How to fix Viessmann Vitodens 050-W fault code E352

What does the Viessmann Vitodens 050-W E352 fault code mean?

The E352 fault code on the Viessmann Vitodens 050-W indicates a problem with the system control board, which is crucial for managing the boiler’s operations. This fault can lead to the boiler being unable to function properly, resulting in heating or hot water issues.

Common Causes

  • Electrical Faults: Issues such as short circuits or damaged wiring can disrupt the control board’s functionality.
  • Component Failure: A malfunctioning component on the control board itself may lead to the E352 error, requiring replacement of the board.

Can I fix it myself? (DIY)

It is strongly advised to call a Gas Safe Engineer for any repairs related to the control board, as these involve electrical components and gas safety regulations. Attempting to fix it yourself could pose safety risks.

Estimated Repair Cost (2026 UK Prices)

The estimated cost for repairing or replacing the control board on a Viessmann Vitodens 050-W is approximately £400 to £600. This includes parts and labour, reflecting the complexity of the repair and the need for a qualified technician.