Open Circuit [HA2]
Open Circuit
Open circuits in leads show up when something stops working.
Frayed and worn leads which have come loose are common causes.
Checks:
- Disconnect connectors at both ends of lead.
- Check connections visually as per HA1. Check Connections Visually [HA1]
Using an ohmmeter, measure between ends of lead. Ohmmeter should read approx. 0 Ohms in a lead with no open circuit.
Check for intermittent open circuit:
- Check lead visually as per HA1. Shake lead gently and pull gently on connectors during tests to find out where lead is damaged. Check Connections Visually [HA1]