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Bosch
Electric Wall Oven

Model # HBN3450UC/09 Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBN3450UC-09 wall oven, as well as links to manuals and error code tables, if available.

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  • Click a diagram to see the parts shown on that diagram.
  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Installation guide
Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 59 parts  |
Bracket 613179
#412

Door assy diagram

Bracket

Part #613179

The manufacturer no longer makes this part, and there's no substitute part

Trim Plate 687695
#511

Cabinet diagram

Trim plate

Part #687695

The manufacturer no longer makes this part, and there's no substitute part

Installation 553248
#NI

Control panel diagram

Installation

Part #553248

The manufacturer no longer makes this part, and there's no substitute part

Reflector 478695
#312

Oven assy diagram

Reflector

Part #478695

The manufacturer no longer makes this part, and there's no substitute part

Harness 646653
#NI

Control panel diagram

Harness

Part #646653

The manufacturer no longer makes this part, and there's no substitute part

Tubular 668853
#NI

Cabinet diagram

Tubular

Part #668853

The manufacturer no longer makes this part, and there's no substitute part

Fan Blade 646291
#309

Oven assy diagram

Fan blade

Part #646291

The manufacturer no longer makes this part, and there's no substitute part

Instructions 553126
#NI

Control panel diagram

Instructions

Part #553126

The manufacturer no longer makes this part, and there's no substitute part

Glass Panel 665062
#406

Door assy diagram

Glass panel

Part #665062

The manufacturer no longer makes this part, and there's no substitute part

Heater 478696
#313

Oven assy diagram

Heater

Part #478696

The manufacturer no longer makes this part, and there's no substitute part

Most common symptoms to help you fix your wall oven

Choose a symptom to see related wall oven repairs.

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Why won't my wall oven door unlock?

Main causes: bad oven door lock assembly, faulty electronic control board, wiring failure…

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Why won't my wall oven heat?

Main causes: lack of gas supply, broken igniter, tripped circuit breaker, broken oven element, tripped thermal fuse, con…

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Why won't my wall oven broil?

Main causes: broken broil element, faulty broil burner igniter, control system failure…

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Why doesn't my wall oven work?

Main causes: lack of electrical power, bad electronic control board, faulty oven control thermostat…

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Why isn't my wall oven at the temperature I set?

Main causes: faulty oven temperature sensor, control system problem, weak burner igniter, damaged oven element…

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Why won't my wall oven bake?

Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, control system failure…

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Most common repair guides to help fix your wall oven

These step-by-step repair guides will help you safely fix what’s broken on your wall oven.

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How to replace a wall oven thermal fuse

How to replace a wall oven thermal fuse

The thermal fuse trips to prevent the over from excessively overheating. The oven won't heat again until you replace the…

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Repair difficulty
Time required
 60 minutes or less
How to replace a wall oven control thermostat

How to replace a wall oven control thermostat

Get your oven temperature under your control by replacing a faulty oven control thermostat.…

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Repair difficulty
Time required
 60 minutes or less
How to replace a wall oven door outer glass panel

How to replace a wall oven door outer glass panel

Learn how to replace a damaged outer window panel on your wall oven door with these step-by-step instructions. …

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Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your wall oven

Use the advice and tips in these articles and videos to get the most out of your wall oven.

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5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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How to enjoy all the online benefits we offer on our Sears PartsDirect website

Learn about all the convenient features on our Sears PartsDirect website that make your parts purchases easier.…

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