{
  "$schema": "robofaults-fault-record/v0",
  "kind": "error",
  "brand": "eufy",
  "page_en": "https://robofaults.com/eufy/error-21/",
  "page_es": "https://robofaults.com/es/eufy/error-21/",
  "code": "21",
  "slug": "error-21",
  "device_type": "vacuum",
  "name_en": "Charging base blocked",
  "name_es": "Base de carga bloqueada",
  "badge": "ERR 21",
  "severity": "warn",
  "severity_note_en": "robot can't line up with its base or station until the approach is cleared",
  "severity_note_es": "el robot no puede alinearse con su base o estación hasta despejar el acceso",
  "series": [
    "G30/G40",
    "X8",
    "LR/L35"
  ],
  "tools_en": "none",
  "tools_es": "ninguna",
  "time_min": 5,
  "difficulty": "easy",
  "safety": "none",
  "safety_note_en": "",
  "safety_note_es": "",
  "meaning_en": "Error 21 means the <b>charging base or auto-empty station is blocked by obstacles</b>. Clear the space around it — eufy recommends 1 m free each side and 2 m in front — and let the robot dock again.",
  "meaning_es": "El error 21 significa que la <b>base de carga o la estación de autovaciado está bloqueada por obstáculos</b>. Despeja el espacio alrededor — eufy recomienda 1 m libre a cada lado y 2 m delante — y deja que el robot se acople de nuevo.",
  "causes": [
    {
      "title_en": "Objects crowding the base",
      "title_es": "Objetos alrededor de la base",
      "detail_en": "Shoes, cables and furniture within the clearance zone break the robot's docking approach path.",
      "detail_es": "Zapatos, cables y muebles dentro de la zona de seguridad rompen la trayectoria de acoplamiento del robot.",
      "likelihood": "most_common"
    },
    {
      "title_en": "Base tucked into a corner or under furniture",
      "title_es": "Base metida en una esquina o bajo un mueble",
      "detail_en": "eufy's placement guidance wants the base against a wall on open, hard floor — recessed spots hide its signal.",
      "detail_es": "La guía de eufy pide la base contra una pared, en suelo firme y despejado — los rincones ocultan su señal.",
      "likelihood": "common"
    },
    {
      "title_en": "Base shifting on the floor",
      "title_es": "Base que se desplaza por el suelo",
      "detail_en": "A base that slides when the robot docks ends up angled — eufy ships stickers to fix it to the floor.",
      "detail_es": "Una base que resbala cuando el robot se acopla acaba torcida — eufy incluye adhesivos para fijarla al suelo.",
      "likelihood": "uncommon"
    }
  ],
  "steps": [
    {
      "title_en": "Clear the docking zone",
      "title_es": "Despeja la zona de acoplamiento",
      "detail_en": "Remove obstacles within about 1 m to each side and 2 m in front of the base or station.",
      "detail_es": "Retira los obstáculos en aproximadamente 1 m a cada lado y 2 m por delante de la base o estación."
    },
    {
      "title_en": "Reposition the base properly",
      "title_es": "Recoloca bien la base",
      "detail_en": "Set it flat against a wall on hard floor, not carpet, away from dark objects, and fix it with the floor stickers if it shifts.",
      "detail_es": "Ponla plana contra una pared sobre suelo duro, no alfombra, lejos de objetos oscuros, y fíjala con los adhesivos si se mueve."
    },
    {
      "title_en": "Send the robot home again",
      "title_es": "Envía el robot a casa de nuevo",
      "detail_en": "Place the robot within 2 m of the base facing it and press the home button to test the docking run.",
      "detail_es": "Coloca el robot a menos de 2 m de la base, mirando hacia ella, y pulsa el botón de retorno para probar el acoplamiento."
    }
  ],
  "parts": [
    "eufy-charging-base-robovac"
  ],
  "related": [
    "8",
    "17"
  ],
  "related_symptom": "not-returning-to-dock",
  "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 — X8 series RoboVac fails to return to the charging base",
      "label_es": "Soporte de eufy — El RoboVac de la serie X8 no vuelve a la base de carga",
      "url": "https://service.eufy.com/article-description/What-should-I-do-if-my-X8-Series-RoboVac-fails-to-return-to-the-charging-base",
      "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"
}