What does the Worcester Bosch Greenstar Ri F87 fault code mean?
The F87 fault code indicates a faulty system analysis, which typically suggests that the boiler’s control system has detected an issue that prevents it from operating correctly. This could be due to a variety of underlying problems affecting the boiler’s performance.
Common Causes
- Faulty Sensor: A malfunctioning temperature or pressure sensor can lead to incorrect readings, causing the boiler to shut down.
- Electrical Issues: Problems with the wiring or connections within the boiler can disrupt communication between components, triggering the fault code.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any issues related to gas or electrical components. Attempting to fix these problems without proper training can be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F87 fault could range from £150 to £300, depending on whether a sensor replacement or electrical repairs are needed. This estimate reflects the cost of parts and labour for a qualified engineer.