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BG just finished putting in new pump and valves and said old one was blocked up with rubbish like chunks of metal. Still a job to get downstairs rads to get hot but switched off all rads apart from one downstairs and its now getting hot. He said to switch each rad downstairs in turn for about 30...

Thanks. Got the boiler firing again. It was a switch problem when relighting the pilot. The button you push in before pushing the spark/igniting button was sticking so wasn't coming out quite far enough. Thought it was the pump because it is struggling to push water all way round the heating...

I'm back!!!!! Thought I'd got it sorted but still don't think pump is working up to scratch because it was a bit noisy and upstairs rads were heating up great but downstairs didn't. Hot water seemed to take ages to heat up so my partner asked me to put boiler to high and water did heat up...

great turned impeller, sounded gritty and now pump is working. Can't remember it sounding so loud and it has seemed to be really hot for a long while. It was set to fastest speed and we only have 8 rads and 3 of them are really small. Think everything is now ok. Thanks very much for your help...

its got like a big plastic nut on front. Do I undo this while the heating and pump are switched on?

yes I can control heating and water separate. I'm trying heating with pump on full I think, I've turned switch on side of pump to the opposite end of 3 settings but no change yet. Pump doesn't seem to change tone. I've even put screwdriver to pump and my ear, changed switch but the slight hum...

Thanks, all rads have got water coming out of bleed nipples. Will try pump but am I right in thinking hot water system doesn't use the pump.

just thought of a few other details. This happens with both heating and water. Expansion tank fills ok. Pump gets very hot and the pipe above pump seems very hot. What a time for heating to go wrong, thick snow and its freeeeeezing!

I have recently moved a radiator. I tied up the expansion tank ballcock, bled the system and moved the radiator and everything seemed ok except the radiators downstairs didn't heat up. I tried bleeding the radiators again but no joy so I drained off some water downstairs until the warm water...

I am installing one socket in my garage for a tumble dryer and connecting it to a separate fuse in my consumer unit. Do I need to loop it ie two lives,neutral and earth or can I just use the one cable like a spur