I am able to get hot water but no heating from my vaillant ecotec boiler, we can press the plus and minus buttons and it will overide but then switches off again almost straight away, but then occaisionally will remain on for a few hours.. we have a wireless digistat and this is constantly running out batteries as it is trying to get the boiler to kick in to get to the set temp, but obviously nothing is happening.

Mands, January 2011

Is the radiator symbol in the display? If not, the fault is not in the boiler but external.
Pressing plus and minus is not ideal, it is for commisioning purposes, NOT for general use.

Carefree, January 2011