Charger shows 'Isolation Fault' or 'Insulation Error', charging disabled

Safety: Low insulation resistance can lead to electric shock. Do not use the charger until tested.

• Step 1 – Visual inspection: With power OFF, inspect the cable and connector for cuts, abrasions, or signs of water ingress.
• Step 2 – Drying period: If the charger or cable has been exposed to heavy rain or flooding, allow time to dry in a safe environment. Do not apply external heat sources.
• Step 3 – Insulation testing (electrician): Perform insulation resistance tests between line/neutral and earth on the output circuit and cable. Values below manufacturer thresholds indicate a fault.
• Step 4 – Replace damaged components: Replace the tethered cable or socket if insulation is compromised. Clean or replace any contaminated parts.
• Step 5 – PCB check: If insulation tests are good but the charger still reports an isolation fault, the isolation monitoring circuit on the PCB may be defective and require replacement.