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Bosch
Electric Wall Oven

Model # HBN5420UC/02 Official Bosch electric built-in oven

Here are the diagrams and repair parts for Official Bosch HBN5420UC-02 electric built-in oven, as well as links to manuals and error code tables, if available.

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Installation guide
Owner’s manual
Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 89 parts  |
Thermador Wall Oven Temperature Sensor (replaces 642855) 00642855
#306

Inner parts diagram

Thermador wall oven temperature sensor (replaces 642855)

Part #00642855

$64.49 | 
9% OFF Phone Price : $70.49
In Stock
Thermador Wall Oven Power Supply Board (replaces 663802) 00663802
#203

Latch asy diagram

Thermador wall oven power supply board (replaces 663802)

Part #00663802

$128.19 | 
9% OFF Phone Price : $140.19
In Stock
Latch 00644216
#205

Latch asy diagram

Latch

Part #00644216

Replaced by #00751505

?
Manufacturer substitution
This part replaces 00644216. Substitute parts can look different from the original.
$144.49 | 
8% OFF Phone Price : $156.49
In Stock
Wall Oven Upper Oven Bake Element 00144723
#315

Inner parts diagram

Wall oven upper oven bake element

Part #00144723

$108.79 | 
10% OFF Phone Price : $120.79
In Stock
Thermador Spacer 00427919
#304

Inner parts diagram

Thermador spacer

Part #00427919

$19.80
In Stock
Thermador Wall Oven Convection Fan Motor 00642845
#302

Inner parts diagram

Thermador wall oven convection fan motor

Part #00642845

$165.59 | 
7% OFF Phone Price : $177.59
In Stock
Control Module 00665996
#201

Latch asy diagram

Control module

Part #00665996

Replaced by #00655359

?
Manufacturer substitution
This part replaces 00665996. Substitute parts can look different from the original.
$548.51 | 
$12.00 OFF Phone Price : $560.51
In Stock
Ring 00423808
#103

Control panel diagram

Ring

Part #00423808

This item is not returnable
$20.34
In Stock
Wall Oven Door Handle Screw 00422099
#413

Door diagram

Wall oven door handle screw

Part #00422099

$19.23
In Stock
Grill Grid 00449756
#602

Rack diagram

Grill grid

Part #00449756

$57.89
In Stock

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 broil?

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

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 a wall oven door outer glass panel

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. …

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Repair difficulty
Time required
 45 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

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

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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.…

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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.…

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