Hi,
I'm after a bit of advice please. I have a basic hot water / central heating system that is pumped and uses a hot water cylinder. I have a 3 way diverter valve and the usual controller and stats.
The problem I had was with the central heating. If the programmer was switch to on (auto or manual) and the stat was set to high (ie in a situation when the heating should come on) then sometimes the boiler and pump just wouldn't switch on. This was intermittent and worked probably 50% of the time. The hot water side worked fine. The c/h stat and timer are old and my dad had already repaired the board in the programmer a number of years ago so assumed that the problem lay with one of those. Yesterday I replaced the stat and programmer and all seemed fine.....
Until today when I again have the same problem. C/h not working whereby the hot water does.
I'm unsure of how the boiler gets told to switch on. Is this done via the diverter valve? When the c/h doesn't work if I mess around with the hot water to force the valve to move then eventually the c/h will fire into life. I'm "thinking" that the signal to the boiler is sent from the valve and as such this is faulty however it does seem to move to any of the 3 positions fine. The valve is a Drayton BGMVSP-23 and if I remember rightly I changed this around 5 years ago. The only other thing it could be (than the boiler!!) is the pump and I can't see this being used to activate the boiler??
Anyone got any ideas before I spend another 60 quid to try and sort it!
Many thanks
Mick.
I'm after a bit of advice please. I have a basic hot water / central heating system that is pumped and uses a hot water cylinder. I have a 3 way diverter valve and the usual controller and stats.
The problem I had was with the central heating. If the programmer was switch to on (auto or manual) and the stat was set to high (ie in a situation when the heating should come on) then sometimes the boiler and pump just wouldn't switch on. This was intermittent and worked probably 50% of the time. The hot water side worked fine. The c/h stat and timer are old and my dad had already repaired the board in the programmer a number of years ago so assumed that the problem lay with one of those. Yesterday I replaced the stat and programmer and all seemed fine.....
Until today when I again have the same problem. C/h not working whereby the hot water does.
I'm unsure of how the boiler gets told to switch on. Is this done via the diverter valve? When the c/h doesn't work if I mess around with the hot water to force the valve to move then eventually the c/h will fire into life. I'm "thinking" that the signal to the boiler is sent from the valve and as such this is faulty however it does seem to move to any of the 3 positions fine. The valve is a Drayton BGMVSP-23 and if I remember rightly I changed this around 5 years ago. The only other thing it could be (than the boiler!!) is the pump and I can't see this being used to activate the boiler??
Anyone got any ideas before I spend another 60 quid to try and sort it!
Many thanks
Mick.