Table of Contents
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S
ERVICE
for
300, 500, and 800 Series
Built-in Wall Ovens
Models:
HBL8x50UC, HBL57x0UC, HBL56x0UC,
HBL54x0UC, HBL35x0UC, HBL33x0UC,
HBN56x0UC, HBN54x0UC, HBN35x0UC,
HBN34x0UC, HBN3350UC
M
ANUAL
This manual contains information that is necessary for
servicing the following Bosch electric built-in wall
ovens:
HBL8x50UC, HBL57x0UC, HBL56x0UC,
HBL54x0UC, HBL35x0UC, HBL33x0UC,
HBN56x0UC, HBN54x0UC, HBN35x0UC,
HBN34x0UC, HBN3350UC
This manual is designed to be used by qualified
service personnel only. Due to the complexity and the
risk of high-voltage electrical shock, Bosch does not
recommend that customers service their own units.
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Table of Contents
Related Manuals for Bosch HBL8x50UC
Summary of Contents for Bosch HBL8x50UC
- Page 1 HBN56x0UC, HBN54x0UC, HBN35x0UC, HBN34x0UC, HBN3350UC This manual is designed to be used by qualified service personnel only. Due to the complexity and the risk of high-voltage electrical shock, Bosch does not recommend that customers service their own units. Models: HBL8x50UC, HBL57x0UC, HBL56x0UC,...
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Page 2: Table Of Contents
Service Manual for Bosch Built-in Wall Ovens TABLE OF CONTENTS Error Codes ................19 General ..................3 Error Code Table ..............19 Models................... 3 Service Mode / Setting Option Code ........20 Features and Options............3 5.2.1 HBL3/HBN3 ..............20 Data Plate................ -
Page 3: General
Features and Options combinations and three colors (black, white, and stainless), included in the 2007 Bosch 300, 500, and 800 Series Built-in Wall Oven Cavity configuration and features by model appear below. (BIWO) product line. These models include A (thermal), B (convection), and C (convection with ring element) oven cavities. -
Page 4: Data Plate
The product is warranted to be free from defects in materials and workmanship for a period of 12 months from date of purchase. Bosch will pay for all repair labor and replacement parts found to be defective due to materials and workmanship. Service must be provided by a Factory Authorized Service Agency, during normal working hours. -
Page 5: Using Table 3 (Element Duty Cycles During Preheat)
Service Manual for Bosch Built-in Wall Ovens Using the data in the table, below is an example of how the elements cycle on and off during a 60-second Preheat cycle in True Convection mode (see Cavity C): HBL8450UC built in 01/2008 (see columns labeled -1-) •... - Page 6 Service Manual for Bosch Built-in Wall Ovens Figure 2 Sequence of Events during Preheat: Convection Bake & Roast/ Bake, Roast, Warm, Proof, Fi gure 3 Sequence of Events during Preheat: Convection Broil/Broil modes Pizza, Pie, & Sabbath modes Page 6 of 36...
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Page 7: Cooling Fans
Service Manual for Bosch Built-in Wall Ovens Figure 4 Sequence of Events during Preheat: True Convection Figure 5 Sequence of Events during Preheat: Self-clean mode Cooling Fans Cooling fans will run for two minutes after the oven has been shut off, regardless of the oven temperature. -
Page 8: Component Accessibility
The user interface is serviceable from the front after sliding the oven Doors out from the wall ~ 4 inches. On double ovens, the Bosch logo is located on the lower oven outer Serviceable from Top door glass. The PC control module (relay board) is serviceable from the top 30”... -
Page 9: Door Latch/Motor Assembly
Service Manual for Bosch Built-in Wall Ovens To remove the door… Door Latch/Motor Assembly 1. Open door completely. The motorized door latch (MDL) mechanism (120V 5W) has 2 2. Flip hinge levers back to open as shown below. switches - the door switch and the lock/unlock switch. The latch will automatically lock when mode and temperature selectors are set to CLEAN, and unlock when the oven cools to ~490°F. -
Page 10: Lamps
Service Manual for Bosch Built-in Wall Ovens Lamps 4.3.1 Replacing Lamps The number and type of lamps in each cavity will vary, depending on The operation of the cavity lights is determined by the state of the model. Two types of bulbs are used: 10-watt, 12-volt bi-pin halogen lights, the state of the oven, and the button(s) pressed. -
Page 11: High Temperature Cutout (Htc)
Service Manual for Bosch Built-in Wall Ovens 3. Pull the halogen bulb straight out from its socket. 4. Using a clean, dry cloth, insert the new bulb. 5. Reinsert the bottom of the glass cover (smooth side out) into the bottom clip, and firmly push the top of the cover into the upper clip until it snaps into place. -
Page 12: Temperature Sensor
Service Manual for Bosch Built-in Wall Ovens The ring element (240V 2000W) and/or fan blade are easily accessed through the HBL8, HBL5/HBN5 menu options by pressing FAST on the rear wall of the oven cavity behind the convection baffle. The until the Oven temp or Probe temp option is reached. -
Page 13: Broil Element
Note: for double ovens, an offset can be entered separately for each oven by selecting either Up. Offset or Lo. Offset from the menu. Broil Element All Bosch models have a recessed 10-pass (240V 3600W) broil element. Refer to the Element Strip Diagram to test the element at the control module, or 1. -
Page 14: Removing The User Interface
Service Manual for Bosch Built-in Wall Ovens The user interface control board is assembled onto a chassis and the entire assembly is serviced as a single unit. 4.8.1 Removing the User Interface 1. Slide unit out from wall ~ 4 inches. -
Page 15: Pc Control Module (Relay Board)
Service Manual for Bosch Built-in Wall Ovens After installing a new user interface board, always reset the oven and test. PC Control Module (Relay Board) To access the PC control module, pull the unit out from the wall 15-16 inches, and remove the access panel (3 T20 screws) on the top of the unit. - Page 16 Service Manual for Bosch Built-in Wall Ovens Use Table 6 as a reference guide to the plugs, pins, and wire colors PLUG PIN NO FROM/TO found on the PC control module. 3-Blank 4-BK L1 to K106 Relay PLUG PIN NO...
- Page 17 Service Manual for Bosch Built-in Wall Ovens PLUG PIN NO FROM/TO PLUG PIN NO FROM/TO X110 1-BU High Temperature Cutout (HTC) 3-BU High Temperature Cutout (HTC) 2-Not Used LOWER CAVITY SMALL LOAD 3-BU High Temperature Cutout (HTC) X205 1-YE K212 Relay to Convection Fan...
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Page 18: Power Supply Module
Service Manual for Bosch Built-in Wall Ovens the module bracket from the 3 slots in the chassis. 4.12 Convection Fan Motor The convection fan motor is 120V 29W. To test the motor, check for Always reset the oven and test after changing the control module. In 120V across X105 / Pin 2 (upper/single) or X205 / Pin 1 (HBL8650) some cases, a second reset may be necessary. -
Page 19: Reinstalling The Bake Element
N, H, and L for reference, as shown in Figure 18. Figure 19 Location of Bosch Built-in Oven Service Guide Error Code Table The following table is included in the oven Service Guide. The error codes which begin with E2 apply to the lower cavity of double ovens. -
Page 20: Service Mode / Setting Option Code
Service Manual for Bosch Built-in Wall Ovens CODE DESCRIPTION CAUSE/ACTION CODE DESCRIPTION CAUSE/ACTION E000 Wrong module combination Control module and user E118/E218 Cvt 1/Cvt 2 Cooling fan supervision Cooling fan speed is too low interface are mismatched. Set error or too high. Refer to Diagram Option Code properly. -
Page 21: Hbl5/Hbn5
Service Manual for Bosch Built-in Wall Ovens To set the option code… Locate the 4-digit code on the label near the PC Control Board in the upper plenum or in Table 8 below. Set the Option Code by rotating the Settings dial. -
Page 22: Option Codes
Service Manual for Bosch Built-in Wall Ovens Follow the instructions on the oven display and enter the TROUBLESHOOTING appropriate code. To confirm the change after the code has been entered, Use the Fault Tree Diagram and Fault Tree on the following pages to press FAST PREHEAT to advance to the next menu item. -
Page 23: Fault Tree Diagram
Service Manual for Bosch Built-in Wall Ovens Fault Tree Diagram Page 23 of 36... - Page 24 Service Manual for Bosch Built-in Wall Ovens Page 24 of 36...
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Page 25: Fault Tree
Service Manual for Bosch Built-in Wall Ovens Fault Tree Page 25 of 36... - Page 26 Service Manual for Bosch Built-in Wall Ovens Page 26 of 36...
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Page 33: Testing
Service Manual for Bosch Built-in Wall Ovens Plug Pins Operates Explanation X206 1 (common), Lower oven door If latch position is not detected during Testing 6, 7 latch normal operation, E224/226 will be displayed. Test with wire harness off at pin header or with circuits open. -
Page 34: Strip Diagrams
Not all service parts are shown on the QuickFinder exploded views; review the parts list for additional information. Technical Support To reach Bosch technical support, call the toll free TechLine at Figure 24 Lower (Cavity 2) oven strip diagram Page 34 of 36... - Page 35 Service Manual for Bosch Built-in Wall Ovens 888 522-6724. Technicians are available to assist you Monday – Friday, between the hours of 5am and 5pm, Pacific Time. Page 35 of 36...
- Page 36 Service Manual for Bosch Built-in Wall Ovens Notes 58300000139357 ARA EN B BSH Home Appliances Corporation Page 36 of 36 5551 McFadden Ave., Huntington Beach, CA 92649 February 2009...