Robot vacuum cleans poorly, weak suction, motor hums but barely pulls air, burning smell appeared, device shuts down during operation or shows Error 3/4/17/18 — in most cases the problem is in the suction motor (main motor). Suction motor repair restores factory-level suction power without expensive block replacement. Grade service in Khmelnytskyi performs repair and replacement of suction motors on robot vacuums Xiaomi, Roborock S/Q series, Dreame, Ecovacs Deebot, iRobot Roomba, Eufy, Viomi, Philips, Tefal and other brands: cleaning from dust/hair, bearing restoration, brush/impeller/winding repair or full motor replacement with subsequent power & balance testing.
What the Service Includes
Suction motor (main motor) repair includes:
- Full robot disassembly: access to motor block, flex cable & battery disconnection
- Suction motor removal from housing and impeller
- Deep motor cleaning: removal of hair, dust, threads, fur from impeller & bearings
- Condition diagnostics: winding resistance measurement, bearing inspection, shaft runout check
- Bearing restoration: lubrication or replacement (if play or noise present)
- Replacement of worn brushes (for brushed motors) or repair of brushless BLDC motors
- Impeller balancing to reduce vibration & noise
- Full motor replacement (original or quality analog with matching specs: 14.4–14.8V, 300–500W, RPM)
- Post-repair testing: suction power measurement (Pa), noise level, temperature, stability under load
- Control board compatibility check & overload absence verification
When You Need the Service
Suction motor repair is required when:
- Significant drop in suction power (cleans poorly even at max power)
- Motor hums/whistles but air flow almost absent
- Burning plastic or winding smell during operation
- Robot shuts down after 1–3 minutes of cleaning (overheat protection)
- Errors Error 3, 4, 17, 18 (motor or overload issues)
- Strong vibration, unusual noise, impeller wobble or shaft play
- After hair/threads/fur ingress motor clogged and lost efficiency
Work Stages
- Initial diagnostics: owner interview, suction power testing, error log reading
- Robot disassembly & suction motor block removal
- Deep motor & impeller cleaning from hair, dust, debris
- Diagnostics: winding resistance measurement, bearing check
- Restoration: bearing lubrication/replacement, impeller balancing
- Full motor replacement (if restoration impossible)
- Reassembly & bench testing: Pa measurement, noise, temperature
- Full cleaning cycle testing in real conditions: base return check
- Final verification & client report
Why Choose Grade in Khmelnytskyi
Grade has experience repairing and replacing suction motors on most popular robot vacuum models, using professional equipment and quality components. Clients note restoration of factory suction power and reduced noise post-repair. Additional services include laptop repair, PC repair, phone repair, TV repair, coffee machine repair, charging station repair, robot vacuum repair. Reviews — here.
Address: Khmelnytskyi, Panasa Myrnoho str., 31/3
Schedule: Mon–Sun 11:00–20:00
Phone: +380 97 719 4430
Telegram: Telegram
Easy from anywhere in Ukraine
Not in Khmelnytskyi? Ship your robot vacuum via Nova Poshta. After suction motor repair the device returns with restored suction power. Details on the Nova Poshta delivery page.
