Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Bosch
Electric Wall Oven

Model # HBN442AUC/01 Official Bosch electric built-in oven

Here are the diagrams and repair parts for Official Bosch HBN442AUC-01 electric built-in oven, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

  • Click a diagram to see the parts shown on that diagram.
  • 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”.

We encourage you to save the model to your profile, so it’s easy to access parts and manuals for your appliance whenever you log in.

For DIY troubleshooting advice and repair guides, visit our repair help section.

Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 135 parts  |
Oven Bulb 420228
#420228

Cavity diagram

Oven bulb

Part #420228

Replaced by #00189351

?
Manufacturer substitution
This part replaces 420228. Substitute parts can look different from the original.
$25.79 | 
19% OFF Phone Price : $31.79
In Stock
Support 490363
#490363

Internal top panel diagram

Support

Part #490363

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

Channel 490357
#490357

Cavity diagram

Channel

Part #490357

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

Wall Oven Door Hinge 421026
#421026

Door diagram

Wall oven door hinge

Part #421026

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

Oven Element 420225
#420225

Cavity diagram

Oven element

Part #420225

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

Support 143599
#143599

Fascia panel diagram

Support

Part #143599

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

Hinge 491279
#491279

Body diagram

Hinge

Part #491279

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

Element 420222
#420222

Cavity diagram

Element

Part #420222

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

Knob (white) 418434
#418434

Fascia panel diagram

Knob (white)

Part #418434

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

Fan Blade 490360
#490360

Cavity diagram

Fan blade

Part #490360

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.

View all

Why won't my wall oven door unlock?

Main causes: bad oven door lock assembly, faulty electronic control board, wiring failure…

Read more

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…

Read more

Why won't my wall oven broil?

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

Read more

Why doesn't my wall oven work?

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

Read more

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…

Read more

Why won't my wall oven bake?

Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, control system failure…

Read more

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.

View all
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.…

Read more
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.…

Read more
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…

Read more
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.

View all
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.…

Read more
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.…

Read more
Wall oven common questions

Wall oven common questions

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

Read more

Parts & More