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If you have a sink plunger, try plunging the header tank outlet pipe from inside the tank. Also, it could be your drain hose blocked. Shut off drain valve, take it off and see if water comes out the drain point. Also, open up all your other rads.

You don't want the boiler to overheat.

Maybe. Is the header tank dirty? Draining it might have dislodged something into the filler pipe. Or could be an air lock.You could try turning on the heating, but first shut the gas off at the meter, so that the pump runs.

If you put it in header tank, you have to be sure all, or most, of it goes into the system. Fine if it is all drained down first, but if the system is already full, it won't get down in there and mix. Fingers crossed

If it is only 5 times, just use the 5 play video lines. Inelegant, but if it works then it is good code. Syntax is everything in coding, he could insert something like "System.err.println()" into the loop to put any errors out to the console for debugging.

If air doesn't work, try connecting another hose and try mains water. But not too much, you could overflow the header tank, just short bursts. Remember to add inhibitor if it works. I usually take the air vent off the top of a towel rail and pour it in.

Sounds like you have a regular boiler with cylinder and not a combi. Good, combis don't like sludge. Yes, drain the system, but shut off both valves of each working rad first. As above.

Good advice from the Doc as usual. Only thing I can add is to isolate the boiler first by turning off the flow and return valves, also isolate every working radiator, and turn off the other valve to the dodgy rad and keep the drain point open with hose attached. So the blockage has somewhere to...

As long as both manufacturers' instructions permit it, I can't see a problem either. You can have separate oven and hobs on same ocpd. Only thing I can think of is inconvenience, eg if toilet flush mechanism causes fcu fuse to blow will the loss of pumps cause a flood? And if pump blows it, will...

My other half won an Alexa box in a raffle. I quite like it. But I am glad I am with NICEIC and not ELECSA.

control of heating and hot water from your phone. Plus lights and stuff. I don't really know why Dave, extra jumper and warm socks does me and mine.

Dave, I think with hive you replace the programmer with the hive hub, hive has its own wireless thermostat. So for heating, if hive hub sends out the heating-on signal, it should go straight to the boiler. Taking out the old thermostat wires removes that link...

I saw a good post from AJJewsbury on the IET forum about smart meters here http://www.theiet.org/forums/forum/messageview.cfm?catid=205&threadid=103241&STARTPAGE=6&FTVAR_FORUMVIEWTMP=Linear Makes perfect sense. Instead of the mishmash hotchpotch implementations we have now. Might...

yes, but be careful about how you attach the socket box to the wall. You might end up having to put a light, a cooker and a shower there too. ;)

How do they produce little dubaiians? They aren't allowed to watch the Flintstones either, but Abu Dhabi doo :)

Bonjour Ruth, as an aside, I noticed in your photo that the second from right twin and earth cable (at bottom with red to 6 and black to 4) does not seem to have its earth wire connected. It looks like the cylinder stat cable.  There is also an unconnected earth from one of the flexible cables...

Apparently this was at number one the day you two met  :)

I cant find a manual, but found a site where they say a control panel is fitted near the boiler http://www.phgreefelectrical.co.uk/products.html with a timer. Perhaps in a cupboard? Also found http://www.hes.co.uk/compact-c-249.html If you ask either company nicely, they may be able to send...

I was thinking worse case scenario, neighbour has PME with broken PEN and neutral currents are flowing down their bonding into the pipe. Before, the pipe was continuous back to the gas holder. Now it is "floating" in the ground and connected to your MET. The neighbour might even be using a...

So there was no gas coming out, but there might have been residual (explosive) gas/air mixture in there even after a few months. Jubilee clips and denso tape might have been more prudent.  Is there a chance that it is still connected to someone else's electrical installation via their main...