Roborock F25: problems, parts and running costs

Checked: 2026-10-19

Summary

The base F25 washes its roller at 90°C and dries it on the dock — 5-minute fast or 20-minute quiet — which a former Dyad owner called “a huge upgrade over the dyad for lack of maintenance alone” [5]. The problems to plan for are mildew if the roller is not dried, dirt stuck between the rollers, and at least one reported leak [5]. Yearly running cost is filters, cleaning solution and an eventual battery; the only published replacement cost is £19.99 for two filters at Roborock’s UK store [8]. It is the right buy when you want the core package — 20,000 Pa suction, JawScrapers, FlatReach 2.0, a self-washing dock — without paying for steam, app control or powered wheels.

Common problems and fixes

Mildew smell if the roller stays wet — mildew develops if the roller is not removed and dried on a rack after use [5]; the dock’s 90°C wash and hot-air drying are what keep it away [4][5]. Fix: remove and air-dry the roller after each use.
A leak was reported — at least one leak case appears in the main owner discussion thread; no cause or failure rate is documented [5].
Clean water tank is awkward to remove while docked — the low tank position, praised for easier refilling, makes removal awkward when the vacuum sits on the dock [5].
Features missing versus seller claims — the base F25 has no SlideTech 2.0, no app control and no detergent tank; Roborock restricts those to the F25 ALT and F25 ACE, so listings that claim them for the base F25 are wrong [2][10]. No US warranty duration is published for the base model.

Parts and consumables

Filter — included; rinse with cold water if very dirty, and clean the clean tank every 2-4 weeks per the manual [3]. Replacement price: £19.99 for 2 at Roborock’s UK store, listed for the F25 GT with no date published [8]. No official US parts catalogue for the F25 series was found [9]. Replacement interval is not published.
Maintenance brush — included, for the roller and dirty-water pathway [1][3].

Yearly running cost

Yearly components: replacement filters (UK price £19.99 for two; no US price published [8]), cleaning solution refills (one bottle included, refill price not reported [1]), and eventual battery replacement (price not published; the manual says charge at least once every 3 months to avoid overdischarge [3]). The dock’s self-wash and drying cycles consume water and electricity that the sources do not quantify. Yearly total: Not enough data — the inputs publish no US filter price, no solution refill price and no battery price.

When it is a good buy

US pricing: the step-down F25 LT is listed at $199.99, down from $349.99 (Roborock US store, October 2026) [6]; the base F25 sits near it in the lineup. In Australia the F25 listed at $399 AUD before being discontinued [7].

Around $200-350: the right band for the core package; it competes with the Tineco Floor One S7 Pro and S3 [6][13].
Above $400: the F25 ACE or F25 Ultra are better documented choices — the ACE adds app control, a 100 ml detergent tank and SlideTech 2.0 [10], and the Ultra adds 22,000 Pa suction with steam and hot-water cleaning [4].

Alternatives:

Roborock F25 ACE — the better choice when you want app control, a detergent tank or SlideTech 2.0 powered wheels [10].
Roborock F25 Ultra — the better choice when you want the strongest cleaning in the series, with steam and hot-water modes [4].