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It is on Auto, i can move it onto manual, it feels a little resistance. If i turn off the electrics for the boiler at the mains and reset the lever it will return to auto but i still get a warmth in the CH pipe.

Ok be kind to me as a newb. Have read the forums and this seems to be a common thing. I have just had a Ideal Logic Heat 18+ fully pumped boiler and system put in and i have the above problem. I have a Grudfoss pump which leads into a Honeywell V4073 valve. The AB input on the valve is hot, the...