The E04 error occurs when the boiler won’t ignite because of lack of power.
Turning power repeatedly on and off is not going to work. Most likely, it is a PCB problem, or an electronic control function is down.
The E04 error occurs when the boiler won’t ignite because of lack of power.
Turning power repeatedly on and off is not going to work. Most likely, it is a PCB problem, or an electronic control function is down.