error-4 Troubleshooting

Main brush error on the Dreame D9

Source: ProductDB robot-vacuum seed Confidence: 85% Verified Aug 8, 2026

The robot stops or reports the main brush is stuck. Hair or debris is likely wrapped around the roller.

How to fix Main brush error

Clear the main brush

Remove the main brush guard and clear hair or debris wrapped around the roller.

Source: ProductDB robot-vacuum seed Confidence: 80% Verified Aug 8, 2026
Difficulty: ★ Est. 5 min

Replace the main brush

If the roller is worn or damaged, replace it with a genuine part.

Source: ProductDB robot-vacuum seed Confidence: 80% Verified Aug 8, 2026
Difficulty: ★★ Est. 10 min

Replacement parts for the Dreame D9

Dreame L10 Pro Filter Dreame L10 Pro Left side brush Dreame L10 Pro Right side brush Dreame L10 Pro Side brush set Dreame L10 Pro Main Brush Roller Dreame R10 Filter Dreame R10 Left side brush Dreame R10 Right side brush Dreame R10 Side brush set Dreame S10 Filter Dreame S10 Left side brush Dreame S10 Right side brush Dreame S10 Side brush set Dreame D9 Filter Dreame D9 Left side brush Dreame D9 Right side brush Dreame D9 Brush guard Dreame D9 Side brush set Dreame D9 Cable organizer Dreame D9 Cleaning tool Dreame D9 Charging cable Dreame D9 Remote control Dreame D10 Filter Dreame D10 Left side brush Dreame D10 Right side brush Dreame D10 Side brush set Dreame D9 Main Brush Roller Dreame D9 Floor Cleaning Solution Dreame D10 Main Brush Roller Dreame S10 Main Brush Roller Dreame R10 Main Brush Roller Dreame D9 Replacement Battery Dreame D9 HEPA Filter Dreame D9 Side Brush Dreame D9 Mop Pad Dreame D9 Dust Bag Dreame D9 Water Tank Filter Dreame D9 Dock Filter

← All Dreame D9 error codes

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