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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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 Element 420225
Oven element

Part #420225

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

Reflector 240778
#240778

Upper lower door diagram

Reflector

Part #240778

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

Oven Element 418462
Oven element

Part #418462

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

Oven Thermostat 490986
Oven thermostat

Part #490986

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

Element 239400
#239400

Upper cavity diagram

Element

Part #239400

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

Thermostat 491421
Thermostat

Part #491421

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

Support,r 240454
Support,r

Part #240454

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

Latch 418427
Latch

Part #418427

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

Oven Selector Switch 490962
#490962

Control panel diagram

Oven selector switch

Part #490962

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.…