance. Main menu screen Appearance The buttons and what they do Button Meaning...

  • Page 34: The Keyboard Screen

    4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ The easyTouch ® screen display ® 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. Full operational details can be found in the Installation and User Manual.

  • Page 35: Cleaning Procedures

    4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ Cleaning procedures You will need Cleaning materials: PPE: non-abrasive nylon scrub pad § heat proof gloves § cleaning cloths § IMPORTANT protective rubber § Merrychef oven cleaner (or § Cool down the oven before gloves Merrychef approved cleaning...

  • Page 36: Using A Usb Stick

    4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ Using a USB stick Purpose of the USB cover The USB cover protects the USB port so that no water vapour can get into the control electronics during cooking or cleaning. During cooking and cleaning, there must not be a USB stick inserted and the USB port must be closed by the cover.

  • Page 37: Firmware Updates

    4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ Firmware updates Overview Firmware updates There are three firmware files required for the e2s: QTS, SRB and Icon. All firmware files are pre-installed but may require updating as per instruction from the manufacturer or as part of hardware replacement. Firmware files 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 38 4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ Automatic updates using autoupd.ate files 1. Load the USB stick with the autoupd.ate file. Copy the following firmware files to the ROOT directory of the USB memory stick: QTS-e2s-Vxxx-xxx.xxx.bin xxx.xxx.xxx_e2s_SRB_APP.bin Vx-APP-e2s.cbr Menu.cbr (if required)
  • Page 39 4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ PM (Personality Module) replacement - firmware update The personality module on the SRB contains the SRB firmware and error log file The personality module on the QTS contains the QTS firmware, serial number of your appliance, temperature calibration, cooking profiles, application icons and the recipe images.
  • Page 40 4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ QTS firmware update 1. Select the ‘QTS’ file 2. Check if the file 3. The file update progress is 4. Once rebooted, check if with the correct file information shown is displayed.
  • Page 41 4 Accessing the easyTouch ® screen Back to contents > _______________________________________________________________________________________________________________________________ APPS (icons) update 2. Select the .CBR 3. Check if the file 4. The file update progress is 1. Select from the USB file (e2s/icons) information shown is displayed. When the application screen ‘’Menu to oven’...

  • Page 42: Service Information

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 5 Service information Service procedure Servicing procedure: overview Disconnect/isolate the appliance from the power supply. Check the appliance is correctly installed as described in the eikon e2s Installation and User manual. Ò Visually check the cleanliness/condition of the power supply/cable, casing, cavity and door of the appliance for signs of wear, damage, distortion etc.
  • Page 43 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Enter service mode 1. On start up, tap the top right of 3. Select the spanner symbol. 2. Enter the authorised user the splash screen to bypass password, for example, preheat of the cavity. "MANAGER"...
  • Page 44 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Functions of the service mode 3. Check the operational 1. Check the "Error log" for details of 2. Check the "Oven counters" to find performance of the main any logged appliance errors. (Log the usage of components and the components using "Visual view".

  • Page 45: Errors And Diagnostics

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Errors and diagnostics Error messages 1. A description of the type of error is shown. Check for a number following ‘ERROR:’ and refer to the error codes (“Fault finding” within section 5.3 of this manual) for more details.
  • Page 46 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Error log 4. Select 1. Enter service mode and select 2. Scroll down the list 3. Error details include: backspace to ‘Error log’ to display a listing of (if necessary) and select an component description, error oven component errors &...
  • Page 47 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Visual view 1. Select 'visual view' to 2. Select a component symbol 3. Remove the air filter at the front of the oven. check the main to switch on (red). The colour of the air filter symbol on the display components of the Select again to increase the should change from green to red indicating that the...

  • Page 48: Fault Finding

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 8. Select the heater, it increases to a maximum cavity temperature of 250 C and then continually cycles, maintaining this temperature. Selecting the heater again will turn it off. The convection fan automatically runs at 50% by default (the fan speed can be manually altered up to 100%).
  • Page 49 Merrychef unit while the panels are off. Further information can be found at: merrycheftechnical.com If in doubt, please contact your Merrychef/Welbilt technical support team for support. Note: The error log can be accessed directly during an error condition, without switching the oven off and on, by selecting the settings icon.
  • Page 50 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Error Problem Solution forgets to should all be nicely fitting as it is part of the design to ensure proper air flow and clean the front cooling. filter. The error will remain until the board temperatures drop below 50 Check the board temperatures in the error log and in visual view (in service mode).
  • Page 51 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Error Problem Solution E108: QTS PM The PM code is Check the PM chip is correctly in place on the QTS board. FAILED incorrect for The QTS has a dedicated part number on the chip which is unique for each eikon the QTS model.
  • Page 52 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Error Problem Solution (Heater off on draw was <1A Ensure you counter hold the rear bolt of the element connections before tightening request) on the heater the front nut on the element. circuit.
  • Page 53 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Error Problem Solution E105: Mains supply Mains supply frequency is ±2% from nominal or interference e.g., an internal FREQUENCY frequency is microwave leak? Most of the issues found here are related to an unstable power SUPPLY ±2% from supply of the building, i.e., Generators.
  • Page 54 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Error Codes generated during recommission test: E089: Recommission Fail Cooling Fan User input ‘X’ (to confirm not working) E090: Recommission Fail Convection Fan User input ‘X’ (to confirm not working) E091: Recommission Fail Turntable No user input registered (not applicable to e2s) E116: Heater Failed (E092) <1A current draw recorded, see E116 for further details...

  • Page 55: Safe Working When Testing Components

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Safe working when testing components For your safety when testing oven components Before starting oven tests, familiarize yourself with the rules and hazard warnings in section 2 ‘For your safety’, specifically section 2.14 ‘Safe working when testing components’. Requirements Equipment required for testing the appliance HV Capacitor discharge tool...
  • Page 56 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Earth/insulation test 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. 1.
  • Page 57 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 6. Select ‘Microwave power test’ from the service mode tests (microwave power 100% for 63 seconds, convection fan at 10%). 7. When the countdown has finished, remove the container from the cavity. Immediately stir with a plastic implement and measure the water temperature.
  • Page 58 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 6. When the microwave leakage test stops after 30 seconds, change the water and re-select the test to continue. 7. Select the red ‘X’ on the display to stop the test at any time. 8.
  • Page 59 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 3. Select 250 C oven temperature. If there is no preheat temp programmed appropriate for the oven test, a new temperature must be programmed into a spare location. (250°C) 4. Wait for the oven to reach the preheat temperature of 250 5.

  • Page 60: Recommissioning Test

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 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. If the wire and connections are correct and in good condition, replace the cavity temperature sensor (see Section 6.16.

  • Page 61: High Voltage Components (Casing Removed)

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Commissioning the oven after service/repair/testing Complete the following checks after the oven has been Before finishing a service call, recheck the serviced/repaired/tested before connecting to the mains following points: electricity power supply: Run the recommission tests to ensure the oven All internal electrical connections are correct (see "Electrical is functioning correctly and the touch screen is...
  • Page 62 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 208 – 240V Transformer • 4. High Voltage winding, approx. 5. Filament winding between 3. Mains winding between tags, 47 Ω. terminals, less than 1 Ω. approx.; 0 to 200/208; 0.5 Ω 0 to 220;...
  • Page 63 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ DANGER High voltages and significant currents are present at the high voltage capacitor and HV Circuit. It is very dangerous to work near this part when the oven is on. NEVER make any electrical measurements on the high voltage circuits, including the magnetron filament, whilst the oven is connected to the mains power supply.

  • Page 64: Mains Voltage Components (Casing Removed)

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Mains voltage components (casing removed) Convection fan: motor The convection fan motor is a 3-phase AC motor having a maximum speed of approximately 7000 rpm (approximately 5200 rpm 16A/13A ovens) controlled by a motor speed controller. The windings are thermally protected.
  • Page 65 5 Service information Back to contents > _______________________________________________________________________________________________________________________________ Convection fan: motor and motor speed controller tests 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 §...

  • Page 66: Optional Components (Casing Removed)

    5 Service information Back to contents > _______________________________________________________________________________________________________________________________ 5.10 Optional components (casing removed) Kitchen Connect Control Module (KCCM) Optional Ethernet / WIFI communications module for remote connectivity through KitchenConnect. Installed on the inside of the rear panel and connected to the SRB, X12 & X13. KCCM Module LED Colour Information...

  • Page 67: Replacing Components

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6 Replacing components Safe working when replacing appliance parts For your safety when replacing appliance parts Before starting service / repair work, it is essential that you familiarize yourself with the rules and hazard warnings specified in section 2 ‘For your safety’, specifically section 2.16 ‘Safe working when replacing appliance parts’.
  • Page 68 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ View: right hand side View: rear side _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 69 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Component list Item Name Function Front panel The front panel houses the touchscreen QTS assembly and the on\off switch Door handle Open the oven door using the door handle. Never use the door handle to lift the appliance.

  • Page 70: Removing / Fitting The Casing

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Removing / fitting the casing Tools required M5.5 hex socket wrench Requirements 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 §...

  • Page 71: Removing / Fitting The Door Assembly

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Removing / fitting the door assembly Component Requirements 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 72 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6. Turn the door assembly 7. Wearing gloves, remove 8. Unfasten the four M8 hex bolts (two on each side) around. the two thermal insulation to detach the door handle. pads located between the Slide the cover panel away springs attached to the door from the door handle to...

  • Page 73: Replacing The Door Gasket

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Replacing the door gasket Requirements Tools required Check that the following requirements have been met: Suitable gloves The appliance has been disconnected from the power supply and protective § Stanley / retractable knife measures have been taken to ensure the power cannot be switched on again.

  • Page 74: Replacing A Magnetron

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Replacing a magnetron Component The magnetron(s) is/are located on top of the cavity and The 2000W e2s variant comprises two magnetrons located on the left and right hand sides of the cooling duct. is/are fixed to the cooling duct and the cavity roof.
  • Page 75 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Preparing a replacement magnetron 1. The new magnetrons come with four pressed studs for fixing. These studs need to be removed before fitting the magnetron to the oven. NOTE: The studs can be removed by knocking them out of the tabs with a hammer.

  • Page 76: Replacing The Cooling Fan

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ NOTICE: When detaching the cooling duct be careful not to damage the exhaust pipe leading into the duct, the cavity overheat thermostat or the LV transformer If removing the cooling duct from the oven the cavity overheat thermostat should be disconnected from the bracket using a 14mm socket or spanner and the wires should be disconnected 5.

  • Page 77: Replacing The Qts (Quick Touch Screen) Assembly

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Removing the cooling fan 1. Unplug the electrical 2. Loosen the two M7 hex nuts each securing 3. Twist and remove the connection of the cooling fan one arm of the sheet metal bracket which cooling fan via the left hand on the right hand side of the holds the cooling fan.

  • Page 78: Replacing The Srb (Smart Relay Board)

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 2. Slide the black facia 5mm to the left and pull forward 3. Disconnect the plug to the on/off switch board and the RJ45 communication cable & speaker cable from the QTS 4.

  • Page 79: Pm (Personality Module) Replacement

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 3. Remove the PM (Personality Module) from the SRB and place safely aside. NOTICE: Do not use tools to remove or refit the Personality Module. Fitting the SRB Follow the steps in the reverse order to fit the SRB. For details see “SRB Terminal Locations” in section 7. Refit the Personality Module (PM) removed from the old SRB to the new SRB.

  • Page 80: Replacing The Touchscreen Control D And Overlay

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ The personality module on the QTS contains the firmware, serial number of the oven, temperature calibration, cooking profiles, application icons and the recipe images. 1. Unfasten the M5.5 hex head flange bolt under the plastic front facia (Control D) 2.

  • Page 81: Adjusting The Door Microswitches/Interlocks

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6.12 Adjusting the door microswitches/interlocks Component Requirements 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 82 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 3. Release the adjusting M7 nut and move the backplate until microswitch SW3 just activates (closes). Then tighten both nuts. 4. Open the appliance door to replace the green 2mm spacers with the two red 4mm spacers. Then carefully close the door ensuring the spacers are still in position.

  • Page 83: Replacing The Stirrer Motor And Stirrer Assembly

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6.13 Replacing the stirrer motor and stirrer assembly Component Requirements 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 84 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 4. Remove the partition plate from the cavity. NOTE: The partition plate features a rubber gasket on the side pointing upwards (to the stirrer) when mounted. The rubber gasket prevents grease laden air from soiling the stirrers and needs to be intact at any time.

  • Page 85: Replacing The Convection Fan Motor

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6.14 Replacing the convection fan motor Component Requirements 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 86: Replacing A Transformer (High Voltage)

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Fitting the convection fan motor Follow the steps in the reverse order to fit the convection fan motor assembly. On replacement, ensure the rear plate is placed fully over the mounting points on the cavity before refitting and tightening the nuts, fitting new rubber gaskets when refitting the replacement motor assembly and vent pipe, ensuring the mating surfaces are clean.

  • Page 87: Removing The Convection Fan Motor Speed Controller

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Requirements 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 88: Replacing The Heating Element

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Removing/fitting the convection fan motor speed controller 3. Refit in reverse order, refitting the top securing bolt and reconnecting the cables to the convection fan motor speed controller. Ensure the wiring of the speed 1.

  • Page 89: Overview - Further Components

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6.18 Overview – further components Removable diffuser in the cavity The rear air diffuser plate in the cavity prevents large foodstuff from hitting the rear of the cavity. Loosen the bottom two M7 hex nuts and unfasten the top two M7 hex nuts to remove/refit.
  • Page 90 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Equipotential bonding connection M8 nut (not fitted to some country specific versions) Electromagnetic Compatibility (EMC) Filters Two EMC filters fitted, Heater & Microwave* Wiring connected by M7 hex nuts EMC filter to bracket by two M7 hex nuts EMC filter bracket to base plate by two M7 hex nuts, slotted in at the back.
  • Page 91 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Cavity temperature sensor (thermocouple) Cavity temperature measuring is done by a temperature sensor (thermocouple) connected to the SRB. The thermocouple is fitted in the rear of the cavity from the left hand side, sealed with a gasket and held in place by a M7 hex nut.
  • Page 92 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Mains cable entering the interior (the mains cable gland is fitted to the cable inlet of the oven at the rear of the oven base) Catalytic Converters See section 6.14 for convection fan motor assembly removal to access the catalytic converters. The upper catalyst is fitted using four M7 hex flange nuts, tightened to 2.1 Nm.
  • Page 93 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Air Filter Microswitch The air filter microswitch is located on the bottom front left hand side of the cavity frame by a M5.5 hex nut and wired directly to the SRB. Speaker The speaker is located on the top front left hand side of the cavity frame by two M7 hex nuts and...

  • Page 94: Technical Data Summary Sheet

    6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ 6.19 Technical Data Summary Sheet Fuse Ratings Component Torque Settings (Nm) Error Codes USB Assembly Touch screen released in <15 sec Door Switches Touch screen held for >5 sec 13A (*12A) Door Skin Firmware updated 1.25A Door Handle...
  • Page 95 6 Replacing components Back to contents > _______________________________________________________________________________________________________________________________ Magnetron <1W Speaker E107 Communication fault between QTS & SRB HV Transformer 0.6W* Cavity Thermocouple E108 Missing or corrupt QTS PM 57W* LV Transformer E109 Missing or corrupt SRB PM HV Transformer Capacitor 10MW Steam Vent Pipe...

  • Page 96: Circuit Boards And Diagrams

    7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ 7 Circuit boards and diagrams SRB / QTS circuit boards SRB LEDs P-Bus – irregular flashing, indicating data communication with QTS. § Run – Pulsing 1 second flash, indicating that the board has booted up. §...
  • Page 97 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ SRB terminal locations Item Name X3 – control voltage for convection fan motor speed controller. Wires 66, 67 & 68 X101 – voltage selection relay(s) coil feed. Wires 37, 38, 51 & 52. Pins 51 & 52 not used on 1000W ovens X18b –...
  • Page 98 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ QTS LEDs Power – Green LED lit to show that there is a power supply from the SRB. § Run – Green pulsing 1 second flash, indicating that the board has booted up. §...

  • Page 99: Circuit Diagrams

    7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ Circuit diagrams e2s wiring diagram 50Hz 200/230V Door switches – LV safety interlock circuit Overheat thermostats – ELV safety circuit 1000W Ovens 2000W Ovens _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 100 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 50Hz 200/230V continued To Convection Optional KitchenConnect Communications Motor KB 23D Motor Speed Controller Heater 2.2kW CHOKE 3.3mH Cavity Overheat Stat Blue Green Stirrer Motor 1 Magnetron 1 Connected to X20 Pins 1&2 On SRB Overheat Stat...
  • Page 101 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 50Hz 200/230V continued _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 102 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 60Hz 208/240V Door switches – LV safety interlock circuit Overheat thermostats – ELV safety circuit 1000W Ovens 2000W Ovens _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 103 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 60Hz 208/240V continued To Convection Motor Optional KitchenConnect Communications KB 23D Motor Speed Controller Heater 2.2kW CHOKE 3.3mH Cavity Overheat Stat Blue Green Stirrer Motor 1 Magnetron 1 Connected to X20 Pins 1&2 On SRB Overheat Stat...
  • Page 104 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 60Hz 208/240V continued _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 105 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 200V JP Model Door switches – LV safety interlock circuit Overheat thermostats – ELV safety circuit _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 106 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 200V JP Model continued _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...
  • Page 107 7 Circuit boards and diagrams Back to contents > _______________________________________________________________________________________________________________________________ e2s wiring diagram 200V JP Model continued _______________________________________________________________________________________________________________________________ Merrychef eikon ® e2s service and repair manual...

  • Page 108: Annual Pm Check Procedure For Eikon® E2S

    8 Annual PM check Back to contents > _______________________________________________________________________________________________________________________________ 8 Annual PM check procedure for eikon® e2s Task(s): Annual Technician PM check Safety information: Frequency: Annual Please adhere to all Time to complete: 1-3 hours Merrychef safety aspects Manual handling Hot liquids Electricity at all times.
  • Page 109 8 Annual PM check Back to contents > _______________________________________________________________________________________________________________________________ Task B 8. Switch the oven on and record the Serial Number. Check the firmware is correct, 9. Enter the password 10. Check the date, day 11. Press the spanner symbol update if older version is MANAGER to access and time, correct if...
  • Page 110 8 Annual PM check Back to contents > _______________________________________________________________________________________________________________________________ Planned preventative maintenance schedule for the Daily Comments Merrychef eikon ® e2s commercial combination oven months months months Item Description Commissi Operator OCIE See latest parts manual for part oning check numbers Check installation and surroundings as per installation instructions...
  • Page 111 Cleveland™, Convotherm , Crem , Frymaster ® ® ® ® ® Garland ® ® ® ® ® ® ® Bringing innovation to the table • © 2021 Welbilt UK Ltd except where explicitly stated otherwise. All rights reserved. e2s Service/RepairMan_Feb 2021...

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