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.
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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.