Baxi 105e - pressure constantly rising to 3 bar, overflowing

[shelts15]

My Baxi 105e is constantly overflowing. I drain the system through the last radiator and put a little bit of pressure back in (0.4 bar) and within 30 minutes the pressure has risen to 3 bar and is overflowing. Is there something glaringly obvious that I am doing wrong? or do I need to get a pro involved? (typical I have just cancelled my British Gas contract!!). Any help would be much appreciated!

 

[kevplumb]

assuming you have disconnected the fill loop

hw /heat ex is passing

 

[twgas]

if your problem occurs without the boiler running it is either
a) filling loop passing - disconnect it, it may make you wet so be wary.
or
b) secondary heat exchanger leaking internally - as you have disconned the filling loop at a), the still increasing will confirm this.

 

[kevplumb]

slow outa the blocks this morning mick

 

[twgas]

slow outa the blocks this morning mick

am I slow or are you quick, smart-ar5e.

 

[kevplumb]

woke up with indigestion

and thought id hava look in

sorry if i hit a nerve mate

 

[twgas]

no nerves hit, hope your poor little tummy improves.

 

[kevplumb]

thanks fella

 

[shelts15]

Sorry for the ignorance - how do i disconnect the fill loop?

 

[twgas]

there should be a butterfly type on the braided pipe where you fill up from.

 

[kevplumb]

View media item 11214
undo the silver bits on the hose

 

[shelts15]

it seems to have worked - thanks guys - brilliant advice! hope the indigestion gets better!!

 

[twgas]

View media item 11214
undo the silver bits on the hose

I've got a pic similar to this, but I can't seem to post pics, used to be able but it's stopped working