How to fix Viessmann Vitodens 050-W fault code E322

What does the Viessmann Vitodens 050-W E322 fault code mean?

The E322 fault code indicates a problem with the system gas filter, which may be clogged or malfunctioning. This can lead to insufficient gas supply to the boiler, affecting its performance and efficiency.

Common Causes

  • Clogged Gas Filter: Over time, debris and contaminants can accumulate in the gas filter, restricting gas flow.
  • Faulty Gas Filter: The gas filter itself may be damaged or defective, preventing it from functioning properly.

Can I fix it myself? (DIY)

It is highly recommended to call a Gas Safe Engineer to address this issue, as working with gas appliances can be dangerous and requires professional expertise.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for replacing the gas filter on a Viessmann Vitodens 050-W is around £150 to £250. This includes the cost of the part and labour, as gas filter replacements typically require professional installation.