What does the Viessmann Vitodens 050-W E248 fault code mean?
The E248 fault code indicates a malfunction with the water level sensor in the Viessmann Vitodens 050-W boiler. This issue can prevent the boiler from operating correctly, leading to potential overheating or system failure.
Common Causes
- Faulty Water Level Sensor: The sensor may be defective or damaged, causing incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the sensor can disrupt its functionality.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be hazardous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for replacing a faulty water level sensor in a Viessmann Vitodens 050-W is around £150 to £250. This includes parts and labour, as the sensor itself typically costs between £50 and £100, with the remainder covering the engineer’s time.