error-1 Troubleshooting

Bumper / cliff sensor error on the Ecovacs Deebot T9

Source: Goods Scene — Roborock error codes list Confidence: 90% Verified Aug 9, 2026

The robot reports a sensor fault and stops or moves erratically. The bumper or cliff sensors may be blocked by dirt or damaged.

How to fix Bumper / cliff sensor error

Clean the bumper and cliff sensors

Turn the robot over and wipe the bumper and all cliff sensors on the underside with a dry cloth. Restart and retry.

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

Inspect the bumper assembly

Check that the bumper is not stuck against the chassis. Gently press it to confirm it moves freely.

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

Clean the LDS

Check for dust, hair, or obstructions around the laser sensor. Gently clean it and restart the robot.

Source: Goods Scene — Roborock error codes list Confidence: 90% Verified Aug 9, 2026
Difficulty: ★ Est. 5 min

Restart the robot

Turn the robot off and on to reset the sensor.

Source: Goods Scene — Roborock error codes list Confidence: 90% Verified Aug 9, 2026
Difficulty: ★ Est. 2 min

Replacement parts for the Ecovacs Deebot T9

Ecovacs Deebot T9 Filter Ecovacs Deebot T9 Left side brush Ecovacs Deebot N8 Filter Ecovacs Deebot N8 Left side brush Ecovacs Deebot N8 Right side brush Ecovacs Deebot N8 Side brush set Ecovacs Deebot N8 Pro Filter Ecovacs Deebot N8 Pro Left side brush Ecovacs Deebot N8 Pro Right side brush Ecovacs N8 Main Brush Roller Ecovacs Deebot N8 Pro Side brush set Ecovacs Deebot N8 Pro Mop pad (4-pack) Ecovacs Deebot N9+ Filter Ecovacs Deebot N9+ Left side brush Ecovacs Deebot N9+ Right side brush Ecovacs Deebot N9+ Side brush set Ecovacs Deebot N9+ Mop pad (4-pack) Ecovacs Deebot M80 Filter Ecovacs Deebot M80 Left side brush Ecovacs Deebot M80 Right side brush Ecovacs Deebot M80 Side brush set Ecovacs N8 Pro Mop Pad Ecovacs N9+ Main Brush Roller Ecovacs N9+ Mop Pad Ecovacs M80 Main Brush Roller Ecovacs Deebot M80 Mop pad (4-pack) Ecovacs Deebot D10 Filter Ecovacs Deebot D10 Left side brush Ecovacs Deebot D10 Right side brush Ecovacs Deebot D10 Side brush set Ecovacs Deebot D10s Filter Ecovacs Deebot D10s Left side brush Ecovacs Deebot D10s Right side brush Ecovacs Deebot D10s Side brush set Ecovacs D10 Main Brush Roller Ecovacs D10s Main Brush Roller Ecovacs Deebot T10 Omni Filter Ecovacs Deebot T10 Omni Left side brush Ecovacs Deebot T10 Omni Right side brush Ecovacs Deebot T10 Omni Side brush set Ecovacs Deebot T10 Omni Mop pad (4-pack) Ecovacs Deebot T10 Filter Ecovacs Deebot T10 Left side brush Ecovacs Deebot T10 Right side brush Ecovacs Deebot T10 Side brush set Ecovacs T10 Omni Main Brush Roller Ecovacs T10 Omni Mop Pad Ecovacs T10 Main Brush Roller Ecovacs Deebot T10 Mop pad (4-pack) Ecovacs Deebot T9 Right side brush Ecovacs Deebot T9 Brush guard Ecovacs Deebot T9 Side brush set Ecovacs Deebot T9 Cable organizer Ecovacs Deebot T9 Cleaning tool Ecovacs Deebot T9 Charging cable Ecovacs Deebot T9 Remote control Ecovacs Deebot T9 Mop pad (4-pack) Ecovacs Deebot T8 Filter Ecovacs Deebot T8 Left side brush Ecovacs Deebot T8 Right side brush Ecovacs Deebot T8 Side brush set Ecovacs T10 Mop Pad Ecovacs T9 Main Brush Roller Ecovacs T9 Mop Pad Ecovacs T9 Water Tank Filter Ecovacs T9 Floor Cleaning Solution Ecovacs T8 Main Brush Roller Ecovacs T9 Replacement Battery Ecovacs T9 HEPA Filter Ecovacs T9 Side Brush Ecovacs T9 Dust Bag Ecovacs T9 Dock Filter Ecovacs N8 Pro Main Brush Roller Ecovacs M80 Mop Pad

← All Ecovacs Deebot T9 error codes

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