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Bosch
Electric Wall Oven

Model # HBN446AUC/01 Official Bosch electric built-in oven

Here are the diagrams and repair parts for Official Bosch HBN446AUC-01 electric built-in 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.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 135 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
Insulation 490349
#490349

Body diagram

Insulation

Part #490349

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

Nut 420247
#420247

Internal top panel diagram

Nut

Part #420247

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

Oven Motor 490365
#490365

Internal top panel diagram

Oven motor

Part #490365

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

Clip 421468
#421468

Fascia panel diagram

Clip

Part #421468

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

Screw 420211
#420211

Cavity diagram

Screw

Part #420211

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

Nut 420219
#420219

Cavity diagram

Nut

Part #420219

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

Bracket 421464
#421464

Fascia panel diagram

Bracket

Part #421464

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

Glass Panel 239460
#239460

Door diagram

Glass panel

Part #239460

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

Element 420229
#420229

Cavity diagram

Element

Part #420229

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

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Top 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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