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Bosch
Electric Wall Oven

Model # HBL3550UC/05 Official Bosch electric built-in oven

Here are the diagrams and repair parts for Official Bosch HBL3550UC-05 electric built-in 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.

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
Owner’s manual
Error Codes

Model diagram and schematic

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Showing 10 of 39 parts  |
Harness 663789
#NI

Control panel diagram

Harness

Part #663789

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

Plug 413573
Plug

Part #413573

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

Ring 421427
#103

Control panel diagram

Ring

Part #421427

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

Screw 608361
Screw

Part #608361

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

Cover 684096
#806

Cabinet assy diagram

Cover

Part #684096

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

Harness 646661
#NI

Control panel diagram

Harness

Part #646661

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

Base 248790
#811

Cabinet assy diagram

Base

Part #248790

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

Plate 676789
#505

Fan cooling diagram

Plate

Part #676789

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

Washer 611387
Washer

Part #611387

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

Owner's Manual 553002
#NI

Control panel diagram

Owner's manual

Part #553002

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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Top questions about Sears and Sears PartsDirect

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Wall oven common questions

Wall oven common questions

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

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