MDH40WW2 Frigidaire Dehumidifier - Overview

Diagrams for MDH40WW2

See every part. Know exactly what you need.

Parts for the MDH40WW2

$5.95

Red Indicator Light Lens

Part #318250801

$51.67

Compressor Start Relay

★★★★★

(1)

Part #216594300

$30.95

SCREW

★★★★★

(1)

Part #134178901

Humidistat Control

Part #5303296823

This control needs to be replaced if the dehumidifier won't shut off.

$94.21

Float

Part #5303306080

Water Container Reservoir

Part #5303303883

This container no longer includes the float. Must order float separately.

$21.95

SCREW

Part #5303007620

KNOB-CONTROL

Part #309306905

This control knob is a little over an inch in diameter. It is beige in color and is made of plastic. This knob has a blue indicator line, and will accept a 'D' shaped shaft.

$18.95

NUT

Part #08007481

Auto Shut Off Switch

Part #5308016437

FAN BLADE

Part #5308016448

BRACKET-MOTOR

Part #5303296828

Common Symptoms of the MDH40WW2

How this model fails, and the parts that fix it.

Repair Tips From Fixers Like You

See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

The compressor would not run.

18 of 27 people found this instruction helpful.

Linda from Gurnee, IL
Easy
30 - 60 mins
Screw drivers

I removed the cover, used a multimeter to test the compressor circuit, and found the compressor start relay to be defective.
Ordered a new one and installed it when it arrived.

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This dehumidifier is the best we have ever had but the water reservoir container split and the float broke off.

13 of 19 people found this instruction helpful.

Shelah from Grove City, OH
Really Easy
Less than 15 mins

Never dreaming I could find a replacement, I went searching on the internet anyway and found the model which had been discontinued however the container and float were still available. It took two minutes to put the new float in and the reservoir container on the unit. It works great!!!

Other Parts Used:

Float

Water Container Reservoir

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Compressor was short cycling

12 of 17 people found this instruction helpful.

Sherman from Tuttle, OK
Easy
30 - 60 mins
Screw drivers

Removed the cowling with a square drive screw driver, removed the spring clip from the cover of the compressor controls with a screw driver, pulled off the old compressor start relay and replaced it with the new part. Since other problems could have caused the compressor to short cycle this was a "replace the part and hope it would work" ... Read more

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