Recent content by Agricola

The good news is that the noise has stopped all on its own. The boiler is working fine and water is being pumped round the system. The only thing I have a doubt over is whether the pump is now running all the time. Havn't been around enough to determine at the moment. If the blue cube was a pump...

Thanks for the prompt response. The pump is within the casing of the boiler. I'm positive that the pump is Ok and its not the bearings ( Put a new pump in yesterday). The noise definately comes from the PCB and its the largest item on the PCB which is this blue cube. This could be a relay or...

I have a Servowarm Elite 50 gas boiler to a pumped hot water and C/H system. About 3 weeks ago the pump became noisy and sounded as if it was running 'dry'. I discovered that a previous 'plumber' had turned off the supply to the header tank and not reopened it. The supply was turned on and all...