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Bosch
Electric Wall Oven

Model # HBN3550UC/01 Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBN3550UC-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

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Showing 10 of 86 parts  |
Power Supply 663802
#203

Pcb's assy diagram

Power supply

Part #663802

Replaced by #00663802

?
Manufacturer substitution
This part replaces 663802. Substitute parts can look different from the original.
$128.19 | 
9% OFF Phone Price : $140.19
In Stock
Control Module 665998
#201

Pcb's assy diagram

Control module

Part #665998

Replaced by #00655356

?
Manufacturer substitution
This part replaces 665998. Substitute parts can look different from the original.
$454.79 | 
$12.00 OFF Phone Price : $466.79
In Stock
Spacer 427919
Spacer

Part #427919

Replaced by #00427919

?
Manufacturer substitution
This part replaces 427919. Substitute parts can look different from the original.
$19.80
In Stock
Heater 144723
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
Motor 642845
#302

Conv oven 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
Trim Plate 643430
Trim plate

Part #643430

Replaced by #00680904

?
Manufacturer substitution
This part replaces 643430. Substitute parts can look different from the original.
$214.01 | 
5% OFF Phone Price : $226.01
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
Oven Harness 663791
#NI

Control panel diagram

Oven harness

Part #663791

Replaced by #00663791

?
Manufacturer substitution
This part replaces 663791. Substitute parts can look different from the original.
$32.67
In Stock
Inner Door 478701
Inner door

Part #478701

Replaced by #00688544

?
Manufacturer substitution
This part replaces 478701. Substitute parts can look different from the original.
$332.33 | 
$12.00 OFF Phone Price : $344.33
In Stock
Grille 449756
#902

Shelfs diagram

Grille

Part #449756

Replaced by #00449756

?
Manufacturer substitution
This part replaces 449756. Substitute parts can look different from the original.
$57.89
In Stock

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

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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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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 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 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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Most common repair guides to help fix your wall oven

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How to replace a wall oven door outer glass panel

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Time required
 45 minutes or less
How to replace a wall oven control thermostat

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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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Time required
 60 minutes or less

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