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Frigidaire
Dehumidifier

Model # MDDQ40FF3 Official Frigidaire dehumidifier - p5995304895

Here are the diagrams and repair parts for Official Frigidaire MDDQ40FF3 dehumidifier - p5995304895, 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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Showing 10 of 42 parts  |
Nameplate 3273000055
#27

Cabinet front and wrapper diagram

Nameplate

Part #3273000055

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

Strainer 53032903575

#NI

All parts diagram

Strainer

Part #53032903575

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

Compressor 53033212615
#34

Unit parts diagram

Compressor

Part #53033212615

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

Indicator Light 3271017015
#10

Cabinet front and wrapper diagram

Indicator light

Part #3271017015

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

Screw,truss Head ,8-18ab X 0.47 53030154275
Screw,truss head ,8-18ab x 0.47

Part #53030154275

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

Capillary Tube 53080171205
#30

Unit parts diagram

Capillary tube

Part #53080171205

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

Washer,compressor 080029565
#36

Unit parts diagram

Washer,compressor

Part #080029565

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

Float 53032725205
#32

Unit parts diagram

Float

Part #53032725205

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

Switch-auto Shut Off,bucket 53080164375
#21

Unit parts diagram

Switch-auto shut off,bucket

Part #53080164375

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

Panel,cabinet Front 3276021115
#8

Cabinet front and wrapper diagram

Panel,cabinet front

Part #3276021115

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.

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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…

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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.…

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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…

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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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