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Whirlpool
Wall Oven/Microwave Combo

Model # RM278BXS0 Official Whirlpool electric built-in oven with microwave

Here are the diagrams and repair parts for Official Whirlpool RM278BXS0 electric built-in oven with microwave, as well as links to manuals and error code tables, if available.

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Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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Installation guide
Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 267 parts  |
Light Bulb 311255
#29

Oven diagram

Light bulb

Part #311255

Replaced by #40A15

?
Manufacturer substitution
This part replaces 311255. Substitute parts can look different from the original.
BEST SELLER
$15.85 | 
11% OFF Phone Price : $17.85
In Stock
Bake Element 661170
#26

Oven diagram

Bake element

Part #661170

Replaced by #WP308180

?
Manufacturer substitution
This part replaces 661170. Substitute parts can look different from the original.
BEST SELLER
$48.31 | 
52% OFF MSRP : $100.00
In Stock
Appliance Touch-up Paint 72017

#NI

All parts diagram

Appliance touch-up paint

Part #72017

Replaced by #72017

?
Manufacturer substitution
This part replaces 72017. Substitute parts can look different from the original.
BEST SELLER
$8.29 | 
11% OFF Phone Price : $9.29
In Stock
Magnetron 660595
#26

Magnetron and airflow diagram

Magnetron

Part #660595

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

Spray W 799343

#NI

All parts diagram

Spray w

Part #799343

Replaced by #350930

?
Manufacturer substitution
This part replaces 799343. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$15.69 | 
11% OFF Phone Price : $17.69
In Stock
Screw 690989
#39A

Oven diagram

Screw

Part #690989

Replaced by #WP681414

?
Manufacturer substitution
This part replaces 690989. Substitute parts can look different from the original.
This item is not returnable
$4.39 | 
19% OFF Phone Price : $5.39
In Stock
Clip 90296
#13A

Door and drawer diagram

Clip

Part #90296

Replaced by #WP90296

?
Manufacturer substitution
This part replaces 90296. Substitute parts can look different from the original.
This item is not returnable
$4.39 | 
19% OFF Phone Price : $5.39
In Stock
Adhesive 482338

#NI

All parts diagram

Adhesive

Part #482338

Replaced by #WP482338

?
Manufacturer substitution
This part replaces 482338. Substitute parts can look different from the original.
$31.27 | 
37% OFF MSRP : $50.00
In Stock
Range Broil Element 660579
#27

Oven diagram

Range broil element

Part #660579

Replaced by #WP660579

?
Manufacturer substitution
This part replaces 660579. Substitute parts can look different from the original.
$67.38 | 
12% OFF MSRP : $77.00
In Stock
Fuse 309796
#22

Magnetron and airflow diagram

Fuse

Part #309796

Replaced by #WPW10017410

?
Manufacturer substitution
This part replaces 309796. Substitute parts can look different from the original.
This item is not returnable
$11.89 | 
14% OFF Phone Price : $13.89
In Stock

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