header tank filling with hot water

[jpmplumbing]

when central heating on the hot tank is filling via expansion,
not a lot of heat to rads, what is problem here<
blocked cold feed possibly?

 

[diamondgas]

Pumping over - caused by incorrectly positioned vent & f&e pipes. Depending on how long this has been going on will decide how badly your system has been effected .... Id suggest you get a professional in ASAP 🙂

 

[fuzzy]

can be blocked feed but as diamond gas says get a pro in

 

[jpmplumbing]

hi we have just replaced boiler few month back but no signs then that this has happened before now,
better linking f&e together?

 

[diamondgas]

hi we have just replaced boiler few month back but no signs then that this has happened before now,
better linking f&e together?

You could combine the f&e as you say or make the system sealed. It's unusual for a new boiler to 'cause' the issue though?

 

[gaspastemania]

How much pipework was cut out for new boiler install?
possibly made a muck up on where the vent is to be re-plumbed?
just a thought!

 

[Heating-eng]

Is it pumping over, is the expansion high enough ?
Or blocked ,pump set to high.