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Bosch
Electric Wall Oven

Model # HBL8450UC/07 Official Bosch electric built-in oven

Here are the diagrams and repair parts for Official Bosch HBL8450UC-07 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”.

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

Installation guide
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 24 parts  |
Fan Blade 646291
#310

Oven assy diagram

Fan blade

Part #646291

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

Base 248790
#505

Cabinet assy diagram

Base

Part #248790

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

Plate 664290
#502

Cabinet assy diagram

Plate

Part #664290

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

Lamp 646665
#305

Oven assy diagram

Lamp

Part #646665

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

Harness 646662
#NI

Control panel diagram

Harness

Part #646662

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

Screw 189345
#401

Door assy diagram

Screw

Part #189345

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

Bracket 608076
#210

Pcb's asy diagram

Bracket

Part #608076

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

Harness 663798
#NI

Control panel diagram

Harness

Part #663798

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

Washer 605039
#319

Oven assy diagram

Washer

Part #605039

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

Halogen 608088
#303

Oven assy diagram

Halogen

Part #608088

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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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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