Sharp
Countertop Microwave

Model # R-420BW Official Sharp microwave

Here are the diagrams and repair parts for Official Sharp R-420BW 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 99 parts  |

Switch FFS-BA016/KIT

#1-07

All parts diagram

Switch

Part #FFS-BA016/KIT

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

Microwave Display Board PSHEPB023MRE0

#3-07

All parts diagram

Microwave display board

Part #PSHEPB023MRE0

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

Transformer RTRN-B060MRE0

#1-12

All parts diagram

Transformer

Part #RTRN-B060MRE0

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

Switch QSW-MA110WRE0

#1-08

All parts diagram

Switch

Part #QSW-MA110WRE0

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

Fan Blade NFANPB001MRE0

#2-08

All parts diagram

Fan blade

Part #NFANPB001MRE0

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

Transformer RTRNPB009MRE0

#NI

All parts diagram

Transformer

Part #RTRNPB009MRE0

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

Resistor VRD-B12EF472J

#NI

All parts diagram

Resistor

Part #VRD-B12EF472J

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

Spring MSPRTA046WRE0

#4-06

All parts diagram

Spring

Part #MSPRTA046WRE0

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

Roller Assembly FROLPB024MRK0

#2-13

All parts diagram

Roller assembly

Part #FROLPB024MRK0

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

Screw LX-CZB011MRE0

#6-11

All parts diagram

Screw

Part #LX-CZB011MRE0

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

Effective articles & videos to help repair your microwaves

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.…

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.…

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.…