L
Leon
Hi,
When my central heating has been on for a bit the central heating header tank overflow is dripping about one drip every second or two. Not such a problem at the moment but it wasn't doing this a month ago so I guess something has gone wrong.
I have an old Vulcan Gas boiler. The water pump was replaced some years ago. There are two settings on the boiler controller. Hot water only (This actually heats the hot water and also the upstairs radiators at the same time. Always has done) and hot water and heating. This heats the hot water and all the radiators in the house. The hot water is stored in an emersion tank that I can also heat using electric. If I turn the emersion tank on to heat the hot water I don't have a problem. It heats the hot water as it should and nothing else.
When I first noticed the dripping I went into the loft and noticed that the header tank was full of warm water. Pretty warm but not boiling hot. The water was also 3/4 up the ball cock float. I have changed the ball cock and float with a new one. I have also cleaned out the header tank and let it refill. Now when I turn the heating on I can see water coming back into the header tank from the exit pipe at the bottom of the tank. I am not sure if this is normal? It seems to be warm water that is coming back in too.
I have tried turning the pump down from 2 to 1 - no difference. The only thing I have done on the system in the last 2 months is replaced 3 radiators in downstairs rooms with new ones. I am sure that is just a coincidence though.
The hot water and the radiator water isn't mixing. I have run a bath of hot water and it is fine.
Is the water coming back into the header tank normal? Any thoughts as to why I am getting hot water in the header tank and a steady dripping in the overflow when the heating is on?
Thanks
Leon
When my central heating has been on for a bit the central heating header tank overflow is dripping about one drip every second or two. Not such a problem at the moment but it wasn't doing this a month ago so I guess something has gone wrong.
I have an old Vulcan Gas boiler. The water pump was replaced some years ago. There are two settings on the boiler controller. Hot water only (This actually heats the hot water and also the upstairs radiators at the same time. Always has done) and hot water and heating. This heats the hot water and all the radiators in the house. The hot water is stored in an emersion tank that I can also heat using electric. If I turn the emersion tank on to heat the hot water I don't have a problem. It heats the hot water as it should and nothing else.
When I first noticed the dripping I went into the loft and noticed that the header tank was full of warm water. Pretty warm but not boiling hot. The water was also 3/4 up the ball cock float. I have changed the ball cock and float with a new one. I have also cleaned out the header tank and let it refill. Now when I turn the heating on I can see water coming back into the header tank from the exit pipe at the bottom of the tank. I am not sure if this is normal? It seems to be warm water that is coming back in too.
I have tried turning the pump down from 2 to 1 - no difference. The only thing I have done on the system in the last 2 months is replaced 3 radiators in downstairs rooms with new ones. I am sure that is just a coincidence though.
The hot water and the radiator water isn't mixing. I have run a bath of hot water and it is fine.
Is the water coming back into the header tank normal? Any thoughts as to why I am getting hot water in the header tank and a steady dripping in the overflow when the heating is on?
Thanks
Leon