error-42 Troubleshooting

Error 42 — maintenance brush jammed on the Roborock Q5 Pro

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 S4 Max Main Brush Roller, Roborock Q Revo Main Brush Roller, Roborock Q Revo Pro Main Brush Roller, Roborock Q5 Main Brush Roller, Roborock Q5+ Main Brush Roller, Roborock Q5 Pro Cleaning tool, Roborock Q5 Pro Main Brush Roller, Roborock Q7 Main Brush Roller, Roborock Q7 Max+ Main Brush Roller, Roborock Q8 Main Brush Roller, Roborock Q8 Max Main Brush Roller, Roborock S7 Main Brush Roller, Roborock S6 Main Brush Roller, Roborock S6 MaxV Main Brush Roller, Roborock S6 Pure Main Brush Roller, Roborock S5 Main Brush Roller, Roborock S5 Max Main Brush Roller, Roborock Q7 Max Main Brush Roller, Roborock Q5 Max+ 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 S4 Max Main Brush Roller, Roborock Q Revo Main Brush Roller, Roborock Q Revo Pro Main Brush Roller, Roborock Q5 Main Brush Roller, Roborock Q5+ Main Brush Roller, Roborock Q5 Pro Cleaning tool, Roborock Q5 Pro Main Brush Roller, Roborock Q7 Main Brush Roller, Roborock Q7 Max+ Main Brush Roller, Roborock Q8 Main Brush Roller, Roborock Q8 Max Main Brush Roller, Roborock S7 Main Brush Roller, Roborock S6 Main Brush Roller, Roborock S6 MaxV Main Brush Roller, Roborock S6 Pure Main Brush Roller, Roborock S5 Main Brush Roller, Roborock S5 Max Main Brush Roller, Roborock Q7 Max Main Brush Roller, Roborock Q5 Max+ Main Brush Roller, Roborock S8 Main Brush Roller

Replacement parts for the Roborock Q5 Pro

Roborock S4 Max Main Brush Roller Roborock S8 Filter Roborock S8 Left side brush Roborock S8 Side brush set Roborock S8 Mop pad (4-pack) Roborock S8 Mop Pad Roborock S8 Right side brush 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 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 Q7 Max Filter Roborock Q Revo Pro Main Brush Roller Roborock Q Revo Pro Mop Pad Roborock Q7 Max Left side brush Roborock Q7 Max Right side brush Roborock Q5 Filter Roborock Q5 Left side brush Roborock Q5 Right side brush Roborock Q5 Side brush set Roborock Q5+ Filter Roborock Q5+ Left side brush Roborock Q5+ Right side brush Roborock Q5+ Side brush set Roborock Q5 Max+ Filter Roborock Q5 Main Brush Roller Roborock Q5+ Main Brush Roller Roborock Q5 Max+ Left side brush Roborock Q5 Max+ Right side brush Roborock Q5 Max+ Side brush set Roborock Q5 Pro Filter Roborock Q5 Pro Left side brush Roborock Q5 Pro Right side brush Roborock Q5 Pro Brush guard Roborock Q5 Pro Side brush set Roborock Q5 Pro Cable organizer Roborock Q5 Pro Cleaning tool Roborock Q5 Pro Charging cable Roborock Q5 Pro Remote control Roborock Q5 Pro Mop pad (4-pack) Roborock Q7 Filter Roborock Q7 Left side brush Roborock Q7 Right side brush Roborock Q7 Side brush set Roborock Q5 Pro Main Brush Roller Roborock Q5 Pro Mop Pad Roborock Q5 Pro Water Tank Filter Roborock Q5 Pro Floor Cleaning Solution Roborock Q7 Main Brush Roller Roborock Q7 Max Side brush set Roborock Q7 Max Mop pad (4-pack) Roborock Q7 Max+ Filter Roborock Q7 Max+ Left side brush Roborock Q7 Max+ Right side brush Roborock Q7 Max+ Side brush set Roborock Q7 Max+ Mop pad (4-pack) Roborock Q8 Filter Roborock Q8 Left side brush Roborock Q8 Right side brush Roborock Q8 Side brush set Roborock Q7 Max+ Main Brush Roller Roborock Q7 Max+ Mop Pad Roborock Q8 Main Brush Roller Roborock Q8 Mop pad (4-pack) Roborock Q8 Max Filter Roborock Q8 Max Left side brush Roborock Q8 Max Right side brush Roborock Q8 Max Side brush set Roborock Q8 Max Mop pad (4-pack) 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 Q8 Max Main Brush Roller Roborock Q8 Max Mop Pad Roborock S7 Main Brush Roller Roborock S7 Mop Pad Roborock S6 Filter Roborock S6 Left side brush Roborock S6 Right side brush Roborock S6 Side brush set Roborock S6 Main Brush Roller Roborock S6 MaxV Filter Roborock S6 MaxV Left side brush Roborock S6 MaxV Right side brush Roborock S6 MaxV Side brush set Roborock S6 Pure Filter Roborock S6 Pure Left side brush Roborock S6 Pure Right side brush Roborock S6 Pure Side brush set Roborock S5 Filter Roborock S5 Left side brush Roborock S5 Right side brush Roborock S6 MaxV Main Brush Roller Roborock S6 Pure Main Brush Roller Roborock S5 Main Brush Roller Roborock S5 Side brush set Roborock S5 Max Filter Roborock S5 Max Left side brush Roborock S5 Max Right side brush Roborock S5 Max Side brush set Roborock S4 Max Filter Roborock S4 Max Left side brush Roborock S4 Max Right side brush Roborock S4 Max Side brush set Roborock S5 Max Main Brush Roller Roborock Q7 Max Main Brush Roller Roborock Q7 Max Mop Pad Roborock Q5 Max+ Main Brush Roller Roborock Q5 Pro Replacement Battery Roborock Q5 Pro HEPA Filter Roborock Q5 Pro Side Brush Roborock Q5 Pro Dust Bag Roborock Q5 Pro Dock Filter Roborock Q8 Mop Pad Roborock S8 Main Brush Roller

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