Chitu Systems FilaPartner E1: problems, parts and running costs

Checked: 2026-10-05

Summary

The most common gripe is layout, not failure: the 3.5-inch screen sits on the side, tiltable but not rotatable, it is the only con listed in either written review, and Chitu’s warranty calls the screen a consumable and excludes it. Real failure evidence is thin — one reader reports a chamber that stopped heating and a local seller refusing service — and the recurring practical annoyances are outlet tubes slipping out during long prints and a desiccant bay too small for the loose packs owners want to add. Running it is cheap: about 0.08 kWh a day, a few tens of cents a month, with desiccant and humidity cards regenerated by the drying heat and nothing on a replacement schedule. It is a good buy around $119.99 to $139 for someone drying two materials who wants the boxes as storage, and weak value above roughly $180.

Common problems and fixes

Screen is on the side and cannot be turned to face you — the 3.5-inch resistive touchscreen is tiltable but not rotatable, and that is the single con listed in the scored sections of both written reviews, plus the drawback one owner names after running it on top of a Prusa Core One. There is no fix; plan shelf space so you can read the side, and lean on the presets and the screen-off timer. [3][5][10]
The screen carries no warranty — Chitu states the LCD “doesn’t have a warranty, it is consumable” and that all screens are exposure-calibrated before leaving the factory, on a device whose only interface is that panel. Chitu will ship identified component faults free, but not the screen, so treat a dead panel as a paid repair. [2]
One chamber stopped heating — the only first-hand failure report found is a reader comment saying “mine stopped heating on the left side”, with a local seller declining both warranty repair and refund. Chitu’s own policy is better than that seller’s: a unit confirmed non-functional by the official after-sales team is replaced at no cost, an identified component fault such as the temperature/humidity circuit board ships free, boards carry one year, and you pay return shipping in the first three months and shipping plus parts from three to twelve months. One report is not a rate. [3][2]
Outlet tubes slip out during longer prints — The Gadgeteer reports the tubes sometimes pull free on long jobs and need frequent checks. Re-seat them before a long print and check again mid-run; owners have printed PTFE tube adapters rather than waiting on a listed spare. [4][9]
Desiccant bay is too small for the packs owners want — an owner in r/3Dprinting wants a printed holder for more loose desiccant than the supplied small bags allow, and the printed-accessory ecosystem has grown around that: roughly 29 user models in a Chitu E1 collection on MakerWorld, including desiccant and silica holders, PTFE tube adapters, a hygrometer holder and a screen cover. Print a holder rather than looking for a bigger bay. [8][9]
Temperature or humidity readings can be wrong — Chitu’s warranty page names inaccurate temperature or humidity readings as a recognised functional issue and answers it by shipping a replacement temperature/humidity circuit board free. No published test compares the on-screen chamber humidity with an independent hygrometer, so if the reading drives your auto-dry schedule, keep a cheap external meter in the box. [2]
Published temperature range and drying presets disagree — Chitu’s product copy says each chamber is settable from 45–70 °C, while the MatterHackers and First Quadcopter spec tables say 0–70 °C, and the recommended schedules differ again between Chitu’s page, the 3DJake listing and the reviews, one of which pairs 70 °C with 122 °F. Nobody states the true floor, so read the menu on the unit before planning a low-temperature dry and use its own presets rather than any transcription. [1][6][3][13][14]
Silent mode costs about 30% of heating efficiency — it slows the fan and cuts heating efficiency by roughly 30%, and the unit also drops into silent mode by itself once a drying cycle reaches target humidity, so a long unattended dry can run cooler than the set temperature suggests. Expect slower drying in that mode and re-check the filament before a long print. [7]

Parts and consumables

Expansion box, sold as the “One Dryer Box For FilaPartner E1” — $39.00 each in the Chitu store as reported in December 2025; that figure has not been confirmed since and no US price or part number is published. Each added box is two more spools of sealed storage on the same base, which is the reason to buy one. [11][3]
Silica gel desiccant packets (8 supplied) — reusable and regenerated by the heat of a drying run, so no replacement interval is published and there is no consumable spend. Owners who want more capacity than the small bay allows print their own holders. [1][7][8]
Humidity indicator card (1 per box, 2 supplied) — a passive three-spot card marked 30%, 40% and 50% that turns from brown to teal, reusable and regenerated by drying; it only tells you roughly how dry a sealed box is, so add a printed hygrometer holder if you need a number. [3][7][9]
Magnetic baffle plates (4 supplied) — snap over the air holes to seal a detached box for storage; no separate spare listing was found, and Chitu reships lost accessories with the buyer paying shipping. [7][2]
Silicone filament outlet tubes (4 supplied) — the parts owners report slipping out on longer prints; no replacement tube is listed anywhere, and the practical workaround is a printed PTFE tube adapter. [4][9]
Temperature/humidity circuit board — the one component Chitu names on its warranty page as a free replacement part for an identified fault, carrying one year of warranty; boards are the part to look for if a chamber will not hold temperature or the humidity readout looks wrong. [2]

Yearly running cost

Electricity is the only running cost that can be put a number on, and it is a rounding error. Chitu’s figures are 0.92 kWh over 11 days with 0.8 W standby, which works out to about 0.08 kWh a day and roughly 2.4 kWh a month — a few tens of cents a month at US residential rates, so the yearly total stays in the same small range. [1] There is no filter, no consumable and no subscription: the desiccant packs and humidity cards regenerate during a drying run, so nothing is on a purchase schedule. [7][3] The real ongoing spend is filament, then storage — an expansion box at $39.00 as reported in December 2025 is a one-off per two extra spools, not a yearly line, and it is the number to check before budgeting a second box. [3][11] Treat the electricity figure as manufacturer-reported: Chitu attributes it to 3ddrucklife data and that underlying test was not read, so the per-year cost is a few tens of cents on a claim, not a measurement. [1]

When it is a good buy

Around $119.99 to $139: strong value. The base unit with two boxes was listed at $139.00 at MatterHackers and at $119.99 on the Chitu homepage in October 2026, and both written reviews quote $139. [6][16][4]
$139 to about $180: fair. You are paying for the detachable boxes and per-chamber control, and the 240 W rating from two 120 W PTC heaters sits below the 350 W top of the category. [3][15]
Above roughly $180: weak value. Chitu’s own product page showed $177.99 reduced from $218.00 in October 2026, and a September 2025 Gear Diary review quoted $178.00 as retail, where a single-chamber dryer plus separate dry boxes can cost less in total. [1][5]
Budget check for a second box: $39.00 each as reported in December 2025, unconfirmed since. [3][11]

Alternatives named in the comparison set First Quadcopter used — Creality Space Pi X4, Sovol SH03, Sunlu S4, Caydo and BIGTREETECH ViViD, a $66 to $199 band — are cheaper or similar and none has chambers that detach into standalone storage boxes. [3] Pick the Sunlu S4 if you dry one material at a time and simply want the whole box hot, since it heats the entire box even for a single spool. [3] Pick a single-chamber dryer plus separate dry boxes above roughly $180. [1][3] Pick the E1 when you genuinely dry two materials at different temperatures, feed printers straight from the unit, and want the boxes as storage afterwards — one owner runs it as an active dryer with multi-channel feeding while printing ABS, which is the use case the four outputs per chamber exist for. [12] If you already own a plain dehydrator, expect the gain here to be storage and reviving wet filament, not speed: the reviewer who dried a year-old opened, unsealed PLA spool for five hours and cleared up heavy stringing still declined to claim the E1 dries better or faster than an ordinary dehydrator. [3]