Fault 02 Code 205 — Internal fault, parameters reset to default due to EEPROM problem

What does Fault 02 205 mean?

The Worcester Bosch Greenstar CDi Boiler displays Fault 02 with code 205, indicating an internal fault where some system parameters have reset to their factory default settings due to an EEPROM (Electrically Erasable Programmable Read-Only Memory) problem.

• Malfunction of the EEPROM within the controller
• Corruption of parameter settings

Click steps to track your progress.

1. 1

   Access the controller's settings menu and check if any parameters have reverted to default.

2. 2

   Readjust any incorrect parameter settings as necessary according to your system's requirements.

3. 3

   If parameters frequently reset or the issue continues, contact a qualified heating engineer to replace the faulty controller.