Fault Finding Simulator
Real circuits with hidden faults. Pick a scenario, test safely and call the fault. Every run gives you a different fault.
Lounge power points dead
Two power points on a radial circuit are dead and nothing has tripped. Work out if it's the active or the neutral, and where.
Start simulatorResidential · Earth leakageKitchen RCD trips on reset
The kitchen power RCBO trips every time it's reset. Appliance, fixed wiring or a neutral-to-earth fault: split it and find it.
Start simulatorResidential · LightingHall light only works sometimes
A two-way hall light only comes on in some switch positions. Strapper or switch: find which, and where.
Start simulatorResidential · AppliancesNo hot water: electric storage HWS
A 3.6 kW electric storage hot water system has gone cold. Thermostat, over-temp cutout, element or isolator: find which one.
Start simulatorIndustrial · Motor controlPump won't start: DOL starter
A 230 V DOL starter control circuit with six possible faults. Find it with the fewest tests, and don't cut corners on isolation.
Start simulatorIndustrial · 3-phase motorsConveyor motor trips on overload
A 7.5 kW conveyor motor runs for a few minutes then trips on overload. Supply, setting, load or the motor itself: prove which.
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