Recent content by HammerandTongs

Just tried turning the central heating motorised zone valve to 'flushing' and now the circulator pump spins fine and stays on. What the hell?

Cheers all. I'll try switching out the capacitor, failing that new pump I guess.

My short-lived joy was limited. It actually stops after about 5-10 seconds. Can re-start it each time, but stops pretty quickly. Blockage?

It hadn't been when I last tried (rotated reasonably freely), but I gave it a good spin with my fingers and it just kept on going! Pipes seem to be warming, could be good!

Hi guys, Potterton 50 gas boiler, sealed system, central heating and hot water cylinder. Timer controlled. Had to shut the electric off to fix a motorised valve. Afterwards found the pressure was zero, and no hot water flowing past the circulator pump. Filled the system back up to...

Sorry, I think I misunderstood re. feed and expansion tank. This is a fixed red cylinder, sealed and connected to the piping, with an input to the pipework directly above it via a plumbed in hose from the loft, with an adjacent pressure valve. The hose has two valves which are both normally in...

:-) thanks for the input. I've tried opening the water hose valves to the pipe above the expansion tank, and the pressure valve next to it rises steadily until I close the valves. I haven't let it rise above about 2 bar, as it was my understanding that these things usually operate with...

I'd be really grateful for any help with this. I recently moved into my flat, and when I turned on the boiler the central heating would run constantly regardless of the demand from the timer. The hot water worked normally. In terms of setup there is a Potterton Profile 50 gas boiler...