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Frigidaire
Dishwasher

Model # FDB421RFS5 Official Frigidaire dishwasher

Here are the diagrams and repair parts for Official Frigidaire FDB421RFS5 dishwasher, as well as links to manuals and error code tables, if available.

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Error Codes

Model diagram and schematic

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ALL PARTS
Showing 10 of 113 parts  |
Gasket 154211801
#3

Tub diagram

Gasket

Part #154211801

Replaced by #154827601

?
Manufacturer substitution
This part replaces 154211801. Substitute parts can look different from the original.
BEST SELLER
$31.02 | 
16% OFF Phone Price : $37.02
In Stock
Control Arm 154250801
#24

Motor and pump diagram

Control arm

Part #154250801

Replaced by #5304517203

?
Manufacturer substitution
This part replaces 154250801. Substitute parts can look different from the original.
BEST SELLER
$39.00 | 
13% OFF Phone Price : $45.00
In Stock
Dishwasher Lower Spray Arm Support 154294101
#62

Motor and pump diagram

Dishwasher lower spray arm support

Part #154294101

Replaced by #5304518968

?
Manufacturer substitution
This part replaces 154294101. Substitute parts can look different from the original.
BEST SELLER
$15.09 | 
12% OFF Phone Price : $17.09
In Stock
Dishwasher Pump O-ring, Rear 154246901
#59

Motor and pump diagram

Dishwasher pump o-ring, rear

Part #154246901

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$38.87 | 
13% OFF Phone Price : $44.87
In Stock
Dishwasher Pump O-ring, Front 154247001
#59A

Motor and pump diagram

Dishwasher pump o-ring, front

Part #154247001

BEST SELLER
$38.87 | 
13% OFF Phone Price : $44.87
In Stock
Dishwasher Filter 154252401
#65

Motor and pump diagram

Dishwasher filter

Part #154252401

Replaced by #5304506525

?
Manufacturer substitution
This part replaces 154252401. Substitute parts can look different from the original.
BEST SELLER
$22.84 | 
21% OFF Phone Price : $28.84
In Stock
Latch W/hand 154308101
#12A

Door diagram

Latch w/hand

Part #154308101

Replaced by #5304442175

?
Manufacturer substitution
This part replaces 154308101. Substitute parts can look different from the original.
BEST SELLER
$52.63 | 
10% OFF Phone Price : $58.63
In Stock
Heating Element Nut 154106201
#1A

Motor and pump diagram

Heating element nut

Part #154106201

Replaced by #154106202

?
Manufacturer substitution
This part replaces 154106201. Substitute parts can look different from the original.
BEST SELLER
$7.99 | 
11% OFF Phone Price : $8.99
In Stock
Latch W/hand 154308103
#12

Door diagram

Latch w/hand

Part #154308103

Replaced by #5304442175

?
Manufacturer substitution
This part replaces 154308103. Substitute parts can look different from the original.
BEST SELLER
$52.63 | 
10% OFF Phone Price : $58.63
In Stock
Spring 154345902
#1

Door diagram

Spring

Part #154345902

Replaced by #154430501

?
Manufacturer substitution
This part replaces 154345902. Substitute parts can look different from the original.
BEST SELLER
$28.73 | 
17% OFF Phone Price : $34.73
In Stock

Most common symptoms to help you fix your dishwashers

Choose a symptom to see related dishwasher repairs.

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Why won't my dishwasher fill?

Main causes: water supply problem, stuck overfill float, clogged water inlet valve screen, water inlet valve failure…

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Why won't my dishwasher drain?

Main causes: clogged kitchen sink drain, clogged drain hose, drain check valve damaged, drain pump failure, control syst…

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Why does my dishwasher door drop open too fast?

Main causes: broken door spring, damaged or broken door hinge…

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Why can't I adjust the dishwasher rack height?

Main cause: damaged rack height adjuster…

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Why isn't my dishwasher getting dishes clean?

Main causes: improper loading, low water temperature, improper detergent dosage, detergent dispenser failure, spray arm …

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Why won't my dishwasher start?

Main causes: light switch beside the sink turned off, lack of power, bad dishwasher door switch, control system failure,…

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Why don't my dishes get dry?

Main causes: not using rinse aid, rinse aid dispenser failure, broken heating element, malfunctioning vent, drying fan f…

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Why does my dishwasher stop mid-cycle?

Main causes: broken door latch, tripped circuit breaker, broken heating element, faulty vent fan, sensor failure, contro…

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Why is my dishwasher noisy?

Main causes: glass or popcorn kernel stuck in the chopper blade, drain line vibrating against the cabinet, debris in was…

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Most common repair guides to help fix your dishwashers

These step-by-step repair guides will help you safely fix what’s broken on your dishwasher.

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How to replace a dishwasher high-limit thermostat

How to replace a dishwasher high-limit thermostat

Follow these steps to replace the high-limit thermostat in your dishwasher if prevents the heating element from heating.…

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Repair difficulty
Time required
 30 minutes or less
How to replace a dishwasher door outer panel

How to replace a dishwasher door outer panel

If your dishwasher door is dented or you want it to match your cabinets or other appliances, this guide shows how to rep…

Read more
Repair difficulty
Time required
 15 minutes or less
How to replace a dishwasher thermal fuse

How to replace a dishwasher thermal fuse

A completely dead control panel often indicates that the thermal fuse on the electronic control board is blown; follow t…

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Repair difficulty
Time required
 15 minutes or less

Effective articles & videos to help repair your dishwashers

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

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How to clean and maintain your dishwasher

How to clean and maintain your dishwasher

Get tips for cleaning and maintaining your dishwasher…

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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.…

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Top questions about Sears and Sears PartsDirect

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