RCD keeps tripping: how to find the faulty appliance in Terrassa
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
altaWasher, dishwasher or water heater.
Damp junction box
mediaAfter a leak, damp can reach junction boxes.
Aged or mis-calibrated RCD
mediaAfter 10–15 years they lose precision.
Pasos de diagnóstico
- 1
Switch off all breakers
These are the rectangular switches.
- 2
Reset the RCD
Reset the RCD lever.
⚠ Parada de seguridad: If you smell burning, cut the mains and call. - 3
Reset breakers one at a time
Wait 10 seconds between each.
- 4
Unplug appliances on that circuit
Unplug everything on the problem circuit.
Cuándo llamar a un profesional
Call an electrician in Terrassa.
Coste orientativo en Terrassa
60–140 €
Travel and diagnostics in Terrassa.
Contexto local · Terrassa
Many flats in Terrassa still have old panels.
Terrassa has a strong industrial identity: 19th-century textile factories have been converted into lofts and offices in Can Boada and l'Antic Poble de Sant Pere. There we work with 5 m ceilings, wrought-iron beams and original slabs that can't take big point loads — any mezzanine hangs off new steelwork. The rest of the city is 1970s–80s mid-rise with the usual insulation issues. At ~280 m altitude winters are cold and heating demand — heat pumps, biomass, boilers — is high. C-58 access dictates booking order: first slots local, second slots Barcelona.
- Comarca: Vallès Occidental
- Población: 223.627 hab.
- Parque de vivienda predominante: piso-moderno
- Año medio de construcción: 1972
- Códigos postales: 08221, 08222, 08223, 08224, 08225, 08226, 08227, 08228
Antigua capital textil con barrios densos (Ca n’Anglada, Sant Pere Nord) y zonas residenciales en Can Boada y Les Fonts.
Preguntas frecuentes
Is it dangerous when the RCD trips?
On the contrary: it's good.
What does it cost to replace the RCD in Terrassa?
Between 130 and 220 €.
Do you offer emergency electrical service in Terrassa?
Yes.
¿Prefieres que vayamos nosotros?
Diagnóstico y presupuesto en Terrassa normalmente el mismo día.
Pedir presupuesto gratis