Why will my engine not crank?
Most causes are in the circuit rather than the engine: battery voltage, the main switch, the starter relay or an oxidised terminal. A click points to the power circuit; complete silence points to the control circuit.
Why it works this way
During a survey the battery bank is measured and the connections are scanned with a thermal camera, since a high-resistance joint produces exactly this symptom intermittently.
Related services
Serkan Kotel · independent yacht surveyor · IIMS · ABYC · MCA
