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Drain the system from lowest point for short bursts keeping one hand on hose pipe you will feel/hear air lock come through or run system until hot water begins to circulate for a while and then try shutting all good rads down and draining cold rads once again keeping one hand on hose pipe and...

Hi Thank you for taking the time to reply. I understand that by putting one terminal on a Earth and the other on live will give 240v reading if appliance has power running to it when using a Multi Meter.However looking at the original stat I can only see Red,Blue and yellow .......yellow...

I see from other postings That the live will go to com and the switched to the No and the nuetral to a bloc also if I turn off the boiler at consumer unit will this cut the power to the stat ? (Danfoss stat)

Hi Every one I want to change my old room thermostat for a new digital one but I am unsure about the wiring there is a red, yellow and blue but i do not Know which is the boiler or the live I have a multi meter but have only had guidence on how to use when a earth is present. :?

When would you like the job to be done time etc ?

Hi where in south east london r u ?

I take the Magnaclean is ok for open vent systems ? How much ? and where from ? Thanks.

OK thanks !!

Product info says up to 4 weeks .......but CH not working 100% so trying to get house warm asap !

Ok Cheers Dave.

Ok thank you !

Water was Black ! Pump is a about a year old the system is on a British Gas 3 star plan ...........I know ........ I know (to be honest it is my mothers house and British Gas wanted £560 for a power flush !!!!!!!!!

Ok thanks !

I am having to hold open the CH valve in order to get central Heating can be left open but then house over heats can any one help ?

My friends house has radiators that are warm upstairs and cold down, by shutting the upstairs rads down the down stairs can be warmed. Last week I applied Sentinel X400 (sludge remover) and got the system going then a few days l8tr drained the system down cleaned out the F/E and put in a...

My friends house has radiators that are warm upstairs and cold down, by shutting the upstairs rads down the down stairs can be warmed. Last week I applied Sentinel X400 (sludge remover) and got the system going then a few days l8tr drained the system down cleaned out the F/E and put in a...