How to fix Worcester Bosch Greenstar Ri fault code F72

What does the Worcester Bosch Greenstar Ri F72 fault code mean?

The F72 fault code indicates a calibration issue within the heating system of the Worcester Bosch Greenstar Ri boiler. This typically suggests that the boiler’s internal sensors are not accurately reading the system’s parameters, which can affect its performance.

Common Causes

  • Sensor Malfunction: A faulty temperature or pressure sensor may provide incorrect readings, leading to calibration errors.
  • Electrical Issues: Loose or damaged wiring connections can disrupt communication between the boiler’s components, causing calibration faults.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer to address this issue, as it involves the boiler’s internal components and calibration settings that require professional expertise.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for resolving the F72 fault could be around £150 to £250, depending on whether a sensor replacement or wiring repair is needed. This cost reflects the complexity of diagnosing and fixing calibration issues in modern boilers.