{
  "$schema": "robofaults-fault-record/v0",
  "kind": "error",
  "brand": "roborock",
  "page_en": "https://robofaults.com/roborock/error-26/",
  "page_es": "https://robofaults.com/es/roborock/error-26/",
  "code": "26",
  "slug": "error-26",
  "device_type": "vacuum",
  "name_en": "Wall sensor blocked",
  "name_es": "Sensor de pared bloqueado",
  "badge": "ERR 26",
  "severity": "warn",
  "severity_note_en": "robot pauses until the side-facing sensor can see again",
  "severity_note_es": "el robot se pausa hasta que el sensor lateral vuelva a ver",
  "series": [
    "S5",
    "Q"
  ],
  "tools_en": "soft dry cloth",
  "tools_es": "paño suave y seco",
  "time_min": 2,
  "difficulty": "easy",
  "safety": "none",
  "safety_note_en": "",
  "safety_note_es": "",
  "meaning_en": "Error 26 is the <b>wall sensor dirty</b> error as numbered on the S5 Max and Q series — same fault the S6 and S7 report as Error 15. Dust is covering the side sensor. Wipe it and restart.",
  "meaning_es": "El error 26 es el aviso de <b>sensor de pared sucio</b> con la numeración del S5 Max y la serie Q — el mismo fallo que el S6 y el S7 reportan como error 15. El polvo cubre el sensor lateral. Límpialo y reinicia.",
  "causes": [
    {
      "title_en": "Dust build-up on the sensor window",
      "title_es": "Acumulación de polvo en la ventana del sensor",
      "detail_en": "The wall sensor rides along skirting boards all day and fogs over faster than anything else on the robot.",
      "detail_es": "El sensor de pared recorre los rodapiés todo el día y se empaña antes que cualquier otra pieza del robot.",
      "likelihood": "most_common"
    },
    {
      "title_en": "Residue splash from mopping",
      "title_es": "Salpicaduras del fregado",
      "detail_en": "On mopping runs, dirty water mist can dry onto the sensor window as a film.",
      "detail_es": "En las pasadas de fregado, la neblina de agua sucia puede secarse sobre la ventana del sensor formando una película.",
      "likelihood": "uncommon"
    }
  ],
  "steps": [
    {
      "title_en": "Wipe the wall sensor",
      "title_es": "Limpia el sensor de pared",
      "detail_en": "Soft dry cloth on the sensor window on the robot's right side. Ten seconds of work.",
      "detail_es": "Paño suave y seco sobre la ventana del sensor en el lateral derecho del robot. Diez segundos de trabajo."
    },
    {
      "title_en": "Restart the clean",
      "title_es": "Reinicia la limpieza",
      "detail_en": "Resume from the app or the clean button.",
      "detail_es": "Reanuda desde la app o con el botón de limpieza."
    },
    {
      "title_en": "Make it monthly",
      "title_es": "Hazlo cada mes",
      "detail_en": "Roborock's maintenance schedule says to wipe all sensors monthly — it keeps this error from coming back.",
      "detail_es": "El calendario de mantenimiento de Roborock indica limpiar todos los sensores una vez al mes — así este error no vuelve."
    }
  ],
  "parts": [],
  "firmware_series": "s5",
  "related": [
    "15",
    "4"
  ],
  "sources": [
    {
      "label_en": "Roborock S5 Max user manual — Troubleshooting",
      "label_es": "Manual de usuario del Roborock S5 Max — Solución de problemas",
      "url": "https://support.roborock.com/hc/en-us/articles/360037037852-Roborock-S5-Max-CE-EN-Manual",
      "kind": "official"
    },
    {
      "label_en": "Roborock Q7 user manual — Errors table",
      "label_es": "Manual de usuario del Roborock Q7 — tabla de errores",
      "url": "https://support.roborock.com/hc/en-us/articles/8739084361497-Roborock-Q7-CE-EN-User-Manual",
      "kind": "official"
    }
  ],
  "confidence": "official",
  "last_verified": "2026-07-05"
}