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Frigidaire
Dehumidifier

Model # MDD40TF1 Official Frigidaire dehumidifier - 5995256475

Here are the diagrams and repair parts for Official Frigidaire MDD40TF1 dehumidifier - 5995256475, as well as links to manuals and error code tables, if available.

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Showing 10 of 70 parts  |
Relay 3204486
#42

Unit parts diagram

Relay

Part #3204486

Replaced by #216594300

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Manufacturer substitution
This part replaces 3204486. Substitute parts can look different from the original.
$53.69 | 
10% OFF Phone Price : $59.69
In Stock
Dial Plate 327600208
#5

Cabinet front and wrapper diagram

Dial plate

Part #327600208

$9.49
In Stock
Capacitor 5303303824
#46

Unit parts diagram

Capacitor

Part #5303303824

$30.99
In Stock
Cover Capacitor 5303303821
#48

Unit parts diagram

Cover capacitor

Part #5303303821

This item is not returnable
$3.49
In Stock
Bracket 5303296824
#6

Unit parts diagram

Bracket

Part #5303296824

This item is not returnable
$2.99
In Stock
Bracket Screw 5303301590
#9

Unit parts diagram

Bracket screw

Part #5303301590

This item is not returnable
$4.63
In Stock
Switch 5303012345
#5

Unit parts diagram

Switch

Part #5303012345

$39.35
In Stock
Kelvinator Room Air Conditioner Lock Nut 08007481
#14

Unit parts diagram

Kelvinator room air conditioner lock nut

Part #08007481

This item is not returnable
$5.74
In Stock
Room Air Conditioner Screw 5303015427
Room air conditioner screw

Part #5303015427

Replaced by #134178901

?
Manufacturer substitution
This part replaces 5303015427. Substitute parts can look different from the original.
$14.69
In Stock
Bracket 5303296828
#10

Unit parts diagram

Bracket

Part #5303296828

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

Most common symptoms to help you fix your dehumidifiers

Choose a symptom to see related dehumidifier repairs.

View all

Why does my dehumidifier run all the time?

Main causes: dehumidifier too small for the space, bad humidity sensor, faulty evaporator thermistor, low refrigerant, b…

Read more

Why isn't my dehumidifier draining?

Main causes: clogged drain hose, drain hose not properly connected…

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Why won't my dehumidifier turn on?

Main causes: lack of electrical power, wiring failure, electronic control board failure, user interface control failure…

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Why is there frost on my dehumidifier's coil?

Main causes: room temperature below 65 degrees Fahrenheit, control system failure…

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Why isn't my dehumidifier's remote monitor working?

Main causes: weak or dead batteries, out of range, radio frequency interference…

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Why doesn't my dehumidifier remove moisture?

Main causes: dirty air filter, clogged grill, dehumidifier placed too close to the wall, dehumidifier too small for the …

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Why won't my dehumidifier run?

Main causes: collection bucket not installed, collection bucket full of water…

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Why is my dehumidifier noisy?

Main causes: loose fan motor mounting screws, loose compressor mounting bracket screws, bad fan, faulty compressor…

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Why does my dehumidifier leak water?

Main causes: collection bucket not installed correctly, cracked collection bucket, loose drain hose connection…

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Most common repair guides to help fix your dehumidifiers

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

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How to replace a dehumidifier sensor assembly

How to replace a dehumidifier sensor assembly

If the humidifier sensor doesn’t properly detect humidity or evaporator temperature, install a new sensor assembly, foll…

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Repair difficulty
Time required
 45 minutes or less
How to replace a dehumidifier user interface control board

How to replace a dehumidifier user interface control board

If the dehumidifier doesn’t respond when you try to set it, follow these steps to replace it.…

Read more
Repair difficulty
Time required
 30 minutes or less
How to replace a dehumidifier electronic control board

How to replace a dehumidifier electronic control board

If the dehumidifier won’t power up because the control board has failed, use the steps in this repair guide to replace t…

Read more
Repair difficulty
Time required
 45 minutes or less

Effective articles & videos to help repair your dehumidifiers

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

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Wiring schematic symbols explained video

Wiring schematic symbols explained video

Learn some of the most common symbols found in a wiring diagram and what they mean.…

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How to repair broken or damaged wires video

How to repair broken or damaged wires video

Learn how to repair broken, frayed or damaged wires in your appliances.…

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How to use a multimeter to test electrical parts video

How to use a multimeter to test electrical parts video

Learn how to use a multimeter to check for wiring problems in an appliance that's not working…

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