Bosch HBL54x0UC - Default Chapter; Table of Contents

Service Manual for Bosch Built-in Wall Ovens
TABLE OF CONTENTS
1 General ........................................................................................3
1.1 Models...................................................................................3
1.2 Features and Options............................................................3
1.3 Data Plate..............................................................................4
1.4 Warranty................................................................................4
2 Operation.....................................................................................4
2.1 Element Duty Cycles.............................................................4
2.1.1 Using Table 3 (Element Duty Cycles During Preheat)...5
2.2 Sequence of Events ..............................................................5
2.3 Cooling Fans .........................................................................7
3 Component Accessibility...........................................................8
3.1 Serviceable from Front..........................................................8
3.2 Serviceable from Top ............................................................8
3.3 Serviceable from Rear...........................................................8
4 Service and Repair .....................................................................8
4.1 Doors.....................................................................................8
4.1.1 Removing and Replacing the Door(s)............................8
4.2 Door Latch/Motor Assembly..................................................9
4.3 Lamps..................................................................................10
4.3.1 Replacing Lamps .........................................................10
4.4 High Temperature Cutout (HTC).........................................11
4.5 Convection Fan and Ring Element......................................11
4.6 Temperature Sensor ...........................................................12
4.6.1 Setting Temperature Offsets........................................12
4.7 Broil Element.......................................................................13
4.8 User Interface......................................................................13
4.8.1 Removing the User Interface .......................................14
4.9 PC Control Module (Relay Board).......................................15
4.10 Power Supply Module......................................................18
4.11 Halogen Light Transformer(s)..........................................18
4.12 Convection Fan Motor .....................................................18
4.13 Bake Element (Upper Oven)............................................18
4.13.1 Removing the Bake Element........................................18
4.13.2 Reinstalling the Bake Element .....................................19
4.14 Cooling Fan Motor (Upper Oven) ....................................19
5 Error Codes .............................................................................. 19
5.1 Error Code Table ................................................................ 19
5.2 Service Mode / Setting Option Code .................................. 20
5.2.1 HBL3/HBN3................................................................. 20
5.2.2 HBL5/HBN5................................................................. 21
5.2.3 HBL8............................................................................ 21
5.3 Option Codes...................................................................... 22
6 Demo Mode............................................................................... 22
7 Troubleshooting....................................................................... 22
7.1 Fault Tree Diagram............................................................. 23
7.2 Fault Tree ........................................................................... 25
7.3 Testing................................................................................ 33
8 Wiring Diagrams and Schematics.......................................... 33
8.1 Wire Color Key.................................................................... 33
8.2 Strip Diagrams.................................................................... 34
9 Additional References............................................................. 34
9.1 QuickFinder ........................................................................ 34
9.2 Technical Support............................................................... 34
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