Cental heating header tanker tank overflowing.

[Toolbox]

Hi folks
Getting a constant drip from my overflow tank in my loft and has been now for a few days.It,s a combi boiler system and seems to working ok
heating and hot water.

 

[Lower]

You've got a leak from the float valve.

You can either buy a rebuild kit or fit a new float valve assembly.

 

[Toolbox]

Hi Where is float valve located.I check o/flow tank and found the water to be warm.

 

[david17uk]

Combi boilers don't have tanks

Sounds to me as though your system's overflowing up the vent pipe if you say the water's warm.

 

[Toolbox]

Had a rad moved b4 problem started gave him a call back.He was in and out in 5 mins.He had left the system top up valve open slightly.Now ok
Thanks for all your inputs.