Bosch
Electric Wall Oven

Model #HBL3450UC/04 Official Bosch electric built-in oven

Here are the diagrams and repair parts for Bosch HBL3450UC-04 electric built-in oven, as well as links to manuals and error code tables, if available.

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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.

Showing 10 of 76 parts

Wall Oven Temperature Sensor (replaces 642855)#307

Oven assy Diagram

Sensor

Part #642855
Replaced by #00642855
?
Manufacturer substitution
This part replaces 642855. Substitute parts can look different from the original.
In Stock
$64.49 | 
7% OFF 
Phone Price: $69.49
Wall Oven Rack#601

Shelfs Diagram

Shelf

Part #478315
Replaced by #00478315
?
Manufacturer substitution
This part replaces 478315. Substitute parts can look different from the original.
In Stock
$96.89 | 
9% OFF 
Phone Price: $106.89
Wall Oven Door Hinge Kit#407

Door assy Diagram

Hinge kit

Part #646948
Replaced by #00650874
?
Manufacturer substitution
This part replaces 646948. Substitute parts can look different from the original.
In Stock
$308.86 | 
$10.00 OFF 
Phone Price: $318.86
Range Oven Door Inner Glass#404

Door assy Diagram

Glass

Part #680088
Replaced by #00770023
?
Manufacturer substitution
This part replaces 680088. Substitute parts can look different from the original.
In Stock
$182.39 | 
5% OFF 
Phone Price: $192.39
Wall Oven Light Bulb, 40-watt (replaces 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
In Stock
$7.09 | 
12% OFF 
Phone Price: $8.09
Clip#414

Door assy Diagram

Clip

Part #612252
Replaced by #00612252
?
Manufacturer substitution
This part replaces 612252. Substitute parts can look different from the original.
In Stock
$18.06
Harness#NI

Control pnel Diagram

Harness

Part #663793
Replaced by #00663793
?
Manufacturer substitution
This part replaces 663793. Substitute parts can look different from the original.
In Stock
$49.89
Screw#401

Door assy Diagram

Screw

Part #189345

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

Wall Oven Door Middle Glass#406

Door assy Diagram

Glass panel

Part #478310
Replaced by #00478310
?
Manufacturer substitution
This part replaces 478310. Substitute parts can look different from the original.
In Stock
$143.30
Installation#NI

Control pnel Diagram

Installation

Part #553139
Replaced by #00553248
?
Manufacturer substitution
This part replaces 553139. Substitute parts can look different from the original.
In Stock
$19.86

Symptoms common to all wall oven

Choose a symptom to see related wall oven repairs.

Main causes: bad oven door lock assembly, faulty electronic control board, wiring failure
Main causes: broken broil element, faulty broil burner igniter, control system failure
Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, control system failure
Main causes: lack of electrical power, bad electronic control board, faulty oven control thermostat
Main causes: lack of gas supply, broken igniter, tripped circuit breaker, broken oven element, tripped thermal fuse, control system failure
Main causes: faulty oven temperature sensor, control system problem, weak burner igniter, damaged oven element

Repair guides common to all wall oven

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

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.

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

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

Repair difficulty
Time required
 60 minutes or less
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 fuse.

Repair difficulty
Time required
 60 minutes or less

Articles and videos common to all wall oven

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

December 29, 2021

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How to replace a microwave fuse

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Why is my microwave not heating?

Follow these tips when your microwave won't heat

December 27, 2021

How does a self-cleaning oven work?

How does a self-cleaning oven work?

Learn how the self-clean cycle works in an oven.