A protective device that trips repeatedly is responding to a condition that needs attention; forcing it back on is not a repair. An RCD usually monitors leakage or imbalance across a group of circuits, while an MCB or circuit breaker protects an individual circuit against overcurrent and short-circuit conditions. The labels and layout vary, so do not guess or remove the cover. TRACEFORM offers 24/7 assessment to identify the device, affected circuit and underlying fault.
RCD versus MCB: why the distinction helps
An RCD may disconnect several circuits together because it detects leakage to earth, often caused by damaged cables, moisture or faulty equipment. An MCB usually operates on a specific circuit when there is an overload or short circuit. Understanding the difference helps our electricians run the right tests, locate the cause faster and recommend the correct repair.
Signs that require prompt help
Call us promptly if a device trips repeatedly, trips with everything apparently off, is worse in wet weather, follows water ingress, or is accompanied by burning smells, buzzing, discoloration or visible damage. These symptoms can indicate a fault that may be unsafe and should be inspected by a qualified electrician.
What the electrician checks
Diagnosis starts with the pattern: which device operated, when, what circuits went off and what was being used. We then carry out visual inspections, insulation and continuity tests, earth fault loop testing and RCD functionality tests to identify the cause without leaving the circuit energised unnecessarily.
Different priorities in homes and workplaces
In a home, one faulty appliance or outdoor circuit may affect several rooms. In commercial premises, shared RCD protection can interrupt tills, workstations or catering equipment, and unplanned resets can risk operations. We tailor our approach to the environment, prioritising safety and minimal disruption.
Repair, isolation and next steps
After testing, we explain whether the issue is linked to equipment, a circuit, an accessory, moisture, protection or another cause. A repair may be possible during attendance. Otherwise, the affected item or circuit can be safely isolated with a clear explanation of restrictions and agreed follow-on work.
