Can’t find your part?   Contact us:
+1-309-603-4777
Sears Parts Direct
Orders

  • Keep track of the models you own in your profile

    Sign in or Register to view or add models

Schedule a repair
Sharp
Countertop Microwave

Model # R-300BW Official Sharp microwave

Here are the diagrams and repair parts for Official Sharp R-300BW 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 68 parts  |
Switch QSW-MA110WRE0
#1-1

Oven/cabinet parts diagram

Switch

Part #QSW-MA110WRE0

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

Diode FH-DZA075WRK0
#1-6

Oven/cabinet parts diagram

Diode

Part #FH-DZA075WRK0

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

Spring MSPRTA187WRE0
#5-6

Control panel/door parts diagram

Spring

Part #MSPRTA187WRE0

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

Thermal Cu RTHM-A078WRE0
#1-4

Oven/cabinet parts diagram

Thermal cu

Part #RTHM-A078WRE0

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

Lever MLEVPA226WRF0
#4-11

Oven/cabinet parts diagram

Lever

Part #MLEVPA226WRF0

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

Motor RMOTDA161WRE0
#1-12

Oven/cabinet parts diagram

Motor

Part #RMOTDA161WRE0

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

Microwave Turntable NTNT-A084WRE0
#6-2

Oven/cabinet parts diagram

Microwave turntable

Part #NTNT-A084WRE0

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

Cover PCOVPA275WRE0
#4-14

Oven/cabinet parts diagram

Cover

Part #PCOVPA275WRE0

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

Magnetron RV-MZA267WRE0
#1-8

Oven/cabinet parts diagram

Magnetron

Part #RV-MZA267WRE0

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

Fan NFANJA029WRE0
#4-5

Oven/cabinet parts diagram

Fan

Part #NFANJA029WRE0

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

Effective articles & videos to help repair your microwaves

View all
5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

5 Holiday Cleaning Tasks Essential to Boosting Your Home’s Image

Get tips on completing essential holiday cleaning tasks to brighten your home.…

Read more
Introducing new technical repair content that we’re developing for the Sears Technical Institute

Introducing new technical repair content that we’re developing for the Sears Technical Institute

Learn about Sears Technical Institute and the advanced technical content being developed for aspiring appliance techs.…

Read more
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.…

Read more

Parts & More