Averías eléctricas · Fault finding

Electrical fault finding in Tenerife

An RCD that keeps tripping, sockets that stopped working, lights that flicker. We find the fault by measurement, circuit by circuit, before replacing anything.

Call +34 690 195 750

Our method

Identify what trips. Main switch (overload), RCD (earth leakage) or a single breaker (short circuit or overload on one circuit).
Split the installation. Circuits are isolated one by one to find which one carries the fault.
Measure. Insulation resistance at 500 V DC on the faulty circuit; leakage current with a clamp meter; appliances disconnected and tested separately.
Locate. Junction boxes, outdoor fittings and appliances opened in order of likelihood, not at random.
Repair and retest. The circuit is tested again and the RCD trip time checked before we leave.

The five usual causes in Tenerife

#	Cause	Typical sign
1	Moisture and salt in outdoor boxes, garden and pool lights	Trips after rain, calima or cleaning
2	Water heater (termo) element leaking to earth	Trips when the termo heats up, often at night
3	Washing machine, dishwasher or oven fault	Trips when the appliance starts a cycle
4	Too many circuits on one RCD	Random tripping, no single culprit
5	Damaged cable: drilled, crushed or rodent damage	Trips permanently on one circuit

If it is the main switch that trips rather than the RCD, the cause is usually overload: too many loads for the contracted power. That is solved by spreading loads or reviewing the potencia contratada, not by a bigger breaker.

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Call or WhatsApp, same-day service. Based in Costa Adeje, covering all of Tenerife.

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