What does the Worcester Bosch Greenstar 8000 Lifestyle E125 fault code mean?
The E125 fault code indicates that the boiler is experiencing overheating, which can lead to potential damage if not addressed promptly. This fault typically triggers when the temperature exceeds safe operating limits, prompting the boiler to shut down for safety reasons.
Common Causes
- Blocked Heat Exchanger: A build-up of debris or limescale can restrict water flow, causing the boiler to overheat.
- Faulty Thermostat: If the thermostat is malfunctioning, it may not accurately read the temperature, leading to overheating conditions.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer for this issue, as overheating can be a sign of serious underlying problems. Attempting to fix gas or electrical components without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E125 fault could range from £150 to £300, depending on whether the issue is a blocked heat exchanger or a faulty thermostat. This includes labour and parts, as both components may require professional attention.