Honeywell portable dehumidifiers (TP30 / TP50 / TP70 and DH70 series): quick sheet

Covers: Honeywell-branded portable dehumidifiers sold at big-box stores: TP30, TP50, TP70 (incl. TP50PWKNN, TP70PWKN, TP70PWK pump models, TP70AWKN smart model) and DH-series (e.g. DH70PWKN). Tanks about 3.3-6.8 L.

Single sourceBrands: Honeywell7 components

Very common rental-property and basement unit. Honeywell's support data has a short code list; E3 is about environment (too hot, or recently moved) rather than a failed part, and several 'faults' are tank seating, drain setup or the DH-series 1-hour rest after 24 hours of running.

Safety first

Unplug before handling the tank pump or filter.
Sealed-system faults are blocked (EPA 608).

How it works

Compressor and fan dehumidify within a room-temperature window of about 41-89 F (5-32 C).

Water collects in a tank with a float switch, drains by gravity through a hose (must slope down all the way, kept short), or is pushed by a built-in pump on PWK models up to about 16 ft.

The fan can keep running several minutes after the compressor stops; a 5-8% difference from a separate hygrometer is treated as normal.

DH-series units take a rest of about 1 hour after 24 hours of operation (shown as SA) and restart on their own.

Components & tests

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Official manufacturer documentation

Always confirm values against the tech sheet for the exact model.

Honeywell portable dehumidifier support

OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work. © 2026 OnCall Tech. Original content; not a reproduction of any manufacturer document.Generic part photos (not of this brand): Close view of the louvered air outlet of a portable air conditioner by Curpharar, CC BY-SA 4.0

Diagnostic guides for this appliance

Guide · Dehumidifier

Dehumidifier error codes: general approach (sensor, bucket, pump)

Most portable dehumidifiers share the same code groups: sensor faults (E1/E2/EH), bucket (P1/FL), pump (E5/P2) and refrigeration protection (E3/EC). Power-cycle and basic checks fix many; sensor faults need a part.

4 steps ~30 mineasy

Guide · Dehumidifier

Dehumidifier won't turn on (no display)

Check outlet, cord and any reset button first. Then internal fuse, transformer (on some whole-house units) and the control board.

4 steps ~45 minmoderate

Guide · Dehumidifier

Dehumidifier humidity reading wrong or runs nonstop

Compare against a known-good hygrometer. A dusty or failed humidity sensor, a set point too low for the space, or an undersized unit makes it run nonstop.

3 steps ~30 mineasy

Other dehumidifiers manuals

Manual · Dehumidifier

Midea Cube dehumidifiers (MAD20S1QWT / MAD35S1QWT / MAD50S1QWT): quick sheet

Midea Cube 20, 35 and 50-pint portable dehumidifiers, with and without built-in pump. Midea has shipped more than one control-board generation under similar model numbers, so read the code set shown on the display.

8 components6 common failuresMidea

Manual · Dehumidifier

GE portable dehumidifiers (AHM / AHK series and APER / APHR 50-pint): quick sheet

GE portable dehumidifiers: older AHM30/40/65 and AHK30/40/50/65 families, and newer APEL/APEW/APER 50 and APHR50 (built-in pump). Code tables differ between generations; confirm on the model's owner's manual.

7 components5 common failuresGE

Manual · Dehumidifier

LG PuriCare dehumidifiers (UD501KOG5 and similar 50-pint): quick sheet

LG PuriCare portable dehumidifiers such as UD501KOG5 (discontinued at several retailers) and later 50-pint PuriCare models. LG uses CH-prefixed fault codes.

6 components5 common failuresLG