Xiaomi Robot Vacuum P20 — Error codes & fixes

Troubleshooting guide for the Xiaomi Robot Vacuum P20. Diagnose an error code and find the fix.

Main brush error

error-4

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

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

Error 11

error-11

Wheel error — the robot may be stuck. One of the wheels is blocked, preventing the robot from navigating.

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

Error 12

error-12

Robot cannot start or the wheel is stuck. The main brush or wheels may be jammed.

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

Mop pad error

error-16

The mop pad is not attached or detected. The pad may be missing or mis-installed.

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

Bumper / cliff sensor error

error-1

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

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

Side brush error

error-7

The side brush is not spinning. It may be jammed or the screw may have loosened.

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

Battery cannot charge

error-14

The robot does not charge on the dock. Charging contacts or the battery may be faulty.

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

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