Model comparisons
Frigidaire legacy 50-pint models: DUD, DWD and DWDE
Older 50-pint labels can make appliances look interchangeable when the practical questions are cabinet fit, exact control generation and where water can go. FAD504DUD is an older tall-cabinet model; FAD504DWD and FAD504DWDE are separate, later-listed suffixes on a shared 2020 sheet. All three have a documented bucket or lower-gravity discussion, but no pump-lift plan should be inferred from their common capacity label.
FAD504DUD is a separate, older tall-cabinet model
The discontinued FAD504DUD is not the DWD/DWDE variant. Its exact 01/13 Frigidaire specification sheet gives a 24-3/4-inch height, 16-1/8-inch width, 11-5/16-inch depth, two fan speeds, R134a and an EEV of 1.6 L/kWh. It lists the same nominal 50-pint/day rating and a 16.3-pint front bucket, but its control and refrigerant details differ from the 06/20 DWD/DWDE sheet. Do not use a shared pint rating as evidence of identical size, electrical draw or replacement parts.
The exact FAD504DUD support page also links a June 2009 guide. Its cover is generic, so use it as operating guidance through that exact link rather than a model-specific component catalog. Its bucket and lower-gravity procedure is documented; an uphill pump route, bucketless setup and exact dry weight are not. The specification sheet’s approximately 41-pound shipping figure is not a dry-unit weight.
Start with the exact rating-plate suffix
The two FAD codes remain distinct identities even though Frigidaire’s exact support pages link both to one sheet that lists them together and to the same June 2009 owner’s guide. The sheet calls the shared configuration a 50-pint dehumidifier and lists a 16.3-pint front bucket. The DWD support page shows a 37-pound product weight; the DWDE page does not show that measurement, so do not apply it to both without checking the specific appliance documentation.
Choose a route for the water
With the bucket installed, the guide says the unit stops when the bucket is full; emptying and reseating it restarts collection. A gravity hose can reduce carrying trips if a lower drain is nearby. The manual calls for a garden hose, recommends at least 1/2-inch diameter, and says to avoid kinks or elevated sections. It does not describe pump lift or bucketless operation. If a drain sits above the machine or must pass through a high window, do not assume this old model can reach it.
When comparing current appliances, separate bucket, gravity and powered-pump plans. For example, the reviewed FHDD5033Y1 documents a no-pump bucket/gravity configuration, while the FHDP5033Y1 has its own specified pump route and limit. Those current model-specific limits do not transfer to FAD504DWD or FAD504DWDE.
Account for care and placement
The older guide calls for a level floor, at least 12 inches of clearance, and filter cleaning every two weeks in normal conditions. Its stated operating range is 41–96°F. The shared 2020 sheet lists a digital humidity readout, timer, washable filter, and 51 dBA high-fan rating; it reports EEV, an older measure that should not be mistaken for the IEF printed on later sheets. It also lists three fan speeds, whereas the linked 2009 instructions describe high and low. Treat that discrepancy as unresolved when inspecting an existing unit.
All three exact product-support pages mark their models discontinued. Use the FAD504DUD assessment or the FAD504DWD/DWDE assessment to interpret an existing model number, not to infer present availability or parts support. If you need a new dehumidifier, compare the exact manuals for currently listed options and measure the drain path before choosing a pump.