Battery dead or weak
- Battery faulty. Caused by sulphated plates which are shorted through sedimentation. Also, broken battery terminal making only occasional contact (Chapter 9). On non MF batteries, make sure the electrolyte level is correct (Chapter 1).
- Battery cables making poor contact (Chapter 9).
- Load excessive. Caused by addition of high wattage lights or other electrical accessories.
- Ignition (main) switch defective. Switch either grounds (earths) internally or fails to shut off system. Renew the switch (Chapter 9).
- Regulator/rectifier defective (Chapter 9).
- Alternator stator coil open or shorted (Chapter 9).
- Wiring faulty. Wiring grounded (earthed) or connections loose in ignition, charging or lighting circuits (Chapter 9).