Baxi boiler loosing pressure

[jrtrrror]

Hi all.
The boiler has been loosing pressure as of late. Its not easy to access, being in the loft. I repressurised the system yesterday morning and by the evening it had switched off with a E119 code. I've discovered a leak BENEATH the pressure relief valve. It's leaking from a fitting in the discharge pipe leading from the PRV. I've provided a photo. However, I'm thinking there shouldn't be any water in that pipe. So, I assume that the PRV valve is leaking. I'm currently at work, so am unable to check if water is dripping outside from the discharge pipe. But I'm now wondering if there is an issue with the expansion vessel. As previously stated, I'm not home so can't check just now.
What is the procedure for checking the cause of the pressure loss.
It's a BAXI Duo Tec Combi 33he
Thanks
If you are kind enough to reply, please bear in mind that I'm not 'up' on the terminology
Also, Ive noticed in the past that it would appear you have to repressurise quite high before the boiler will switch back on. And it switches off with the E119 low pressure code even when the needle is in the green section of the gauge, not the red. If I remember correctly.
Thanks again

 

[king of pipes]

You will need the internal expansion vessel repressurising and quite possibly a new PRV there is nothing you can do yourself get a GSI to sort it . Kop

 

[Rob Foster]

Make that call, Xmas is coming and everyone who is any good will be busy ....centralheatking