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It's in the house, downstairs. With the cylinder, pump and MPV upstairs. cheers, Bill.

Hi, I've just replaced my old mechanical room thermostat with a new digital one. The wires coming out of the wall are coloured red, blue and yellow. I followed the guide (//www.diynot.com/wiki/electrics:how_to_replace_a_room_stat) but i'm now having a problem with the central...

I think i've found the problem....i pulled out the programmer and tested the CH 'ON' wire coming out and it was still wrong....so i tried pushing both switches (HW and CH) over to 'always on'....it fixed it!! The central heating has been on all day :-) The 'twice' setting must be broken in some...

I checked the temperature of the cylinder just after the thermostat switched off and it read 59.6 degrees. I've got the day off today so i'm going to pull off the programmer box and test the signals coming out of it.

Hello, We have a problem with the CH in our 5 year old Barratt house.....i've tried for weeks to track the problem down but i'm totally stuck now....i'd be grateful if anyone can help me out. The boiler is a 'Potterton Suprima 40' (with the temperature knob set to about 70%), the...