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Bosch
Electric Wall Oven

Model # HBL445AUC Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBL445AUC 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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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual
Error Codes

Model diagram and schematic

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Showing 10 of 138 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
Seal 238950
#238950

Door diagram

Seal

Part #238950

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

Bracket 420236
#420236

Internal top panel diagram

Bracket

Part #420236

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

Thermometer 421010
#421010

Cavity diagram

Thermometer

Part #421010

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

Panel 240449
#240449

Body diagram

Panel

Part #240449

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

Trim 434051
#434051

Body diagram

Trim

Part #434051

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

Wall Oven High-limit Thermostat 418676
#418676

Internal top panel diagram

Wall oven high-limit thermostat

Part #418676

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

Oven Thermostat 490986
#490986

Internal top panel diagram

Oven thermostat

Part #490986

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

Screw 420220
#420220

Cavity diagram

Screw

Part #420220

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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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....

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Top questions about Sears and Sears PartsDirect

Top questions about Sears and Sears PartsDirect

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