Charger completely dead – no LEDs, no display, no relay click when vehicle is connected.

Safety first: Work on supply circuits only if you are qualified. Always verify absence of voltage before touching conductors.

• Step 1 – Check upstream protection: Verify that the dedicated breaker and any RCD/RCBO feeding the Jaguar charger are in the ON position and have not tripped.
• Step 2 – Test outlet voltage: Using a multimeter, confirm that the correct voltage is present at the charger’s supply terminals.
• Step 3 – Inspect internal fuse: With power OFF, open the charger and locate any internal fuses on the control PCB or power entry. Replace only with the same type and rating if blown.
• Step 4 – Check terminal tightness: Ensure line, neutral, and earth conductors are firmly clamped in the terminal block.
• Step 5 – Power supply module: If supply is present and fuses are intact but the unit remains dead, the low-voltage power supply on the Jaguar control PCB is likely faulty and the PCB should be replaced by a technician.