Frigidaire FFAD5033W1 50-Pint Dehumidifier: problems, parts and running costs

Checked: 2026-10-18

Summary

Frigidaire’s 50-pint compressor dehumidifier (545 W, three fan speeds, 47-51 dBA, 2.1-gallon front bucket) has a fully published spec sheet and light upkeep, but owner threads show recurring coil-icing and EC fault-code reports, and Frigidaire marks the model discontinued [1] [3]. Retail listings disagree on coverage — Home Depot titles say 1,200 sq ft, Lowe’s frames it for rooms 3,001+ sq ft — while Frigidaire publishes no coverage area at all [7] [8] [9]. Running cost is electricity; no replacement part prices were documented.

Common problems and fixes

Coil icing at ordinary basement temperatures — owners report ice on the rear refrigerant coil at roughly 65-68 °F, one after three years of normal use and one after only a few months [3]. The manual’s frost guidance covers only the first 60 minutes after start-up and a 41 °F floor, so persistent icing at 65 °F is not explained by the documentation [2]; persistent icing routes to an authorized service center.
EC fault code — the second-largest cluster; 21 owners marked the same EC question, with the unit shutting down until unplugged and replugged [3]. The manual’s remedy is to verify outlet voltage (115 V ±10%) and ambient 41-89 °F, unplug and replug; if EC persists, contact an authorized Frigidaire service center [2].
Continuous drain that does not drain — a hose attached but the bucket still filling and the unit shutting off; six owners marked the same question [3]. This model has no pump: the documented setup is gravity only, a 1/2 in (12.7 mm) or larger hose with no kinks or elevations and a secure seal [1] [2].
AS and ES sensor codes — documented fault codes for sensor failure; the manual routes them to an authorized service center [2].
“FO” code — appears in owner reports after removing and reinstalling the filter but is not in the manual’s fault-code section, so treat it as unverified [2] [3].
Filter location confusion — one of the most-asked owner questions, with 50+ same-question marks; the filter sits behind the back grille and washes with clean water [2] [3].
No drain pump — owners expecting pump behaviour get a full bucket instead; the spec sheet says Pump Feature: No [1] [3].

Parts and consumables

Rear drain connector with drain cap — included per the manual’s item list [2].

Yearly running cost

Electricity is the only recurring cost: the unit’s rated maximum draw is 545 W, though actual consumption is duty-cycled and depends on load and fan speed; no kWh/year figure was published for this model, so a yearly dollar cost cannot be computed from sources [1]. Add the garden hose if you want continuous drain, and a replacement filter only if the washable one is lost [2].

When it is a good buy

At original retail, weigh the missing independent test data and the icing and EC complaint cluster, and confirm stock age and warranty-start dates given the discontinued status; Wirecutter reports that across the category a steady 8% to 12% of owners on retailer comment boards report the machine failing within about a year [10]. Do not pay extra expecting a pump — the spec sheet says Pump Feature: No [1].

Named alternatives: the Midea 50 Pint Cube — Wirecutter’s tested quietest 50-pint machine at 51 dBA from 6 feet on high and 460 W measured on high, with a 4.25-gallon bucket — is the better choice when independent-test backing and fewer bucket empties matter more than this unit’s gravity-drain simplicity [10]. Commercial-grade whole-home units, which Wirecutter puts at about $1,400 for a 70-pint machine with five-year warranties, are the better choice when a portable has repeatedly failed [10].