MDH40WW2 Frigidaire Dehumidifier - Overview

Sections of the MDH40WW2

[Viewing 7 of 7]
Keep searches simple, eg. "belt" or "pump".
Red Indicator Light Lens – Part Number: 318250801
Red Indicator Light Lens
PartSelect #: PS2349641
Manufacturer #: 318250801
$5.95
  Special Order
Compressor Start Relay – Part Number: 216594300
Compressor Start Relay
★★★★★
★★★★★
(1)
PartSelect #: PS426380
Manufacturer #: 216594300
$50.69
  Special Order
SCREW – Part Number: 134178901
SCREW
PartSelect #: PS815505
Manufacturer #: 134178901
$27.85
  In Stock
Float – Part Number: 5303306080
Float
PartSelect #: PS464564
Manufacturer #: 5303306080
$71.66
  Special Order
Humidistat Control – Part Number: 5303296823
Humidistat Control
PartSelect #: PS462294
Manufacturer #: 5303296823
This control needs to be replaced if the dehumidifier won't shut off.
  No Longer Available
Water Container Reservoir – Part Number: 5303303883
Water Container Reservoir
PartSelect #: PS463946
Manufacturer #: 5303303883
This container no longer includes the float. Must order float separately.
  No Longer Available
NUT – Part Number: 08007481
NUT
PartSelect #: PS411964
Manufacturer #: 08007481
$12.62
  Special Order
Auto Shut Off Switch – Part Number: 5308016437
Auto Shut Off Switch
PartSelect #: PS474326
Manufacturer #: 5308016437
  No Longer Available
FAN BLADE – Part Number: 5308016448
FAN BLADE
PartSelect #: PS474328
Manufacturer #: 5308016448
  No Longer Available
KNOB-CONTROL – Part Number: 309306905
KNOB-CONTROL
PartSelect #: PS434929
Manufacturer #: 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.
  No Longer Available
SCREW – Part Number: 5303007620
SCREW
PartSelect #: PS453327
Manufacturer #: 5303007620
$16.95
  Special Order
SCREW – Part Number: 3002801
SCREW
PartSelect #: PS432190
Manufacturer #: 3002801
$9.95
  Special Order

Questions And Answers for MDH40WW2

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Common Symptoms of the MDH40WW2

[Viewing 2 of 2]
Won’t start
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Will Not Start
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Fixing
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
The compressor would not run.
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.
Parts Used:
Compressor Start Relay
  • Linda from Gurnee, IL
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
18 of 27 people found this instruction helpful.
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This dehumidifier is the best we have ever had but the water reservoir container split and the float broke off.
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!!!
Parts Used:
Float Water Container Reservoir
  • Shelah from Grove City, OH
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    Less than 15 mins
13 of 19 people found this instruction helpful.
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Compressor was short cycling
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" since that would be the most common reason and it was not a very expensive part.
Parts Used:
Compressor Start Relay
  • Sherman from Tuttle, OK
  • Difficulty Level:
    Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers
12 of 17 people found this instruction helpful.
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Thank you for voting!