Recent content by pwz9

Thanks Chris for your reply. Everything else is OK with the boiler apart from the pump going off and on. The D.H.W work fine and all the radiators get hot. My plumber has changed one of the sensors, but this did hot solve the problem. It has been suggested that there is a problem with...

I am having a problem with the CH pump on my Ferroli Optima 1001 constantly switching on and off. The boiler fires up and after a few minuets, the burner goes out and the pump carries on running (for approximately 1minuet), after this time the pump then switches off. About 30 seconds later...