Whirlpool
Wall Oven/Microwave Combo

Model # GSC278PJB3 Official Whirlpool electric wall oven

Here are the diagrams and repair parts for Official Whirlpool GSC278PJB3 electric 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.

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 237 parts  |

Bake Element 4452153
#7

Internal oven diagram

Bake element

Part #4452153

Replaced by #WPW10207397

?
Manufacturer substitution
This part replaces 4452153. Substitute parts can look different from the original.
BEST SELLER
$49.26
11% OFF Phone Price : $55.26
In Stock
Magnetron 4375072
#26

Cabinet and stirrer diagram

Magnetron

Part #4375072

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

Range High-limit Thermostat 4451442
#37

Oven/literature diagram

Range high-limit thermostat

Part #4451442

Replaced by #WP9759243

?
Manufacturer substitution
This part replaces 4451442. Substitute parts can look different from the original.
BEST SELLER
$45.89
12% OFF Phone Price : $51.89
In Stock
Microwave High-voltage Capacitor 4375020
#25

Cabinet and stirrer diagram

Microwave high-voltage capacitor

Part #4375020

Replaced by #WP4375020

?
Manufacturer substitution
This part replaces 4375020. Substitute parts can look different from the original.
BEST SELLER
$108.39
10% OFF Phone Price : $120.39
In Stock
Blower 6610168
#16

Latch diagram

Blower

Part #6610168

Replaced by #WPW10016550

?
Manufacturer substitution
This part replaces 6610168. Substitute parts can look different from the original.
BEST SELLER
$146.16
8% OFF Phone Price : $158.16
In Stock
Touch-up Paint (black) 72032
#NI

Top venting/optional diagram

Touch-up paint (black)

Part #72032

Replaced by #72032

?
Manufacturer substitution
This part replaces 72032. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$9.02
10% OFF Phone Price : $10.02
In Stock
Microwave Turntable Motor 4375347
#52

Cabinet and stirrer diagram

Microwave turntable motor

Part #4375347

Replaced by #W10642989

?
Manufacturer substitution
This part replaces 4375347. Substitute parts can look different from the original.
$69.48
8% OFF Phone Price : $75.48
In Stock
Fuse (black) 4375321
#27

Cabinet and stirrer diagram

Fuse (black)

Part #4375321

Replaced by #WP4375321

?
Manufacturer substitution
This part replaces 4375321. Substitute parts can look different from the original.
$14.13
12% OFF Phone Price : $16.13
In Stock
Wall Oven Door Inner Glass 4449253
#3

Oven door diagram

Wall oven door inner glass

Part #4449253

Replaced by #WP4449253

?
Manufacturer substitution
This part replaces 4449253. Substitute parts can look different from the original.
$75.73
7% OFF Phone Price : $81.73
In Stock
Thermal Fuse 4454976
#10

Top venting/optional diagram

Thermal fuse

Part #4454976

Replaced by #WPW10017410

?
Manufacturer substitution
This part replaces 4454976. Substitute parts can look different from the original.
This item is not returnable
$11.89
14% OFF Phone Price : $13.89
In Stock

Symptoms for gas walk-behind mowers

Choose a symptom to see related walk-behind mower repairs.

Main causes: engine needs tune up, dirty or clogged carburetor, damaged flywheel key…

Main causes: uneven wheel height settings, damaged wheel, dull or damaged cutting blade…

Main causes: damaged cutting blade, loose cutting blade, damaged flywheel key, engine needs tune up…

Main causes: stale gas, engine needs tune up, bad spark plug, dead battery, bad recoil starter, faulty safety switch, ba…

Main causes: dirty carburetor, bad spark plug, clogged air filter, engine choke problems, clogged gas cap vent…

Main causes: drive control cable failure, worn or broken drive belt, bad transmission, broken drive wheel…

Repair guides for gas walk-behind mowers

These step-by-step repair guides will help you safely fix what’s broken on your walk-behind lawn mower.

How to replace a lawn mower spark plug

How to replace a lawn mower spark plug

Take a few minutes to replace the spark plug during your lawn mower's annual tune-up or if the spark plug is burnt or cr…

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower blade

How to replace a lawn mower blade

Check your lawn mower blade regularly and replaced it if it's bent or damaged. …

Repair difficulty
Time required
 15 minutes or less
How to replace a lawn mower flywheel key on a flathead engine

How to replace a lawn mower flywheel key on a flathead engine

When you hit a hard object with your mower, the flywheel can shear to protect more expensive components. Learn how to re…

Repair difficulty
Time required
 45 minutes or less

Articles and videos for gas walk-behind mowers

Use the advice and tips in these articles and videos to get the most out of your walk-behind lawn mower.

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.…

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.…

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Lawn mower won't start troubleshooting video: spark plug and ignition problems video

Find out how to test and fix problems with the spark plug, stop wire, ignition coil and flywheel.…