I should have also mentioned that when the hot water programmer is switched on, the Honeywell 2 port valve connected to the cylinder, does automatically go on, and the lever is loose and can be freely moved from one side to the other, so the programmer is definitely sending a signal, and the...
Hi @Exedon and All, I changed the bottom valve as well, and it still doesn't work. I also changed the programmer just in case that was the issue but that didn't work either. So it's not the valve or the programmer. I get hot water when the underfloor heating is turned on but no hot water, if the...
Hi @Exedon , yes the bottom one is connected to the cylinder, so it looks like I changed the wrong one :(
Thanks for the reply. I'll change the bottom one later today, and hopefully that will mean it will all be ok :)
I moved into a new flat 3 years ago but the boiler only comes on and heats the water when the underfloor heating is turned on.
I changed the Honeywell 2 port valve today but that did not resolve the issue. See photo showing the new Honeywell 2 port valve that I fitted with a 5 way strain relief...