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
Lock Washer 420210
Lock washer

Part #420210

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

Selector 490963
#490963

Control panel diagram

Selector

Part #490963

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

Sleeve 420182
#420182

Upper body diagram

Sleeve

Part #420182

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

Shield 420233
Shield

Part #420233

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

Element 420229
Element

Part #420229

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

Mounting 420237
Mounting

Part #420237

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

Nut 420247
Nut

Part #420247

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

Hinge Plate 421509
Hinge plate

Part #421509

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

Panel 438462
#438462

Lower body diagram

Panel

Part #438462

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

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

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

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

Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, 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 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.…

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 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

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.…