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, so when an MCB keeps tripping, attention turns to that circuit and what is connected to it. Understanding the difference helps our electricians run the right tests, locate the cause faster and recommend the correct repair.
RCD keeps tripping: the usual causes
- A faulty appliance, often a kettle, washing machine, immersion heater or oven element
- Moisture in an outdoor socket, garden light or junction box, especially after rain
- Damaged cable, for example a nail or screw through a wall or floor
- Several small leaks adding up on one RCD in a busy kitchen or office
- A worn RCD that trips below its rated setting and needs replacing
Electric keeps tripping: what you can safely check
- Switch off and unplug everything on the affected circuits, then reset the RCD once.
- If it holds, plug items back in one at a time and note which one trips it.
- If it trips with everything unplugged, the fault is in the fixed wiring: leave it off and call us.
- Note which switch or trip switch went down and when, as it shows us where to start.
- Never hold a trip switch up or tape it in place.
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. Side-return kitchens and garden studios in M21 are covered on our page for an electrician in Chorlton.
