Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Tips to find your model number
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Bosch
Electric Wall Oven

Model # HBN3520UC/03 Official Bosch oven

Here are the diagrams and repair parts for Official Bosch HBN3520UC-03 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.

Owner’s manual
Error Codes

Model diagram and schematic

SEARCH WITHIN THIS MODEL

?

This is the number corresponding to the part on the diagram / schematic

Search
ALL PARTS
Showing 10 of 96 parts  |
Motor 642845
#302

Upper 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
Bracket 613179
Bracket

Part #613179

Replaced by #00613179

?
Manufacturer substitution
This part replaces 613179. Substitute parts can look different from the original.
$23.49
In Stock
Limiter 642844
#206

Pcb assy diagram

Limiter

Part #642844

Replaced by #00617877

?
Manufacturer substitution
This part replaces 642844. Substitute parts can look different from the original.
$29.36
In Stock
Bracket 610187
Bracket

Part #610187

Replaced by #00613179

?
Manufacturer substitution
This part replaces 610187. Substitute parts can look different from the original.
$23.49
In Stock
Fixing Kit 617877
#503

Vent assy diagram

Fixing kit

Part #617877

Replaced by #00617877

?
Manufacturer substitution
This part replaces 617877. Substitute parts can look different from the original.
$29.36
In Stock
Temperature Limit 612548
#206A

Pcb assy diagram

Temperature limit

Part #612548

Replaced by #00617877

?
Manufacturer substitution
This part replaces 612548. Substitute parts can look different from the original.
$29.36
In Stock
Fan 665045
#204

Pcb 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
Trim Plate 680904
Trim plate

Part #680904

Replaced by #00680904

?
Manufacturer substitution
This part replaces 680904. Substitute parts can look different from the original.
$214.01 | 
5% OFF Phone Price : $226.01
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
Door-27" 479361
#713

Lower door diagram

Door-27"

Part #479361

Replaced by #00479361

?
Manufacturer substitution
This part replaces 479361. Substitute parts can look different from the original.
$244.42
In Stock

Most common symptoms to help you fix your wall oven

Choose a symptom to see related wall oven repairs.

View all

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…

Read more

Why won't my wall oven bake?

Main causes: broken bake element, bad bake burner igniter, tripped thermal switch, control system failure…

Read more

Why won't my wall oven broil?

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

Read more

Why won't my wall oven door unlock?

Main causes: bad oven door lock assembly, faulty electronic control board, wiring failure…

Read more

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…

Read more

Why doesn't my wall oven work?

Main causes: lack of electrical power, bad electronic control board, faulty oven control thermostat…

Read more

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.

View all
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…

Read more
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.…

Read more
Repair difficulty
Time required
 60 minutes or less
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. …

Read more
Repair difficulty
Time required
 45 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.

View all
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.…

Read more
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.…

Read more
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.…

Read more

Parts & More

Front-Engine Lawn Tractor
Shop Model #279080 Husqvarna tractor