Dreo HM713S: problems, parts and running costs
Checked: 2026-10-25
Summary
Dreo HM713S owners most often report water leaks, auto on/off cycling, and white dust with hard tap water. Keeping it running costs little beyond electricity and optional consumables: cool mode draws 22-26 W, warm mode 240-280 W, with an optional demineralization cartridge every 2-3 months. It is a good buy near $90 and weak above about $110, where Levoit LV600S or Classic 300S become the better choice.
Common problems and fixes
- Auto on/off cycling and shutoff while water remains — owners report the unit cycling or shutting off even with water left in the tank, possibly from the humidity sensor or auto mode. Try manual mode or adjust the target humidity; no permanent fix is documented. Warranty coverage is not stated for this behavior. [8]
- Humidity sensor reads low and wanders — in one five-month side-by-side test the sensor read about 1 to 1.4 points below target and swung more than a Levoit rival. Use an external hygrometer if precise control matters. Not stated as a covered defect. [3]
- App and voice control gaps — the app lacks a clean humidity-history graph and low-water alerts arrive late; Alexa routines fired in 43 of 50 tests versus 47 of 50 for the rival. Keep the app and firmware updated and set alerts early. Not a hardware defect. [3]
- White dust with hard tap water — ultrasonic mist leaves mineral residue on surfaces. Use distilled or purified water or the optional demineralization cartridge. This is a water-quality issue, not a defect covered by warranty. [5][9]
- High power draw in warm-mist mode — warm mode draws about 240-280 W versus 22-26 W in cool mode, raising energy use. Reserve warm mist for the coldest, driest nights and run cool mode otherwise. Not a defect. [3][5]
Parts and consumables
- Replacement tank, base, or electronics — no HM713S spare-parts catalog is published; repair is typically via warranty exchange. [1][9]
- No filter subscription — none required. [5]
Yearly running cost
Not enough data for a dollar total: no electricity rate or annual usage hours are given in the sources. The recurring items are electricity (cool mode 22-26 W, warm mode 240-280 W [3][5]), an optional demineralization cartridge every 2-3 months in hard water [5][7][9], aroma-pad 24-packs as needed [5][7], descaler and cleaning supplies [5][9], and distilled or purified water in hard-water areas [5][9]. No filter subscription is required [5].
When it is a good buy
- Dreo’s own page lists $89.99 for Silver/White [1]; TheTestedHub pulled $89.99 as of Jun 21, 2026 [3]; Dreo direct listed $89.99 in 2023 [8]; SmartHomeExplorer cites about $90 [6].
- Value bands from the five-month test: at $80 or less strong value; $81-95 the tested sweet spot; $96-110 fair; $111-130 weak-to-fair; above $130 generally weak. [3][5][6][8]
- Levoit LV600S or Classic 300S are the better choice when you want a more polished app, tighter humidity accuracy, or stronger long-term support, especially above about $110. [3][5]