Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
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 # HBN3450UC/01 Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBN3450UC-01 wall 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.

Installation guide
Owner’s manual
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 75 parts  |
Sensor 642855
#307

Oven assy diagram

Sensor

Part #642855

Replaced by #00642855

?
Manufacturer substitution
This part replaces 642855. Substitute parts can look different from the original.
$64.49 | 
9% OFF Phone Price : $70.49
In Stock
Motor 642845
#302

Oven assy diagram

Motor

Part #642845

Replaced by #00642845

?
Manufacturer substitution
This part replaces 642845. Substitute parts can look different from the original.
$165.59 | 
7% OFF Phone Price : $177.59
In Stock
Bracket 610187
#412

Door assy diagram

Bracket

Part #610187

Replaced by #00613179

?
Manufacturer substitution
This part replaces 610187. Substitute parts can look different from the original.
$59.92
In Stock
Limiter 642844
#206

Pcb's assy diagram

Limiter

Part #642844

Replaced by #00617877

?
Manufacturer substitution
This part replaces 642844. Substitute parts can look different from the original.
$86.16
In Stock
Fan 665045
#204

Pcb's assy diagram

Fan

Part #665045

Replaced by #00665045

?
Manufacturer substitution
This part replaces 665045. Substitute parts can look different from the original.
$187.14
In Stock
Heater 144723
#315

Oven assy diagram

Heater

Part #144723

Replaced by #00144723

?
Manufacturer substitution
This part replaces 144723. Substitute parts can look different from the original.
$108.79 | 
10% OFF Phone Price : $120.79
In Stock
Bracket 610188
#411

Door assy diagram

Bracket

Part #610188

Replaced by #00613178

?
Manufacturer substitution
This part replaces 610188. Substitute parts can look different from the original.
$30.31 | 
17% OFF Phone Price : $36.31
In Stock
Tube 485678
#NI

Cabinet diagram

Tube

Part #485678

Replaced by #00485678

?
Manufacturer substitution
This part replaces 485678. Substitute parts can look different from the original.
$64.33
In Stock
Door Seal 643455
#403

Door assy diagram

Door seal

Part #643455

Replaced by #00643455

?
Manufacturer substitution
This part replaces 643455. Substitute parts can look different from the original.
$36.13
In Stock
Trim Plate 680904
#405

Door assy diagram

Trim plate

Part #680904

Replaced by #00680904

?
Manufacturer substitution
This part replaces 680904. Substitute parts can look different from the original.
$214.01 | 
5% OFF Phone Price : $226.01
In Stock

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
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.…

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

Parts & More