Bosch
Electric Wall Oven

Model #HBN3450UC/05 Bosch wall oven

Here are the diagrams and repair parts for Bosch HBN3450UC-05 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.

Showing 10 of 77 parts

Oven Harness

#NI

Control panel Diagram

Oven harness

Part #663791
$16.45

In Stock

Washer

#409

Door assy Diagram

Washer

Part #00426300
?
Manufacturer substitution
This part replaces 426300. Substitute parts can look different from the original.
This part replaces 426300
This item is not returnable
$3.65

In Stock

Knob

#105

Control panel Diagram

Knob

Part #00610073
?
Manufacturer substitution
This part replaces 610073. Substitute parts can look different from the original.
This part replaces 610073
$22.41

In Stock

Bracket

#411

Door assy Diagram

Bracket

Part #00613178
?
Manufacturer substitution
This part replaces 613178. Substitute parts can look different from the original.
This part replaces 613178
$20.89

In Stock

Fixing Kit

#308

Oven assy Diagram

Fixing kit

Part #00628609
?
Manufacturer substitution
This part replaces 628609. Substitute parts can look different from the original.
This part replaces 628609
$17.64

In Stock

Support

#314

Oven assy Diagram

Support

Part #00643000
?
Manufacturer substitution
This part replaces 643000. Substitute parts can look different from the original.
This part replaces 643000
$88.85

In Stock

Cable Harness

#NI

Control panel Diagram

Cable harness

Part #00646659
?
Manufacturer substitution
This part replaces 646659. Substitute parts can look different from the original.
This part replaces 646659
$42.04

In Stock

Ring

#103

Control panel Diagram

Ring

Part #00421427
?
Manufacturer substitution
This part replaces 421427. Substitute parts can look different from the original.
This part replaces 421427
This item is not returnable
$4.19

In Stock

Screw

#NI

Cabinet Diagram

Screw

Part #00413453
?
Manufacturer substitution
This part replaces 413453. Substitute parts can look different from the original.
This part replaces 413453
This item is not returnable
$6.00

In Stock

Fan Blade

#309

Oven assy Diagram

Fan blade

Part #00646291
?
Manufacturer substitution
This part replaces 646291. Substitute parts can look different from the original.
This part replaces 646291
$17.64

In Stock

Symptoms common to all wall oven

Choose a symptom to see related wall oven repairs.

Main causes: broken broil element, faulty broil burner igniter, control system failure
Main causes: lack of gas supply, broken igniter, tripped circuit breaker, broken oven element, tripped thermal fuse, control system failure
Main causes: bad oven door lock assembly, faulty electronic control board, wiring failure
Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, control system failure
Main causes: lack of electrical power, bad electronic control board, faulty oven control thermostat
Main causes: faulty oven temperature sensor, control system problem, weak burner igniter, damaged oven element

Repair guides common to all wall oven

These step-by-step repair guides will help you safely fix what’s broken on your wall oven.

June 1, 2015
By Lyle Weischwill
How to replace a wall oven control thermostat

Get your oven temperature under your control by replacing a faulty oven control thermostat.

Repair difficulty
Time required
 60 minutes or less
June 1, 2015
By Lyle Weischwill
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 fuse.

Repair difficulty
Time required
 60 minutes or less
How to replace a wall oven door outer glass panel

Learn how to replace a damaged outer window panel on your wall oven door with these step-by-step instructions.

Repair difficulty
Time required
 45 minutes or less

Articles and videos common to all wall oven

Use the advice and tips in these articles and videos to get the most out of your wall oven.

October 26, 2016

How to repair broken or damaged wires video

By Sears PartsDirect staff

Learn how to repair broken, frayed or damaged wires in your appliances.

September 28, 2016

Wall oven won't heat: troubleshooting thermal switch problems video

By Sears PartsDirect staff

Learn what to do if your Kenmore, Frigidaire or Electrolux wall oven won’t heat up after running a self-cleaning cycle.

September 22, 2016

Easy party appetizer recipe video

By Sears PartsDirect staff

Make your next get-together a hit with these 3 great-tasting party appetizer recipes.