What does the Viessmann Vitodens 050-W E324 fault code mean?
The E324 fault code on the Viessmann Vitodens 050-W indicates a problem with the exhaust system, which may prevent proper venting of combustion gases. This can lead to safety issues and requires immediate attention to ensure the boiler operates safely and efficiently.
Common Causes
- Blocked Flue: A blockage in the flue can restrict the exhaust gases from leaving the boiler, triggering the fault code.
- Faulty Flue Sensor: A malfunctioning flue gas sensor may incorrectly detect issues in the exhaust system, causing the boiler to shut down.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer to diagnose and repair the issue, as working on the exhaust system can be dangerous and requires professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the E324 fault could range from £150 to £300, depending on whether the issue is a simple flue blockage or requires replacement of a faulty sensor.