Vaillant F63 boiler error code

Аватар автора
Огонь и Эксперимент
If your Vaillant Boiler is giving you an F63 error message it means that you have an issue with your EEPROM. EEPROM stands for Electronically Erasable Programmable Read-Only Memory - catchy. In English, it means that you have an issue with the electronics within your boiler.

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