Fix E04 Error on Your Delfis Gas Boiler - Easy Solutions!

Experiencing an E04 error in your Delfis gas boiler? This video will guide you through the quick and easy solution! I

I’ll demonstrate how to address the pressure drop indicated by the barometer, which shows the arrow moving into the red zone. By simply turning the black faucet, you can bring the barometer back into the green zone. Join us as we show you the step-by-step process to resolve this issue and get your boiler running smoothly again!

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