Switchboards & safety switches
Nuisance trips, dead circuits, and board faults.
Safety switch (RCD) keeps tripping at the switchboard
The safety switch trips repeatedly — instantly on reset, randomly, or when certain appliances run. It's detecting earth leakage somewhere; the job is to find where.
Safety switch won't reset
The safety switch won't stay up when you try to reset it — power can't be restored because a fault is still present (or the device/wiring is at fault).
A circuit breaker keeps tripping (domestic)
One circuit breaker keeps tripping — instantly on reset or after a load runs — and you need to tell an overload from a short or a faulty appliance.
No power to the whole house
The entire home has no power — nothing works. Could be a supply outage, the main switch/main safety switch, or a main fault, and the first job is to tell which.
Switchboard buzzing, warm, or smells hot
The switchboard hums/buzzes, feels warm, or has a hot/burning smell — a sign of a loose connection or an overloaded device, and a genuine fire-risk warning.
Old rewireable fuse blowing repeatedly
An older home with ceramic rewireable fuses keeps blowing a fuse on one circuit — the fuse is doing its job; something is overloading or faulting that circuit.
Solar inverter dead, blank, or showing a fault
The rooftop solar has stopped generating — the inverter display is blank, or it's alive but sitting on a fault code. The owner usually notices when the power bill jumps.
Solar inverter shutting down or derating on grid overvoltage
The inverter runs, then backs off or disconnects through the middle of the day with overvoltage events in its log. Generation (and the feed-in credit) suffers — worst on bright days when everyone's exporting.