Hot water pressure issue

[coggers]

This is my first post so please help

I have a low hot water pressure, when using more than 1 outlet.

My system set up is as follows:
Arison e-system boiler
Santon Unvented indirect cylinder
Flamco airfix P 100l
Aqua system pv 18l


I have checked the pressure in my Aquasystem pressure vessel and I am getting zero.

The system pressure seems good, around 3.5-4bar, but then drops off significantly when running hot taps around 1.5bar.

Any ideas anyone

 

[Dotty]

Yeah. And I'm afraid ther's nothing you can do with it yourself.

You need a plumber with G3/Unvented to take a butchers at it.

 

[AWheating]

As croppie has stated you need a qualified person to look at the system. Your set up requires annual maintenance to keep it safe and working correctly so why not get a unvented cylinder service booked in with a g3 engineer, they will identify any system issues when they do the basic tests required.

 

[Ermintrude]

Where are u perhaps one of our wage esteemed forum members could assist?