Honeywell TPFIT50PWK: problems, parts and running costs
Checked: 2026-10-18
Summary
A 50-pint portable dehumidifier with a built-in 15 ft drain pump for damp basements and other large spaces up to 4,000 sq ft. The recurring problem is the E3 refrigeration-protection error, which multiple owners hit after roughly a year of use, and the official warranty is 1 Year Limited. Running cost is electricity only — the 710 W draw, with no filters to buy.
Common problems and fixes
- E5 error (abnormal pump drainage) — often caused by incorrect tube installation, a clogged pump filter, or non-original tubing. Cleaning the pump filter and using the original Honeywell auto-drain pump tube prevents it. [11]
- Built-in pump reliability — Dehumidifier Buyers Guide cautions that built-in pump dehumidifiers tend to have higher pump failure rates and recommends external condensate pumps as more durable alternatives. [13]
- No independent lab test of this exact model — Consumer Reports tested the older DH50PW and TP50WKN, not the TPFIT50PWK, so water-removal accuracy, efficiency and humidistat accuracy are unverified. [8][9]
Parts and consumables
- Washable filter — no part number given; Honeywell recommends washing it every two weeks during consistent operation, and the unit has a filter-check indicator. No replacement filter purchases are needed. [7][3]
- Auto-drain pump tube — the original Honeywell tube, 16 ft (5 m) max; a non-standard tube can trigger an E5 error. Included with the unit. [11][1]
Yearly running cost
Electricity is the only recurring cost: the 710 W draw adds to the power bill for every hour it runs, and there are no subscription or app-connector fees. The filter is washable, so there are no replacement filters to buy. No electricity rate is reported, so a yearly dollar figure cannot be computed.
When it is a good buy
At $379.99 (Honeywell Air Comfort, October 2026) or the $380 Honeywell store price Tom’s Guide reported in September 2024, the 50-pint capacity, 15 ft pump and Most Efficient certification hold up. Between $380 and $420 the case weakens — the Honeywell Store lists it at $419.95, marked down from $499.95 (October 2026), and the 1-year warranty, the untested exact model and the E3 pattern all bite harder. Above $420 it is hard to recommend unless 50 pints, a 15 ft pump and Most Efficient certification are all required. The non-pump TPFIT50WK is the better choice when you do not need to lift water 15 ft, offering similar core performance at a lower price. [7][16][17][4]