What does the Viessmann Vitodens 050-W E289 fault code mean?
The E289 fault code indicates a problem with the system flow switch, which is responsible for detecting the flow of water through the heating system. This fault can prevent the boiler from operating correctly, leading to heating and hot water issues.
Common Causes
- Faulty Flow Switch: The flow switch may be malfunctioning due to wear and tear or internal damage, preventing it from accurately detecting water flow.
- Blocked System: A blockage in the heating system can restrict water flow, causing the flow switch to trigger the fault code.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional expertise. Attempting to fix it yourself may pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty flow switch on a Viessmann Vitodens 050-W is around £150 to £250. This includes the cost of the part and labour, reflecting the complexity of the repair and the need for a qualified technician.