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Ravenheat condensing CSI Primary boiler has been cycling .I think the problem might be the controle thermostat.I checked the flow temperature at the boiler ,it seemed to be cutting out at 61deg (if the guage was right)I then removed the thermostat probe from its housing and the boiler worked...

Ravenheat Primary A condensing boiler.Which side is the flow.Manual shows it on the left on one page and the right on another.Ravenheat not helpful,Would not buy another.Thanks for any help.

Ravenheat CSI Primary A Condinsing boiler starts up for a minute or so and then cuts out.This continues (time varies from 5 to 90 seconds) eventually heating rads/hot water.Seems to me hot water not leaving boiler fast enough,flow pipe gets extremely hot at boiler then cuts out.I fitted another...