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Bosch
Electric Wall Oven

Model # HBL442AUC Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBL442AUC wall oven, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 137 parts  |
Oven Bulb 420228
#420228

Cavity diagram

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
Screw 420211
#420211

Cavity diagram

Screw

Part #420211

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

Panel 470708
#470708

Body diagram

Panel

Part #470708

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

Cap Nut 420195
#420195

Body diagram

Cap nut

Part #420195

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

Insulation Cover 490347
#490347

Body diagram

Insulation cover

Part #490347

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

Shield 420233
#420233

Internal top panel diagram

Shield

Part #420233

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

Screw 420192
Screw

Part #420192

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

Reflector 239405
#239405

Door diagram

Reflector

Part #239405

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

Nut 420252
#420252

Door diagram

Nut

Part #420252

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

Screw 420190
#420190

Body diagram

Screw

Part #420190

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.

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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 won't my wall oven broil?

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

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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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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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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 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.…

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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 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

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

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

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

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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.…

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Wall oven common questions

Wall oven common questions

Read the questions our experts often hear about wall ovens, and the answers.…

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