{
  "$schema": "robofaults-fault-record/v0",
  "kind": "error",
  "brand": "eufy",
  "page_en": "https://robofaults.com/eufy/error-4/",
  "page_es": "https://robofaults.com/es/eufy/error-4/",
  "code": "4",
  "slug": "error-4",
  "device_type": "vacuum",
  "name_en": "Rolling brush stuck",
  "name_es": "Cepillo principal atascado",
  "badge": "ERR 4",
  "severity": "warn",
  "severity_note_en": "robot pauses until the rolling brush and its path are cleared",
  "severity_note_es": "el robot se pausa hasta despejar el cepillo principal y su recorrido",
  "series": [
    "G30/G40",
    "L70",
    "X8",
    "LR/L35"
  ],
  "tools_en": "scissors for wrapped hair",
  "tools_es": "tijeras para el pelo enrollado",
  "time_min": 10,
  "difficulty": "easy",
  "safety": "none",
  "safety_note_en": "",
  "safety_note_es": "",
  "meaning_en": "Error 4 means the <b>rolling brush is stuck</b>. eufy's official routine: remove the rolling brush, roller joint, brush guard and suction inlet, clean all of them, and reassemble before restarting.",
  "meaning_es": "El error 4 significa que el <b>cepillo principal está atascado</b>. La rutina oficial de eufy: retira el cepillo principal, su acople, la protección del cepillo y la entrada de succión, límpialos todos y vuelve a montarlos antes de reiniciar.",
  "causes": [
    {
      "title_en": "Hair banded around the roller",
      "title_es": "Pelo enrollado alrededor del rodillo",
      "detail_en": "Long hair and pet fur wrap the roller until the motor overloads — the top trigger on every series.",
      "detail_es": "El pelo largo y el de mascotas envuelven el rodillo hasta sobrecargar el motor — el desencadenante principal en todas las series.",
      "likelihood": "most_common"
    },
    {
      "title_en": "Debris at the roller ends and joint",
      "title_es": "Suciedad en los extremos y el acople del rodillo",
      "detail_en": "eufy's procedure singles out the roller joint and both end caps — hidden hair there stalls a clean-looking brush.",
      "detail_es": "El procedimiento de eufy señala el acople y ambos extremos del rodillo — el pelo escondido ahí frena un cepillo que parece limpio.",
      "likelihood": "common"
    },
    {
      "title_en": "Object jammed in the suction inlet",
      "title_es": "Objeto encajado en la entrada de succión",
      "detail_en": "Sock edges and toy parts wedge between brush and inlet, locking the roller solid.",
      "detail_es": "Bordes de calcetines y piezas de juguete se encajan entre el cepillo y la entrada, bloqueando el rodillo por completo.",
      "likelihood": "common"
    }
  ],
  "steps": [
    {
      "title_en": "Power off and open the brush compartment",
      "title_es": "Apaga el robot y abre el compartimento del cepillo",
      "detail_en": "Turn the robot over and release the brush guard to lift out the rolling brush.",
      "detail_es": "Da la vuelta al robot y libera la protección del cepillo para sacar el cepillo principal."
    },
    {
      "title_en": "Clean brush, joint, guard and inlet",
      "title_es": "Limpia el cepillo, el acople, la protección y la entrada",
      "detail_en": "Remove wrapped hair from the roller, clean the roller joint and both ends, and clear the brush guard and suction inlet of debris.",
      "detail_es": "Retira el pelo enrollado del rodillo, limpia el acople y ambos extremos, y despeja la protección del cepillo y la entrada de succión."
    },
    {
      "title_en": "Reassemble and verify rotation",
      "title_es": "Vuelve a montar y verifica el giro",
      "detail_en": "Refit the brush and guard, then confirm the roller spins freely by hand before restarting the clean.",
      "detail_es": "Monta el cepillo y la protección, y confirma que el rodillo gira libre con la mano antes de reiniciar la limpieza."
    },
    {
      "title_en": "Replace a worn roller",
      "title_es": "Sustituye un rodillo desgastado",
      "detail_en": "If the bristles are matted or the ends wobble, fit a replacement rolling brush — a persistent Error 4 with a new brush points at Error S5.",
      "detail_es": "Si las cerdas están aplastadas o los extremos bailan, monta un cepillo de recambio — un error 4 persistente con cepillo nuevo apunta al error S5."
    }
  ],
  "parts": [
    "eufy-rolling-brush-g30"
  ],
  "related": [
    "S5",
    "4 beeps"
  ],
  "sources": [
    {
      "label_en": "eufy Support — X8/LR20/LR30/L35 series voice alerts and solutions",
      "label_es": "Soporte de eufy — Alertas de voz y soluciones de las series X8/LR20/LR30/L35",
      "url": "https://service.eufy.com/article-description/X8-Series-RoboVac-Voice-Alerts-and-Solution",
      "kind": "official"
    },
    {
      "label_en": "eufy Support — G series voice alerts and quick solutions",
      "label_es": "Soporte de eufy — Alertas de voz y soluciones rápidas de la serie G",
      "url": "https://service.eufy.com/article-description/Voice-Alerts-Quick-Solutions-for-smart-navigation-series-G-series",
      "kind": "official"
    }
  ],
  "confidence": "official",
  "last_verified": "2026-07-06"
}