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RCD keeps tripping: how to find the faulty appliance in Barcelona

Riesgo medio · con precaución

Resumen rápido

The RCD trips because it detects an earth leak.

¿Qué está pasando?

The RCD cuts power if it detects an earth leak.

Causas más probables

  • Appliance with faulty heating element

    alta

    Washer, dishwasher or water heater.

  • Damp junction box

    media

    After a leak, damp can reach junction boxes.

  • Aged or mis-calibrated RCD

    media

    After 10–15 years they lose precision.

Pasos de diagnóstico

  1. 1

    Switch off all breakers

    These are the rectangular switches.

  2. 2

    Reset the RCD

    Reset the RCD lever.

    ⚠ Parada de seguridad: If you smell burning, cut the mains and call.
  3. 3

    Reset breakers one at a time

    Wait 10 seconds between each.

  4. 4

    Unplug appliances on that circuit

    Unplug everything on the problem circuit.

Cuándo llamar a un profesional

Call an electrician in Barcelona.

Coste orientativo en Barcelona

60140

Travel and diagnostics in Barcelona.

Contexto local · Barcelona

Many flats in Barcelona still have old panels.

Barcelona is the bulk of our work and demands judgement: Eixample is full of modernista buildings with 3 m+ ceilings, original gotelé render, electrics with no RCD and cast-iron stacks still in service — all of which stretch any refurb. Gràcia and Sant Antoni are dominated by 1930s–60s flats with hydraulic-tile floors we have to protect before touching walls. Ciutat Vella adds narrow building entrances and BCN ASIA façade rules, so we coordinate scaffolding and permits when needed. Sant Martí (22@) is another world: new-builds and offices converted to lofts that drag along under-sized electrical panels. The ZBE low-emission zone and AREA paid parking push us to load/unload early to keep costs down.

  • Comarca: Barcelonès
  • Población: 1.660.122 hab.
  • Parque de vivienda predominante: piso-eixample
  • Año medio de construcción: 1955
  • Códigos postales: 08001, 08002, 08003, 08004, 08005, 08006, 08007, 08008, 08009, 08010, 08011, 08012, 08013, 08014, 08015, 08016, 08017, 08018, 08019, 08020, 08021, 08022, 08023, 08024, 08025, 08026, 08027, 08028, 08029, 08030, 08031, 08032, 08033, 08034, 08035, 08036, 08037, 08038, 08039, 08040, 08041, 08042

Capital catalana con un parque de viviendas dominado por pisos del Eixample, fincas modernistas y bloques de los 60–70 en distritos como Sant Andreu o Nou Barris.

Preguntas frecuentes

Is it dangerous when the RCD trips?

On the contrary: it's good.

What does it cost to replace the RCD in Barcelona?

Between 130 and 220 €.

Do you offer emergency electrical service in Barcelona?

Yes.

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Más sobre Electrics: RCD, sockets and lights

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