Boiler/Heating system pressure loss.

[parrot&glue]

Hi All,

New on here although I have been reading the last few days.

I had a Potterton Performa 24 Eco HE Boiler fitted 4 years ago, never had a problem, I have a British Gas Homecare agreement just in case as my last boiler was a NIGHTMARE!

Anyway, had a new bathroom fitted last week, (including new towel rail), so the system was drained. Now seems to be losing pressure but settling around 0.6 bar? Is it possible its just finding its level again?

Had a British Gas engineer 'round today, (annual safety check), I asked him to check but he couldn't find any leaks in boiler, I have checked the release valve myself over the last few days, seems bone dry...

What would you suggest next? Check the new towel rail connections? (which are unfortunately now boxed in...)

I have checked the radiator valves, all dry... I live in a ground floor flat plastic pipes/concrete floor, so unlikely to have been nibbled. Just odd the problem has started since the bathroom has been fitted.

No air in the rads that I can see, hot top to bottom, hmmm, confused...

Any advice/assistance greatly appreciated.

Thanks for reading!