Electrical Supply
Why Is My Charger Showing a Red or Fault Light?
2 min read
A red flashing(fault) light means your charger has detected a problem and has safely stopped charging to protect your vehicle and the unit.
Common reasons
- Power supply issue (voltage drop or surge).
- Grounding/earth fault.
- Charger is too hot.
- Internal fault with hardware.
- Loose or damaged wiring connection.
Steps to fix the issue
- Power cycle the charger
- Switch the charger off at the isolator (the small switch next to the unit).
- Wait 30 seconds.
- Switch it back on.
- See if the red light clears.
- If the red light stays on
- Contact your installer to investigate further.
Quick summary
- A red light means a fault has been detected.
- Try a reset first.
- If it doesn’t clear, it may be a power or hardware issue — contact your installer.