error-42 Troubleshooting

Error 42 — maintenance brush jammed on the Roborock Q Revo MaxV

Source: Roborock Support Center — troubleshooting Confidence: 85% Verified Aug 9, 2026

The maintenance brush is jammed and needs to be cleared.

How to fix Error 42 — maintenance brush jammed

Clear the maintenance brush

Remove the maintenance brush, clear any hair or debris, and reinstall it.

Source: Roborock Support Center — troubleshooting Confidence: 85% Verified Aug 9, 2026
Difficulty: ★ Est. 5 min

Parts needed: Roborock S8 MaxV Ultra Main Brush Roller, Roborock Q Revo Main Brush Roller, Roborock Q Revo MaxV Cleaning tool, Roborock Q Revo Pro Main Brush Roller, Roborock Q Revo MaxV Main Brush Roller, Roborock S7 Main Brush Roller, Roborock S7 MaxV Main Brush Roller, Roborock S7 MaxV Ultra Main Brush Roller, Roborock S7 Pro Ultra Main Brush Roller, Roborock S6 MaxV Main Brush Roller, Roborock Saros 10 Main Brush Roller, Roborock Saros 10R Main Brush Roller, Roborock Saros Z70 Main Brush Roller, Roborock S8 Pro Ultra Main Brush Roller, Roborock S8 Main Brush Roller

Replace the brush

If the brush is worn, replace it with a genuine one.

Source: Roborock Support Center — troubleshooting Confidence: 85% Verified Aug 9, 2026
Difficulty: ★ Est. 5 min

Parts needed: Roborock S8 MaxV Ultra Main Brush Roller, Roborock Q Revo Main Brush Roller, Roborock Q Revo MaxV Cleaning tool, Roborock Q Revo Pro Main Brush Roller, Roborock Q Revo MaxV Main Brush Roller, Roborock S7 Main Brush Roller, Roborock S7 MaxV Main Brush Roller, Roborock S7 MaxV Ultra Main Brush Roller, Roborock S7 Pro Ultra Main Brush Roller, Roborock S6 MaxV Main Brush Roller, Roborock Saros 10 Main Brush Roller, Roborock Saros 10R Main Brush Roller, Roborock Saros Z70 Main Brush Roller, Roborock S8 Pro Ultra Main Brush Roller, Roborock S8 Main Brush Roller

Replacement parts for the Roborock Q Revo MaxV

Roborock Saros 10 Replacement Battery Roborock Saros Z70 Replacement Battery Roborock S8 Filter Roborock S8 Left side brush Roborock S8 Side brush set Roborock S8 Mop pad (4-pack) Roborock S8 Pro Ultra Filter Roborock S8 Pro Ultra Left side brush Roborock S8 Pro Ultra Right side brush Roborock S8 Pro Ultra Side brush set Roborock S8 Pro Ultra Mop pad (4-pack) Roborock S8 Pro Ultra Mop Pad Roborock S8 Replacement Battery Roborock S8 Mop Pad Roborock S8 Right side brush Roborock S8 MaxV Ultra Filter Roborock S8 MaxV Ultra Left side brush Roborock S8 MaxV Ultra Right side brush Roborock S8 MaxV Ultra Side brush set Roborock S8 MaxV Ultra Mop pad (4-pack) Roborock Q Revo Filter Roborock Q Revo Left side brush Roborock Q Revo Right side brush Roborock Q Revo Side brush set Roborock Q Revo Mop pad (4-pack) Roborock S8 MaxV Ultra Main Brush Roller Roborock S8 MaxV Ultra Mop Pad Roborock Q Revo Main Brush Roller Roborock Q Revo Mop Pad Roborock Q Revo Pro Filter Roborock Q Revo Pro Left side brush Roborock Q Revo Pro Right side brush Roborock Q Revo Pro Side brush set Roborock Q Revo Pro Mop pad (4-pack) Roborock Q Revo MaxV Filter Roborock Q Revo MaxV Left side brush Roborock Q Revo MaxV Right side brush Roborock Q Revo MaxV Brush guard Roborock Q Revo MaxV Side brush set Roborock Q Revo MaxV Cable organizer Roborock Q Revo MaxV Cleaning tool Roborock Q Revo Pro Replacement Battery Roborock Q Revo Pro Main Brush Roller Roborock Q Revo Pro Mop Pad Roborock Q Revo MaxV Main Brush Roller Roborock Q Revo MaxV Charging cable Roborock Q Revo MaxV Remote control Roborock Q Revo MaxV Mop pad (4-pack) Roborock Q Revo MaxV Dock base pad Roborock Q Revo MaxV Drive wheels Roborock Q Revo MaxV HEPA Filter Roborock Q Revo MaxV Mop Pad Roborock Q Revo MaxV Dust Bag Roborock Q Revo MaxV Water Tank Filter Roborock Q Revo MaxV Dock Filter Roborock S7 Filter Roborock S7 Left side brush Roborock S7 Right side brush Roborock S7 Side brush set Roborock S7 Mop pad (4-pack) Roborock S7 MaxV Filter Roborock S7 MaxV Left side brush Roborock S7 Replacement Battery Roborock S7 Main Brush Roller Roborock S7 Mop Pad Roborock S7 MaxV Right side brush Roborock S7 MaxV Side brush set Roborock S7 MaxV Mop pad (4-pack) Roborock S7 MaxV Ultra Filter Roborock S7 MaxV Ultra Left side brush Roborock S7 MaxV Ultra Right side brush Roborock S7 MaxV Ultra Side brush set Roborock S7 MaxV Ultra Mop pad (4-pack) Roborock S7 MaxV Main Brush Roller Roborock S7 MaxV Mop Pad Roborock S7 MaxV Ultra Main Brush Roller Roborock S7 MaxV Ultra Mop Pad Roborock S7 Pro Ultra Filter Roborock S7 Pro Ultra Left side brush Roborock S7 Pro Ultra Right side brush Roborock S7 Pro Ultra Side brush set Roborock S7 Pro Ultra Mop pad (4-pack) Roborock S7 Pro Ultra Replacement Battery Roborock S7 Pro Ultra Main Brush Roller Roborock S7 Pro Ultra Mop Pad Roborock S6 MaxV Filter Roborock S6 MaxV Left side brush Roborock S6 MaxV Right side brush Roborock S6 MaxV Side brush set Roborock S6 MaxV Replacement Battery Roborock S6 MaxV Main Brush Roller Roborock Saros 10 Filter Roborock Saros 10 Left side brush Roborock Saros 10 Right side brush Roborock Saros 10 Side brush set Roborock Saros 10 Main Brush Roller Roborock Saros 10 Mop pad (4-pack) Roborock Saros 10R Filter Roborock Saros 10R Left side brush Roborock Saros 10R Right side brush Roborock Saros 10R Side brush set Roborock Saros 10R Mop pad (4-pack) Roborock Saros Z70 Filter Roborock Saros 10 Mop Pad Roborock Saros 10R Replacement Battery Roborock Saros 10R Main Brush Roller Roborock Saros 10R Mop Pad Roborock Saros Z70 Left side brush Roborock Saros Z70 Right side brush Roborock Saros Z70 Side brush set Roborock Saros Z70 Mop pad (4-pack) Roborock Saros Z70 Main Brush Roller Roborock Saros Z70 Mop Pad Roborock S8 Pro Ultra Replacement Battery Roborock S8 Pro Ultra Main Brush Roller Roborock S8 MaxV Ultra Replacement Battery Roborock Q Revo Replacement Battery Roborock Q Revo MaxV Replacement Battery Roborock Q Revo MaxV Side Brush Roborock Q Revo MaxV Floor Cleaning Solution Roborock S7 MaxV Replacement Battery Roborock S7 MaxV Ultra Replacement Battery Roborock S8 Main Brush Roller

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