Fault 14 Code 117 — System configuration, incompatible BUS device (DHW for FR110)

What does Fault 14 117 mean?

For the FR110 controller, the Worcester Bosch Greenstar CDi Boiler displays Fault 14 with code 117, indicating an incompatible BUS device is present, especially if DHW is controlled by the boiler, making IPM control of DHW ineffective.

• An incompatible BUS device is connected to the system
• Conflict between boiler control and IPM control for DHW

Click steps to track your progress.

1. 1

   Review your system's components to identify any recently added or modified BUS devices.

2. 2

   Consult your boiler's documentation to confirm device compatibility.

3. 3

   Identify the incompatible BUS device and remove it from the system, or contact a qualified heating engineer for assistance.