Whirlpool
Wall Oven/Microwave Combo

Model # RM278PXP0 Official Whirlpool electric built-in oven with microwave

Here are the diagrams and repair parts for Official Whirlpool RM278PXP0 electric built-in oven with microwave, 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 260 parts  |

Jenn-air Screw 246131
#3B

Cabinet and airflow diagram

Jenn-air screw

Part #246131

This item is not returnable
In Stock
Cooking Appliance 14-gauge Splicing Wire, 200-degree C (red) 242831

#NI

All parts diagram

Cooking appliance 14-gauge splicing wire, 200-degree c (red)

Part #242831

In Stock
Panel-splc 312743
#3

Control diagram

Panel-splc

Part #312743

In Stock
Appliance Touch-up Paint, 6-oz (citrine White) 261900

#NI

All parts diagram

Appliance touch-up paint, 6-oz (citrine white)

Part #261900

$23.19
21% OFF Phone Price : $29.19
In Stock
Appliance Screw, 8-18 X 3/4-in 348689
#6

Control diagram

Appliance screw, 8-18 x 3/4-in

Part #348689

In Stock
Clamp 308603
#39A

Control diagram

Clamp

Part #308603

Replaced by #WP308605

?
Manufacturer substitution
This part replaces 308603. Substitute parts can look different from the original.
This item is not returnable
In Stock
Screw 338156
#32A

Cabinet and airflow diagram

Screw

Part #338156

Replaced by #WP488627

?
Manufacturer substitution
This part replaces 338156. Substitute parts can look different from the original.
This item is not returnable
$7.49
12% OFF Phone Price : $8.49
In Stock
Pulley 311923
#14

Cabinet and stirrer diagram

Pulley

Part #311923

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

Range Screw 90767
#24A

Oven diagram

Range screw

Part #90767

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

Stirrer Shaft 312026
#10

Cabinet and stirrer diagram

Stirrer shaft

Part #312026

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

Repair guides for side-by-side refrigerators

How to replace a dispenser core control board in a side-by-side refrigerator

How to replace a dispenser core control board in a side-by-side refrigerator

If your refrigerator dispenses ice or water even when the door is open, replace the dispenser core control board—it take...

Repair difficulty
Time required
45 minutes or less
How to replace an ice maker in a side-by-side refrigerator

How to replace an ice maker in a side-by-side refrigerator

Learn how to replace the ice maker in a side-by-side refrigerator with these step-by-step instructions....

Repair difficulty
Time required
30 minutes or less
How to replace a refrigerator water valve

How to replace a refrigerator water valve

Replace the water valve that feeds water to the ice maker and water dispenser if it no longer controls the flow of water...

Repair difficulty
Time required
15 minutes or less

Articles and videos for side-by-side refrigerators

How to Replace the Water Filter in a Maytag Refrigerator

How to Replace the Water Filter in a Maytag Refrigerator

No matter what style Maytag refrigerator you have, we can walk you through replacing the water filter....

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....