Blomberg BWOS 30100 Service Manual
  1. Manuals
  2. Brands
  3. Blomberg Manuals
  4. Oven
  5. BWOS 30100
  6. Service manual

Blomberg BWOS 30100 Service Manual

Hide thumbs Also See for BWOS 30100:
Table of Contents

Advertisement

Quick Links

CONTENTS
2.3.2 Motors
2.3.3 Electric Components
BWOS 30100 SERVICE MANUAL
1

Advertisement

Table of Contents
loading

Related Manuals for Blomberg BWOS 30100

Summary of Contents for Blomberg BWOS 30100

  • Page 1: Table Of Contents

    BWOS 30100 SERVICE MANUAL CONTENTS 1. SERVICING REQUIREMENTS 1.1 HEALTH & SAFETY 1.1.1 Electrical Safety 1.1.2 Good Working Practices 1.1.3 Insulation Test 1.1.4 Sheet Metal Edges 1.2 SPECIAL TOOLS & MATERIALS 1.2.1 Tools 1.2.2 Materials 2. TECHNICAL OVERVIEW 2.1 OVEN SPECIFICATIONS 2.1.1 Oven Weight...
  • Page 2 BWOS 30100 SERVICE MANUAL 2.8 FAULT NUMBERS 2.9 OVEN SAFETY FUTURES 2.9.1 Child – Safe Locking System 2.9.2 Over Heating sensor 2.9.3 Thermostat 2.9.4 Double – Speed Thermostat 2.9.5 Safety Thermostat 3. USER MANUAL CONTROL PANEL 3.1.1 Command Keys 3.1.2 Display 3.1.3...
  • Page 3 BWOS 30100 SERVICE MANUAL 3.5.1 Convection Cavity Sequence 3.5.2 Temperature Selector 3.5.3 Using Oven Light TIME OVEN MODE OPERATION 3.6.1 To Set Time Mode 3.6.2 To Delay the Start of a Timed Mode SPECIAL FEATURE FUNCTION SABBATH MODE INSTRUCTION SETTING THE SELF-CLEANING 3.9.1 To set the Self Clean Mode...
  • Page 4 BWOS 30100 SERVICE MANUAL 5. ELECTRIC DIAGRAM 5,1 SINGLE OVEN - MULTIFUNCTION 6. EXPLODED PARTS 6.1 SINGLE OVEN 30” COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE OVEN REMOVAL COOLING FAN MOTOR SUBSTITUTION CONVECTION FAN MOTOR SUBSTITUTION RING ELEMENT SUBSTITUTION UPPER ELEMENT SUBSTITUTION...

  • Page 5: Servicing Requirements

    SERVICING REQUIREMENTS HEALTH & SAFETY Note: When servicing the BLOMBERG oven, health and safety issues must be considered at all times. Specific safety issues are listed below with their appropriate icon. These are illustrated throughout the service information to remind service people of the health and safety issues 1.1.1...

  • Page 6: Technical Overview

    BWOS 30100 SERVICE MANUAL  7mm socket  10 mm socket  12mm socket  Flexible shaft socket extension  #1 and #2 Short Phillips Screw driver  Digital power meter (Voltage – Current)  Static strap TECHNICAL OVERVIEW OVEN SPECIFICATIONS 2.1.1 Oven Weight...

  • Page 7: Serial Plate

    BWOS 30100 SERVICE MANUAL 2.2 SERIAL PLATE 2.2.1 Location The product serial number plate is located on the left side profile trim 2.2.2 Model & Serial Number The numbers printed on the plate contains the following information: 2.3 COMPONENT SPECIFICATIONS 2.3.1...

  • Page 8: Heating Elements

    BWOS 30100 SERVICE MANUAL 2.4 SYSTEM DESCRIPTION  ELECTRONIC CONTROL. The control consists of a main power board and a display board. An additional power board is derived from the main one removing the power supply parts. It has all the functions of the main one to drive the lower cavity in a double oven.

  • Page 9: Oven Model Configuration

    BWOS 30100 SERVICE MANUAL 2.5 OVEN MODEL CONFIGURATION Resistor R49, R51, R52 on the display board must be configured properly, according to the oven model, before installing the display board in the oven.  NEVER CUT RES1  CUT RES2 in SINGLE OVENS.
  • Page 10 BWOS 30100 SERVICE MANUAL  F11 Err  Ignore this message and hold [stop] and [set clock] buttons for about three seconds to start the test.  All the display elements and the buzzer turn on for about 5 seconds then the control displays ...

  • Page 11: How To Check Single Oven Hardware

    BWOS 30100 SERVICE MANUAL 2.6.2 How to check Single oven hardware  S01: oven lights.  S02: cooling fan.  S03: convection fan. (ONLY FOR CONVECTION CAVITY)  S04: check that no heating elements are energized. The double line break relay must be open.
  • Page 12 BWOS 30100 SERVICE MANUAL  S09: cooking mode selector. The display automatically shows the off position value:  tESt C00  Turn the knob clockwise and check that the values correspond to the ones in the following table: Code ENGLISH...
  • Page 13 BWOS 30100 SERVICE MANUAL  S10: temperature selector. The display automatically shows:  tESt dEF  (Default) in preset position.  Turn the knob clockwise and verify that the temperature changes between 170°f and 550°f. Verify that in clean position the display shows: ...

  • Page 14: Power Supply 208V Voltage Selection

    BWOS 30100 SERVICE MANUAL 2.6.3 Power supply 208v voltage selection Wait for the clock appears and display “12:00”, then remember to verify if the power supply in the house is 240v or 208v. 240v is selected by default, in case of 208v the control must be...
  • Page 15 BWOS 30100 SERVICE MANUAL  The drawing on the previous page explains how the electronic boards work. Each relay function is described. The connectors to sensor, potentiometers, and micro switches are also shown, to allow an easier and faster detection of possible problems.

  • Page 16: Fault Numbers

    BWOS 30100 SERVICE MANUAL Temperature Temperature Voltage 0°C 32°F 4,5V 25°C 77°F 3,5V 40°C 104°F 2,7V 85°C 185°F 105°C 221°F 0,64V 2.8 FAULT NUMBERS TO Reset assembly FAILURES, REMOVE THE CAUSE AND SWITCH THE SELECTORS IN “OFF” AND “Preset assembly” POSITIONS RESPECTIVELY.

  • Page 17: Oven Safety Futures

    BWOS 30100 SERVICE MANUAL 2.9 OVEN SAFETY FUTURES 2.9.1 Child - safe locking system All of our ovens are built-in child-safe locking systems. The future is automatically enabled any time the appliance is connected to the power, any time the switch is turned on and any time the oven is programmed to run a self-cleaning of the cavity.

  • Page 18: Safety Thermostat

    BWOS 30100 SERVICE MANUAL connected in parallel with it. In the regular cooking mode when the read temperature at the surface of the metal sheet in under 158 °F (70 °C) the power is flowing trough the resistor and it feeding the cooling fan with a voltage AC 93V .

  • Page 19: User Manual

    BWOS 30100 SERVICE MANUAL 3. USER MANUAL 3.1 CONTROL PANEL 3.1.1 Command Keys  [SET CLOCK ]: press it to set or change the time of day.  [TIMER]: press it to set or clear the minute minder.  [COOK TIME ]: press this key to set or change the duration of a cooking activity.

  • Page 20: Oven Modes

    BWOS 30100 SERVICE MANUAL 3.2 OVEN MODES The following table gives an overview of what happens in the oven with each mode setting. CONV.F LOWE ADDITION PAUS MODE UPPER RING defau 0 OFF 170° 325° 550° CONVECTI 20/60 40/60 0/60 ON ROAST 170°...

  • Page 21: Flashing Symbols Or Numbers

    BWOS 30100 SERVICE MANUAL 3.3.1 Flashing Symbols or Numbers Signals an incomplete setting and calls for another input. 3.3.2 Beeps Signals that more information must be entered or confirms the receipt of an entry. Beeps also signal the end of a function or an oven fault.

  • Page 22: Default Settings

    BWOS 30100 SERVICE MANUAL 3.3.7 Default Settings The cooking modes automatically select a suitable temperature when the selector is in the preset position. These can be changed when a different one is needed. 3.3.8 F Failure Number Codes These codes are displayed when the electronic control detects a problem in the oven or in the electronics.

  • Page 23: To Set The Clock

    BWOS 30100 SERVICE MANUAL 3.4.1 To Set the Clock 1. Press [Set Clock]. The hours will begin flashing and the display will show the CLOCK writing. 2. Press [+] or [-] to set the desired hour. Continue until correct AM or PM is selected.

  • Page 24: To Set The Timer

    BWOS 30100 SERVICE MANUAL 3.4.2 To Set the Timer 1. Press [Timer]. The timer and TIMER writing will appear on the display. 2. Press [Timer] again. The hours value and will begin flashing. 3. Press [+] or [-] to set the desired hour.

  • Page 25: Temperature Selector

    BWOS 30100 SERVICE MANUAL 3.5.2 Temperature Selector  Select the desired temperature moving the selector or let it in the PRESET position if the proposed value is fine. The temperature can be changed by 5°F steps.  As soon as one of the knob is moved, the control switches automatically to display the value.

  • Page 26: Time Oven Mode Operation

    BWOS 30100 SERVICE MANUAL 3.6 TIME OVEN MODE OPERATION  In double oven models, both ovens can be set independently to operate a timed mode.  Be sure that the time-of-day clock is displaying the correct time.  The timed mode turns off the oven at the end of the cook time.

  • Page 27: Special Feature Function

    BWOS 30100 SERVICE MANUAL begin flashing. 5. Press [+] or [-] to change the minutes. Hold the key to change by 10 minutes steps. 6. Press [Stop Time] once again or wait for a few seconds to confirm the whole stop time value.

  • Page 28: Sabbath Mode Instruction

    BWOS 30100 SERVICE MANUAL 3.8 SABBATH MODE INSTRUCTION  Enter the user option menu holding CLOCK and TIMER keys at the same time. Scroll the option list in the red digits field (dEG, OFF, Hr, Sab), by pressing INC/DEC, until Sabbath item is found.
  • Page 29 BWOS 30100 SERVICE MANUAL  Oven lights status cannot be changed during Sabbath time.  Oven temperature can only be lowered but no information can be displayed.  The cooling fan must run in Sabbath mode.  Preheat lights are inhibited during Sabbath mode.

  • Page 30: Setting The Self-Cleaning

    BWOS 30100 SERVICE MANUAL 3.9 SETTING THE SELF-CLEANING 3.9.1 To set the Self Clean Mode: 1. Rotate both knobs into clean position. 2. CLEAN & TIME writings appear. 3. The number of cleaning hours is displayed automatically, standard clean time is 3 hours.

  • Page 31: To Delay The Start Of Clean

    BWOS 30100 SERVICE MANUAL 3.9.3 To Delay the Start of Clean: 1. Follow steps 1 through 7 above. 2. Touch STOP TIME key and the hour to stop will begin flashing. 3. Use INC or DEC buttons to change the stop hour.

  • Page 32: Replacing An Oven Light

    BWOS 30100 SERVICE MANUAL place. 3.11 REPLACING AN OVEN LIGHT To replace a light bulb: 1. Read WARNING on this page. 2. Turn off power at the main power supply (fuse or breaker box). 3. In convection ovens, remove the fan cover by unscrewing the four screws.

  • Page 33: Trouble Shooting Guide

    BWOS 30100 SERVICE MANUAL  Each oven is equipped with two halogen lights located in the back wall of the oven.  The lights are switched on when the door is opened or when the oven is in a cooking cycle.
  • Page 34 BWOS 30100 SERVICE MANUAL Over Runaway One or more Replace the temperature temperature relays are power board detected while condition stuck, driving cooking during heating (t>650°f) 7.17 cooking. elements. Lower Check the Oven contact of relay Over Runaway One or more...
  • Page 35 BWOS 30100 SERVICE MANUAL connection eventually replace cable. Defective Replace display 7.19 circuit on board display board. Electronic Overheating of Cooling fan Replace the boards over the internal broken cooling fan temperature parts. Check (t>95°c) in connections connections cooking between modes.

  • Page 36: Oven Not Operative

    BWOS 30100 SERVICE MANUAL boards bus. the board to board cables. WHEN A FAILURE OCCURS, THE DISPLAY SHOWS THE WRITING FXX Err, WHEREAS xx IS ONE OF THE ERROR CODES LISTED IN THE TABLE. TO RESET THE FAILURE, FIRST THE CAUSE MUST BE REMOVED. THE COOKING MODE AND THE TEMPERATURE SELECTORS MUST BE TURNED INTO “OFF”...

  • Page 37: Convection Fan Problems

    BWOS 30100 SERVICE MANUAL Check all the connections between the sensor and the power board Check the temperature sensor Check the power board 4.4 CONVECTION FAN PROBLEMS Possible Anomaly Corrective Action section Cause Fan does not run Power board Replace Power board...

  • Page 38: Oven Light Problems

    BWOS 30100 SERVICE MANUAL Noisy. Defective mounting of Check lever mechanism of door lever door lock. mechanics. Lubricate all working parts with silicon grease The control doesn’t The Oven Wait for the temperature to unlock the door after temperature is still drop below the threshold.

  • Page 39: Selectors Problems

    BWOS 30100 SERVICE MANUAL The Oven lights are Lamps are Replace lamps. always OFF. burned out. 3.11 Power supply is ok. The Oven lights are Check the door Replace door micro switch or always ON. micro switch. connection between the door 7.10...

  • Page 40: Door Hinges Problems

    BWOS 30100 SERVICE MANUAL Anomaly Possible Cause Corrective Action section The display is always The power Verify if the voltage (-5GND) is dark, the latch at power supply to the correct on the display board. up works correctly. display board is missing.

  • Page 41: Bad Cooking Performance

    BWOS 30100 SERVICE MANUAL 4.10 BAD COOKING PERFORMANCE Anomaly Possible Cause Corrective Action section Bad performance Heating elements Check the connection of the not working heating elements If there in not power on the heating elements check relays on the power boards.

  • Page 42: Electric Diagram

    BWOS 30100 SERVICE MANUAL 5. ELECTRIC DIAGRAM 5.1 SINGLE OVEN - MULTIFUNCTION...

  • Page 43: Exploded Parts

    BWOS 30100 SERVICE MANUAL 6. EXPLODED PARTS 6.1 SINGLE OVEN 30”...
  • Page 44 BWOS 30100 SERVICE MANUAL...
  • Page 45 BWOS 30100 SERVICE MANUAL...
  • Page 46 BWOS 30100 SERVICE MANUAL...
  • Page 47 BWOS 30100 SERVICE MANUAL...
  • Page 48 BWOS 30100 SERVICE MANUAL...

  • Page 49: Component Replacement And Adjustment Procedure

    BWOS 30100 SERVICE MANUAL 7. COMPONENT REPLACEMENT AND ADJUSTMENT PROCEDURE 7.1 OVEN REMOVAL 1. Disconnect the power supply cord 2. Remove the screws shown in the pictures. 3. Pull off the oven. 4. Remove the oven by using the lateral handles.

  • Page 50: Cooling Fan Motor Substitution

    BWOS 30100 SERVICE MANUAL 7.2 COOLING FAN MOTOR SUBSTITUTION 1.Disconnect the power supply cord and remove the Oven from the cabinet. 2.Remove the upper cover. 3.Remove the screws on the attachment bar (four lateral & three on the top). 4.Disconnect the terminals on the fan.
  • Page 51 BWOS 30100 SERVICE MANUAL 10.Reconnect the power supply cord after the Oven is installed. 11.Run the Oven and check all functions.

  • Page 52: Convection Fan Motor Substitution

    BWOS 30100 SERVICE MANUAL 7.4 CONVECTION FAN MOTOR SUBSTITUTION 1.Disconnect the power supply cord and remove the Oven from the cabinet. 2.Remove the rear covers. 3.Disassemble the baffle by removing the four screws in the cavity. 4.Remove the fan blade by using a 10mm socket, than remove 3 screws in the cavity.

  • Page 53: Ring Element Substitution

    BWOS 30100 SERVICE MANUAL 7.5 RING ELEMENT SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the rear covers. 3. Disconnect the terminals of heating element. 4. Disassemble the baffle by removing the four screws in the cavity.

  • Page 54: Upper Element Substitution

    BWOS 30100 SERVICE MANUAL 12. Run the Oven and check all functions. 7.6 UPPER ELEMENT SUBSTITUTION 1.Disconnect the power supply cord and remove the Oven from the cabinet. 2.Remove the rear covers. 3.Disconnect the terminals of heating element. 4.Remove the two screws near the external terminals, one of which is used for ground.

  • Page 55: Lower Element Substitution

    BWOS 30100 SERVICE MANUAL 7.7 LOWER ELEMENT SUBSTITUTION Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the rear covers. 3. Disconnect the terminals of heating element. 4. Remove the screws near the external terminals and the other four on the brackets.

  • Page 56: Lock Door Motor Substitution

    BWOS 30100 SERVICE MANUAL 7.8 LOCK DOOR MOTOR SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper cover. 3. Remove the rear upper cover . 4. Disconnect the cables. Pay attention to the sequence of wiring of the motor (micro).

  • Page 57: Lock Door Motor Switch Substitution Solution

    BWOS 30100 SERVICE MANUAL 7.9 LOCK DOOR MOTOR SWITCH SUBSTITUTION SOLUTION 1. To disassemble the motor see section 7.8. 2. Disassemble the motor by removing the two screws and remove also the brackets. 3. Remove the micro switch by the two screws.

  • Page 58: Look Door Switch Substitution

    BWOS 30100 SERVICE MANUAL 7.10 LOOK DOOR SWITCH SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper cover, if you have to change the lower door switch, remove the middle panel to reach it.

  • Page 59: Door Gasket Substitution

    BWOS 30100 SERVICE MANUAL 7.11 DOOR GASKET SUBSTITUTION 1. Open door and pull out the gasket by hands. 2. Replace with a new switch by reversing the previous steps.

  • Page 60: Resistor 78Ω Substitution

    BWOS 30100 SERVICE MANUAL 7.12 RESISTOR 78Ω SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper or rear covers. Remove the resistor screws. 3. Replace with a new resistor by reversing the previous steps.

  • Page 61: Safety Thermostats Substitution

    BWOS 30100 SERVICE MANUAL 7.13 SAFETY THERMOSTATS SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper cover for upper cavity. For lower cavity remove rear cover and the middle panel in front for the lower cavity.

  • Page 62: Probe Temperature Substitution

    BWOS 30100 SERVICE MANUAL 7.14 PROBE TEMPERATURE SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the rear covers. 3. To replace the probe, disconnect it and remove the attachment screws. 4. During operation, the ceramic fiber must be around the probe hole.

  • Page 63: Door Hinges Substitution

    BWOS 30100 SERVICE MANUAL 7.15 DOOR HINGES SUBSTITUTION 1. Remove the door following the (see section 3.10) . 2. Put the door on a flat surface with a soft cloth to prevent scratching of the aesthetics. 3. Unscrew the door glass.

  • Page 64: Door Hinges Box Substitution

    BWOS 30100 SERVICE MANUAL 7.16 DOOR HINGES BOX SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the door following the section 3.10. 3. Unscrew the boxes to change support. 4. Disassembling the hinges box.

  • Page 65: Power Board Substitution

    BWOS 30100 SERVICE MANUAL 7.17 POWER BOARD SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper cover. 3. Remove the screws connecting the power board before disconnecting the cables. 4. Replace the new power board using the spacers.

  • Page 66: Temperature Or Function Selectors

    BWOS 30100 SERVICE MANUAL 7.18 TEMPERATURE OR FUNCTION SELECTORS 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper cover. 3. Remove the knobs and the glass. 4. Disconnect the bad selector and remove it by the screws.

  • Page 67: Display Board Substitution

    BWOS 30100 SERVICE MANUAL 7.19 DISPLAY BOARD SUBSTITUTION 1. Disconnect the power supply cord and remove the Oven from the cabinet. 2. Remove the upper cover. 3. Remove the knobs and the glass. 4. Disconnect the bad display board and remove it by the nylon spacers.

  • Page 68: Door External Glass Substitution

    BWOS 30100 SERVICE MANUAL 7.20 DOOR EXTERNAL GLASS SUBSTITUTION 1. Remove the door from the oven (see section 3.10). 2. Put the door on a flat surface with a soft cloth to prevent scratching of the aesthetics. 3. Remove the external glass from the door unscrewing two screws on the corner and three screws on the bottom.
  • Page 69 BWOS 30100 SERVICE MANUAL 7.21 DOOR INTERNAL GLASS SUBSTITUTION 1. Remove the door from the oven (see section 3.10). 2. Put the door on a flat surface with a soft cloth to prevent scratching of the aesthetics. 3. Remove the external glass from the door unscrewing two screws on the corner and three screws on the bottom (see section 7.20).
  • Page 70 BWOS 30100 SERVICE MANUAL...

This manual is also suitable for:

8978983800

Table of Contents