Bosch
Electric Wall Oven

Model # HBL445AUC Official Bosch wall oven

Here are the diagrams and repair parts for Official Bosch HBL445AUC wall oven, as well as links to manuals and error code tables, if available.

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Model diagram and schematic

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Showing 10 of 138 parts  |

Oven Bulb 420228
#420228

Cavity diagram

Oven bulb

Part #420228

Replaced by #00189351

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Manufacturer substitution
This part replaces 420228. Substitute parts can look different from the original.
$25.79
16% OFF Phone Price : $30.79
In Stock
Oven Handle 418424
#418424

Door diagram

Oven handle

Part #418424

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

Insulation 424078
#424078

Body diagram

Insulation

Part #424078

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

Band 434052
#434052

Body diagram

Band

Part #434052

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

Locking 490368
#490368

Internal top panel diagram

Locking

Part #490368

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

Screw 420226
#420226

Cavity diagram

Screw

Part #420226

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

Oven Insulation 434056
#434056

Body diagram

Oven insulation

Part #434056

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

Elbow 420183
#420183

Body diagram

Elbow

Part #420183

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

Oven Timer 489265
#489265

Fascia panel diagram

Oven timer

Part #489265

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

Rail 435636
#435636

Body diagram

Rail

Part #435636

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.

Main causes: faulty oven temperature sensor, control system problem, weak burner igniter, damaged oven element…

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

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

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

Main causes: lack of gas supply, broken igniter, tripped circuit breaker, broken oven element, tripped thermal fuse, con…

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

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.

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. …

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.…

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…

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.

Oven rack placement for the best results video

Oven rack placement for the best results video

Learn where to place the rack in your oven for optimal broiling, toasting, baking or roasting.…

How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…