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Bosch
Electric Wall Oven

Model # HBL5450UC/05 Official Bosch electric wall oven

Here are the diagrams and repair parts for Official Bosch HBL5450UC-05 electric wall oven, as well as links to manuals and error code tables, if available.

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  • 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 66 parts  |
Latch 644216
#207

Pcb's assy diagram

Latch

Part #644216

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

Inner Glass 683646
#404

Door assy diagram

Inner glass

Part #683646

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

Door Seal 144652
#403

Door assy diagram

Door seal

Part #144652

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

Glass Panel 478310
#406

Door assy diagram

Glass panel

Part #478310

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

Wall Oven Selector Switch Knob 609121
#105

Control panel diagram

Wall oven selector switch knob

Part #609121

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

Element 144648
#316

Oven assy diagram

Element

Part #144648

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

Wall Oven Wire Harness 663925
#NI

Pcb's assy diagram

Wall oven wire harness

Part #663925

Replaced by #00663925

?
Manufacturer substitution
This part replaces 663925. Substitute parts can look different from the original.
$26.29
In Stock
Bracket 613178
#408

Door assy diagram

Bracket

Part #613178

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

Connection 414692
#NI

Cabinet assy diagram

Connection

Part #414692

Replaced by #00414692

?
Manufacturer substitution
This part replaces 414692. Substitute parts can look different from the original.
$49.31
In Stock
Catalyzer 491572
#304

Oven assy diagram

Catalyzer

Part #491572

Replaced by #00491572

?
Manufacturer substitution
This part replaces 491572. Substitute parts can look different from the original.
$59.36
In Stock

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 the thermal switch in a wall oven

How to replace the thermal switch in a wall oven

If the oven won't heat after resetting the thermal switch, replace the thermal switch.…

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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 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…

Read more
Repair difficulty
Time required
 60 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

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Top questions about Sears and Sears PartsDirect

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Wall oven common questions

Wall oven common questions

Read the questions our experts often hear about wall ovens, and the answers.…

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