Bosch
Electric Wall Oven

Model # HBN452AUC Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBN452AUC wall oven, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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ALL PARTS
Showing 10 of 140 parts  |

Oven Bulb 420228
Oven bulb

Part #420228

Replaced by #00189351

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Manufacturer substitution
This part replaces 420228. Substitute parts can look different from the original.
$25.79
19% OFF Phone Price : $31.79
In Stock
Oven Panel 434078
#434078

Upper lower door diagram

Oven panel

Part #434078

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

Washer 420251
#420251

Upper lower door diagram

Washer

Part #420251

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

Nut 420252
#420252

Upper lower door diagram

Nut

Part #420252

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

Wall Oven Door Hinge 421026
#421026

Upper lower door diagram

Wall oven door hinge

Part #421026

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

Elbow 420183
#420183

Upper body diagram

Elbow

Part #420183

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

Lock Washer 420210
Lock washer

Part #420210

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

Oven Blower Motor 435175
Oven blower motor

Part #435175

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

Fan Blade 490360
#490360

Upper cavity diagram

Fan blade

Part #490360

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

Decorative Strip 471240
Decorative strip

Part #471240

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.

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

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

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

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

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

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

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.

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…

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.…

Repair difficulty
Time required
 60 minutes or less
How to replace wall oven door hinges

How to replace wall oven door hinges

If your oven door flops open fast, it's time to replace the hinges. Follow these step-by-step instructions to do it your…

Repair difficulty
Time required
 15 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.

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

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

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

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

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.…

Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

Get answers to frequently asked questions about Sears and Sears PartsDirect.…