E015
Siemens Internal Power Supply Fault

Charger displays E015; unit may reboot repeatedly or freeze during operation.

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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

Failed low-voltage power supply module on control board, Short circuit on 5 V/12 V logic rails, Surge damage from lightning or switching transients, Loose neutral or line connection feeding auxiliary supply

How to Fix / Troubleshooting

Safety first: Internal power supplies are connected to mains. Only qualified technicians should service them.

  • Check supply stability: Verify that the mains supply is stable and within voltage limits. Frequent brownouts can stress the internal PSU.
  • Inspect for damage: With power OFF and cover removed, look for bulging capacitors, burnt components, or discoloration on the control board.
  • Reseat connectors: Ensure all low-voltage connectors from the PSU section to other modules are firmly seated.
  • Surge protection: If the charger is in a surge-prone area, consider installing external surge protection devices as recommended by Siemens.

Because PSU faults can cascade to other components, board-level repair should be left to Siemens service; replacement of the main control board is often required.

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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board (Auxiliary Power Supply Section)
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