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I have a Potterton Kingfisher RSL100 boiler on a sealed system. Over the last couple of days I am getting lock-out errors. When I reset the system, it can then run again fully through the cycle without issue. At this time of year, I am only using the system for heating water. Around 80%...

Hi there, I am looking to replace the heating controls for my system as the programmer is very basic and quite old. I would like to control the heating on a weekday /weekend basis (5/2) and maybe have three timed period rather than two. I would also like to replace the room thermo and...

I have two Grundfos UPS 15 -60 pumps. I don't have non-return valves and the controller controls the pumps in order to control the CH or HW or both. They run most of the time the heating is timed to come on. Thanks for the help.

Thanks. I'm comfortable the system is flowing around well enough and there isn't a blockage or restriction in the cold water feed. If I try joining the vent to the feed, can I do this at the boiler or does it have to be done high - i.e. in the loft? thanks.

Hi there, I'm running out of options on my CH header tank overflow (please see below linked issue), so can I join vent and cold water feed? http://www.diynot.com/forums/viewtopic.php?t=170391 I understand the vent pipe is there in the case the boiler thermo goes, surely with the vent...

Hi there, yesterday I fully powerflushed the entire system following 3 weeks soaking with sentinel x400. The system is now pumping around with a sentinel inhibitor. I have also lowered the volume of water in the expansion tank by bending the ballcock. But.... I'm still getting...

Hi there, I have a problem with my heating system overflowing into the header tank which is causing my system to clog up due to oxygenation. I am told this is happening due to a combination of overpumping and resistance caused by sludge build-up in the system. I have been...

Sorry - regarding the pumps - I have one for the hot water and another for the central heating (presently). The engineer says this is not necessary - 1 will do? He has also said this is an unusual setup as most homes only have 1 pump. As I've said before he blames the overflow on the...

thanks for the response. I've only lived in the house a short while so I'm not sure. No changes have been made to the system Sorry unclear. If I turn the boiler heat down, it doesn't happen so much Some get hot at the top but not at the bottom Yes - as above.

I have two Grundfos UPS 15 -60 pumps on my central heating system. A heating engineer has recommended I remove 1 as my system is "overpumped" and also suggests that I replace the remaining pumps as it's of uncertain age. My system is overflowing into the header tank therefore the water...

Thank you sm1thson for your comment. The backbox is metal and earthed. Where would I start looking for a loose earth please? I can look through the connections at the consumption box but if it's not there ....?

Thanks for the above. I have 17 rads and a wife who's worried about the carpets so I would prefer to use a power flusher from the boiler - again if this is simple enough for an amateur? I was looking to have a service contract for my heating system. The company I selected conducted a...

Okay thanks - I understand that a lighting circuit runs in a loop - are you saying that one of the earths is possibly not connected?

Live light switch!! Hi there, when I touch the screws on the wall light switch cover with an electrical testing screwdriver it shows current. I can touch the screws and can't feel a current but am a bit concerned as I imagine this means the earth has a live current. Is this normal? - I...

Help Central Heating configuration question I've just had a survey conducted on my heating system and got a quote now for nearly £2k to powerflush and reconfigure the system. I could do with a little help to understand if this is something I could do or if I need to get a professional...