Volkswagen
Intermittent Control or Connector Fault
VW wallbox intermittently stops charging without any error code; unplugging and replugging usually resumes charging.
Advertisements
Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
Advertisements
Possible Causes
Loose low‑voltage harness connector on control PCB, Marginal contact in Type 2 plug, Vibration or thermal expansion affecting internal terminals, Firmware instability under certain conditions
How to Fix / Troubleshooting
Safety first: Avoid wiggling cables or the charger while energized.
- Check cable strain relief: Ensure the tethered cable is properly supported and not pulling on the charger housing.
- Secure plug: Make sure the plug is fully inserted and latched into the vehicle inlet.
- Update firmware: Use the VW wallbox app to check for and install firmware updates that may address intermittent issues.
- Monitor pattern: Note whether interruptions occur at similar times, temperatures, or loads and share this with a technician.
If interruptions continue, a technician should open the VW wallbox, reseat internal connectors, and inspect for cold solder joints or loose terminals.
Advertisements
Repair Difficulty
Medium
3/5
Required Part
VW wallbox main control PCB
Check Price on Amazon
We may earn a commission from links on this page.
Advertisements