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Bosch
Upright Freezer

Model # B18IW50NSP/06 Official Bosch freezer

Here are the diagrams and repair parts for Official Bosch B18IW50NSP-06 freezer, 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.

Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 113 parts  |
Module 642140
#412

Compressor diagram

Module

Part #642140

Replaced by #00667845

?
Manufacturer substitution
This part replaces 642140. Substitute parts can look different from the original.
$176.62
In Stock
Fixture 605405
#439

Compressor diagram

Fixture

Part #605405

Replaced by #00605405

?
Manufacturer substitution
This part replaces 605405. Substitute parts can look different from the original.
$23.91
In Stock
Capacitor 605603
#423

Compressor diagram

Capacitor

Part #605603

Replaced by #00632035

?
Manufacturer substitution
This part replaces 605603. Substitute parts can look different from the original.
$25.16
In Stock
Holder 604674
#438

Compressor diagram

Holder

Part #604674

Replaced by #00604674

?
Manufacturer substitution
This part replaces 604674. Substitute parts can look different from the original.
$7.94
In Stock
Switch 604241
#210

Door assy diagram

Switch

Part #604241

Replaced by #00604241

?
Manufacturer substitution
This part replaces 604241. Substitute parts can look different from the original.
$11.60
In Stock
Dryer 093110
#401

Compressor diagram

Dryer

Part #093110

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

Seal 244219
#214

Door assy diagram

Seal

Part #244219

Replaced by #00716383

?
Manufacturer substitution
This part replaces 244219. Substitute parts can look different from the original.
$131.79 | 
7% OFF Phone Price : $141.79
In Stock
Sensor,ntc 420667
#442

Compressor diagram

Sensor,ntc

Part #420667

Replaced by #00420667

?
Manufacturer substitution
This part replaces 420667. Substitute parts can look different from the original.
$43.29 | 
10% OFF Phone Price : $48.29
In Stock
Lamp 604186
#120

Cabinet parts diagram

Lamp

Part #604186

Replaced by #00604186

?
Manufacturer substitution
This part replaces 604186. Substitute parts can look different from the original.
$15.20
In Stock
Support 661226
#510

Molding diagram

Support

Part #661226

Replaced by #00661226

?
Manufacturer substitution
This part replaces 661226. Substitute parts can look different from the original.
$12.71
In Stock

Most common symptoms to help you fix your freestanding freezers

Choose a symptom to see related freezer repairs.

View all

Why don't the lights in my freezer work?

Main causes: burned out light bulb, bad door or lid switch, faulty LED light board, wiring failure, control system failu…

Read more

What should I do when my freezer's high-temperature alarm sounds?

Main causes: lack of power, bad compressor, refrigerant leak, bad thermistor, defrost system failure, dirty condenser co…

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Why isn't my freezer cooling?

Main causes: compressor failure, no refrigerant, faulty sensor, control failure, broken defrost heater, bad defrost bi-m…

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Why does my freezer have a lot of frost inside?

Main causes: damaged door or lid gasket, cracked cabinet liner, bad defrost bi-metal thermostat, broken defrost heater, …

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Why is my freezer too warm?

Main causes: excessive frost, bad defrost heater, bad defrost bi-metal, control system failure, low refrigerant charge, …

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Why is my freezer hot on the outside?

Main causes: dirty condenser coils, condenser fan failure, dirty bottom front grill, leaky door or lid gasket…

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Why isn't my freezer running?

Main causes: lack of power, control system failure, broken compressor start relay, locked up compressor, compressor moto…

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Why is my freezer so noisy?

Main causes: leaky door or lid gasket, broken defrost heater, bad defrost bi-metal thermostat, defrost control failure, …

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Repair guides for upright freezers

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How to replace a freezer control panel

How to replace a freezer control panel

A freezer control panel that doesn’t show the temperature or respond when you press the buttons could be broken. This DI…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer door switch

How to replace a freezer door switch

When the door switch fails, the freezer can’t detect that the door is closed. Follow the steps in this repair guide to r…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer thermistor

How to replace a freezer thermistor

When the thermistor can’t sense the freezer temperature, the freezer is colder or warmer than the set temperature. Follo…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your freestanding freezers

Use the advice and tips in these articles and videos to get the most out of your freezer.

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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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.…

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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…

Read more

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