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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.

There are a couple of ways to find the part or diagram you need:

  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

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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Showing 10 of 64 parts  |
Element 144648
#316

Oven assy diagram

Element

Part #144648

Replaced by #00144648

?
Manufacturer substitution
This part replaces 144648. Substitute parts can look different from the original.
$108.49
| 
10% OFF Phone Price : $120.49
In Stock
Bulb 623710
#NI

Oven assy diagram

Bulb

Part #623710

Replaced by #00623710

?
Manufacturer substitution
This part replaces 623710. Substitute parts can look different from the original.
This item is not returnable
$7.09
| 
12% OFF Phone Price : $8.09
In Stock
Terminal Box 436364
#204

Pcb's assy diagram

Terminal box

Part #436364

Replaced by #00436364

?
Manufacturer substitution
This part replaces 436364. Substitute parts can look different from the original.
$32.67
In Stock
Bracket 613179
#409

Door assy diagram

Bracket

Part #613179

Replaced by #00613179

?
Manufacturer substitution
This part replaces 613179. Substitute parts can look different from the original.
$23.49
In Stock
Bracket 613178
#408

Door assy diagram

Bracket

Part #613178

Replaced by #00613178

?
Manufacturer substitution
This part replaces 613178. Substitute parts can look different from the original.
$30.31
| 
17% OFF Phone Price : $36.31
In Stock
Element 663805
#311

Oven assy diagram

Element

Part #663805

Replaced by #00663805

?
Manufacturer substitution
This part replaces 663805. Substitute parts can look different from the original.
$78.59
| 
7% OFF Phone Price : $84.59
In Stock
Wall Oven Selector Switch Knob 609121
#105

Control panel diagram

Wall oven selector switch knob

Part #609121

Replaced by #00609121

?
Manufacturer substitution
This part replaces 609121. Substitute parts can look different from the original.
$47.99
| 
11% OFF Phone Price : $53.99
In Stock
Oven Harness 663791
#NI

Pcb's assy diagram

Oven harness

Part #663791

Replaced by #00663791

?
Manufacturer substitution
This part replaces 663791. Substitute parts can look different from the original.
$32.67
In Stock
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
Temperature Limit 612548
#202

Pcb's assy diagram

Temperature limit

Part #612548

Replaced by #00617877

?
Manufacturer substitution
This part replaces 612548. Substitute parts can look different from the original.
$29.36
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 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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Why won't my wall oven broil?

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

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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 doesn't my wall oven work?

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

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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. ...

Read more
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

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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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