E0 — Internal error on the circuit board

What does E0 mean?

A general internal error has occurred within the boiler's main circuit board. This indicates a component or software malfunction that prevents normal operation.

• A malfunction of the main printed circuit board.
• An internal software error or glitch.
• Possible electrical interference or power fluctuation affecting the board.

Click steps to track your progress.

1. 1

   Attempt to reset the boiler by turning off its power supply at the main switch or breaker for a few minutes, then turning it back on.

2. 2

   If the error persists after a reset, the main circuit board may be faulty and require replacement by a qualified technician.

3. 3

   Contact customer service for further diagnostics and professional repair assistance.