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Does anyone know where I can find atag fault codes. A customer has e0 69 flashing up. There has been a freakish storm where he lives and the boiler is in a shed. Could it be anything to do with the boiler getting wet? Many thanks.

Hi Gang Have installed several viessmann 100s and one 200 with weather comp and cylinder sensor. The latter was very tasty indeed. Am now quoting for a job requiring a 35kw 300. However have just heard about the Atag q series with similar features, better fluing options but no expansion...

I changed the 3 port on this boiler earlier this year. Called back to change aav. hw working but ch very poor. Pump is good. ch going on for first time this year. Ravenheat reckon on system blockage/muck. Pump goes like a good 'un but it fires for about 10 seconds and then pump overruns for...