Roborock robot vacuum repair
Roborock repair: LiDAR turret bearings (Error 1/21), mop module and dock-station pumps, custom Li-ion battery rebuilds.
Roborock repairs at our bench tend to cluster around three areas. First, the LiDAR turret bearing on S5, S6 and S7 grinds out after a few years and the robot stops mapping — Error 1 or 21, the top spins with a whine. Second, on S7 MaxV Ultra, S8 Pro Ultra and Q Revo the mop module pump runs dry or the dock pumps fail from limescale, and the mop stops wetting. Third, the Li-ion pack loses capacity and the robot refuses to leave base.
We rebuild turret bearings rather than swap the whole module, descale the dock and mop lines, and assemble custom Li-ion battery packs — 6-month warranty on the pack, 3 months on everything else.
Popular models we repair
- Roborock S8 Pro Ultra
- Roborock S8 / S8+
- Roborock S7 MaxV Ultra
- Roborock Q Revo / Q Revo Pro
- Roborock Q7 Max+
- Roborock Q5 Pro+
- Roborock S5 Max
Common problems we fix
- Worn LiDAR turret bearing — noisy rotation or full stop (Error 1, Error 21), common on S6 and S7
- Bumper stuck, navigation fault — Error 2
- Main brush or side brush jammed — Error 5, Error 6
- Wheel stuck or robot suspended in mid-air — Error 3, Error 7
- Mop module pump failure on S7 and S8 — pump running dry
- Dock-station water pump issues on Q Revo and S8 Pro Ultra — water not delivered or drained
- Cliff sensor error due to dust build-up — Error 4
- Fan / suction motor failure — Error 18, weak suction
- Battery will not hold a charge, Error 12 (low battery)
Detailed problem guides
Pick a symptom — we walk through the causes, what you can check yourself, and when to bring it in.
Roborock error code decoder
Roborock error codes make it easy to narrow down what is wrong. Error 1 and Error 21 are the classic S6 and S7 fault — a worn LDS/LiDAR turret bearing, so the tower no longer spins smoothly. Error 2 means the bumper is stuck, Error 3 that a wheel is suspended in mid-air or jammed, and Error 5 and Error 6 appear when the main or side brush is blocked by hair and fibres.
Error 12 warns about a low battery and often points to worn-out cells, while Error 18 is a suction motor failure or a blocked airway. The newer Q Revo and S8 Pro Ultra dock stations have their own fault set — water pump failures, clogged valves and limescale deposits on level sensors. We verify every code during diagnostics at the service centre and explain exactly what needs to be replaced.
LiDAR turret rebuild and mop system repair
The two most common Roborock jobs are the LiDAR turret rebuild and the mop system repair. For the turret we open the tower, replace the worn bearing, reseat the laser module correctly and recalibrate navigation — after the job the robot maps rooms accurately again and moves without stalling. This repair is especially relevant on the S5, S6 and S7 series.
Mop module feed pumps and dock-station water pumps on the S7 MaxV Ultra, S8 Pro Ultra and Q Revo usually suffer from limescale and dry running. We descale the system, replace failed pumps, fit new O-ring seals and check for leaks. We also build extended-capacity Li-ion batteries, with a 6-month battery warranty.
Pricing & warranty
Fast on-site diagnostics. Repair price quoted after inspection. Repair warranty: 3 months. Battery replacement warranty: 6 months.
If the repair cost changes during the process, the technician will call to agree on the new price. No work is done without your consent.
Frequently asked questions
Why customers choose SATER
- We repair all 96 robot vacuum brands. iRobot, Roborock, Dreame, Ecovacs, Xiaomi, Samsung and dozens more — we know the specifics of each.
- Custom-manufactured batteries. We build battery packs from Sony, Samsung, LG cells — no cheap knock-offs.
- 6-month warranty on battery replacement. Every battery we build comes with a written warranty.
- 30+ years of experience. The service centre has been operating since 1993.
- We serve all of Latvia. Electronics service centre in Riga — we accept devices from anywhere in the country.