Vestel Clock Drift / Timekeeping Inaccuracy

Vestel EV charger’s internal clock drifts significantly, causing scheduled charging to start at wrong times.

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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.

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Possible Causes

Disabled or misconfigured NTP synchronization, Depleted RTC backup battery, Faulty RTC oscillator on main board, Intermittent network connectivity preventing time updates

How to Fix / Troubleshooting

Safety first: Timekeeping issues are low risk; isolate power only if opening the unit.

  • 1. Enable NTP: In the charger’s settings, enable automatic time synchronization and configure a reliable NTP server.
  • 2. Check network: Ensure the charger has stable internet access so it can reach the NTP server.
  • 3. Replace RTC battery: If the clock resets after power outages, replace the RTC backup battery on the main board.
  • 4. Manual time set: As a temporary measure, manually correct the time and adjust schedules.
  • 5. Replace main board: If the clock drifts excessively even with a new battery and NTP disabled, the RTC oscillator may be faulty; replace the main control board.
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Repair Difficulty

Medium 3/5

Required Part

Main Control Board
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