home Fix label Heating label_important Home Heating Systems category Vaillant

Vaillant Ecomax 828 E?

I currently have central heating, but no hot water. The error code is E12. Does anyone know how to fix it?

Sarah, November 2010

home Fix label Heating label_important Home Heating Systems category Vaillantdone

I have hot water but no heating unless I push the + & - buttons together error code is F30, help?

Linz, January 2011

E12 refers to water deficiency (same as E13), as you have not hot water but heating is ok, I would suggest your DHE is blocked, this would lock the boiler out as described.

Ignore the answer below, your boiler dosen't have a DHW diaphragm

Carefree, November 2010

dhw diaphram

deano, November 2010

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Vaillant Ecomax 828 E?

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Vaillant Ecomax 828 E?

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