F.63 — EEPROM error

What does F.63 mean?

An error has occurred with the boiler's EEPROM (Electrically Erasable Programmable Read-Only Memory). This typically indicates a defect within the boiler's main electronics.

• Electronics defective.

Click steps to track your progress.

1. 1

   Reset the boiler by pressing the reset button.

2. 2

   Power off the boiler, wait a moment, then power it back on.

3. 3

   If the error persists, contact a qualified service technician as this indicates a fault with the internal electronics.