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.
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¿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 Barcelona.
Want us to take a look? Fixed quote within 24 h.
Coste orientativo
60–140 €
Travel and diagnostics in Barcelona.
Contexto local
Many flats in Barcelona still have old panels.
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.
Related problems
- Socket deadIf one socket fails but others work, usually a loose wire behind it.
- Lights flickerUsually cheap LED bulbs or a loose junction box connection.
- Socket smells burntCut the breaker and DO NOT use it until inspected.
- Flickering lightsFlicker: incompatible LED, loose connection or voltage drop.
- Dead socketDead socket is usually breaker or loose connection.
- Switch brokenRule out bulb first.
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