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
Universal/Multiflex (Frigidaire)
Upright Freezer

Model # MFU21M3BW3 Official Universal/Multiflex (Frigidaire) upright freezer

Here are the diagrams and repair parts for Official Universal/Multiflex (Frigidaire) MFU21M3BW3 upright freezer, 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.

Error Codes

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 96 parts  |
Filter Drier 216099900
#4

System diagram

Filter drier

Part #216099900

Replaced by #5303305677

?
Manufacturer substitution
This part replaces 216099900. Substitute parts can look different from the original.
BEST SELLER
$12.71 | 
14% OFF Phone Price : $14.71
In Stock
Key 216388700
#5

Door diagram

Key

Part #216388700

Replaced by #297147700

?
Manufacturer substitution
This part replaces 216388700. Substitute parts can look different from the original.
BEST SELLER
$9.25 | 
10% OFF Phone Price : $10.25
In Stock
Compressor-r 216356700
#29

System diagram

Compressor-r

Part #216356700

Replaced by #5304511983

?
Manufacturer substitution
This part replaces 216356700. Substitute parts can look different from the original.
BEST SELLER
$493.71 | 
$12.00 OFF Phone Price : $505.71
In Stock
Plug 216297600
#3

Cabinet/control/shelves diagram

Plug

Part #216297600

Replaced by #216502600

?
Manufacturer substitution
This part replaces 216297600. Substitute parts can look different from the original.
BEST SELLER
This item is not returnable
$13.04 | 
13% OFF Phone Price : $15.04
In Stock
Freezer Drain Hose Adapter 5308005500
#32

Cabinet/control/shelves diagram

Freezer drain hose adapter

Part #5308005500

Replaced by #5304511843

?
Manufacturer substitution
This part replaces 5308005500. Substitute parts can look different from the original.
This item is not returnable
$13.42 | 
13% OFF Phone Price : $15.42
In Stock
Freezer Inner Door Panel Rivet 5303212828
#27

Door diagram

Freezer inner door panel rivet

Part #5303212828

$19.49 | 
9% OFF Phone Price : $21.49
In Stock
Shelf 216097900
#3

System diagram

Shelf

Part #216097900

Replaced by #5304509723

?
Manufacturer substitution
This part replaces 216097900. Substitute parts can look different from the original.
This item is not returnable
$25.18 | 
19% OFF Phone Price : $31.18
In Stock
Touch Paint 5303305324

#NI

All parts diagram

Touch paint

Part #5303305324

Replaced by #5303321319

?
Manufacturer substitution
This part replaces 5303305324. Substitute parts can look different from the original.
This item is not returnable
$15.09 | 
12% OFF Phone Price : $17.09
In Stock
Support 3091418
#6

System diagram

Support

Part #3091418

Replaced by #297001600

?
Manufacturer substitution
This part replaces 3091418. Substitute parts can look different from the original.
This item is not returnable
$16.49 | 
11% OFF Phone Price : $18.49
In Stock
Support 08037928
#7

System diagram

Support

Part #08037928

Replaced by #297001500

?
Manufacturer substitution
This part replaces 08037928. Substitute parts can look different from the original.
This item is not returnable
$18.32 | 
10% OFF Phone Price : $20.32
In Stock

RECOMMENDED MAINTENANCE PARTS AND ACCESSORIES

Most common symptoms to help you fix your freestanding freezers

Choose a symptom to see related freezer repairs.

View all

Why is my freezer too warm?

Main causes: excessive frost, bad defrost heater, bad defrost bi-metal, control system failure, low refrigerant charge, …

Read more

What should I do when my freezer's high-temperature alarm sounds?

Main causes: lack of power, bad compressor, refrigerant leak, bad thermistor, defrost system failure, dirty condenser co…

Read more

Why isn't my freezer cooling?

Main causes: compressor failure, no refrigerant, faulty sensor, control failure, broken defrost heater, bad defrost bi-m…

Read more

Why is my freezer hot on the outside?

Main causes: dirty condenser coils, condenser fan failure, dirty bottom front grill, leaky door or lid gasket…

Read more

Why isn't my freezer running?

Main causes: lack of power, control system failure, broken compressor start relay, locked up compressor, compressor moto…

Read more

Why does my freezer have a lot of frost inside?

Main causes: damaged door or lid gasket, cracked cabinet liner, bad defrost bi-metal thermostat, broken defrost heater, …

Read more

Why don't the lights in my freezer work?

Main causes: burned out light bulb, bad door or lid switch, faulty LED light board, wiring failure, control system failu…

Read more

Why is my freezer so noisy?

Main causes: leaky door or lid gasket, broken defrost heater, bad defrost bi-metal thermostat, defrost control failure, …

Read more

Repair guides for upright freezers

View all
How to replace a freezer defrost heater

How to replace a freezer defrost heater

If frost builds up on the freezer evaporator because the defrost heater isn’t working, follow these step-by-step instruc…

Read more
Repair difficulty
Time required
 45 minutes or less
How to replace a freezer LED light board

How to replace a freezer LED light board

The LED lights illuminate the interior of the freezer when you open the door. It takes just a few minutes to replace the…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a freezer evaporator fan

How to replace a freezer evaporator fan

Air won’t circulate to cool the freezer properly when the evaporator fan fails. Follow these step-by-step instructions t…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your freestanding freezers

Use the advice and tips in these articles and videos to get the most out of your freezer.

View all
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.…

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
Freezer common questions

Freezer common questions

Benefit from other people's experience by checking on these frequently asked questions about freezers.…

Read more

Parts & More