Logic Combi 24 pressure too high

Frantch

Hello,

Usually the water pressure is around 1.5 bar. But this weekend I was away and my flatmate told me that the boiler stopped working and that the boiler showed "error F" that means water pressure below 1.

So I told her how to put it back at 1.5 by opening the 2 valve blue and black (filling loop).

But by mistake she oped the black valve (extreme left the one attached to the gauge) and the pressure jumped to 2.2 (when cold) and keep rising when hot !!

I am not a plumber far from it. So if someone could tell me how to put it back to 1.5 ?

Thank you!

david29dpo

Bleed a rad till the pressure drops to 1 bar cold.
Or.... (not recommended) open the pressure relief valve so it sends the excess pressure outside.
Once sorted, dont let or mess with the boiler again!

gas4you

Look for a drain point on the heating system, or under the boiler on either the left or right 22mm heating pipe connections.

DONT use the PRV

keystone

david29dpo wrote: »

Bleed a rad till the pressure drops to 1 bar cold.

Is the right answer or let it out of your drain c o c k.

Or.... (not recommended) open the pressure relief valve so it sends the excess pressure outside.

Wut? Never! "Not recommended" is a serious understatement. The PRV should NOT be operated manually - it is a safety device. In any event its probably operated anyway if the pressure was 2 bar cold and the boiler run up. In that event it won't be working properly now as the seating will be full of carp and it won't be closing properly.

OP - get someone in (the guy who services it for you probably) to give it the once over - perhaps do this years service at the same time.

Cheers

keystone

SNAP

Cheers

warmhands.coldheart

Frantch wrote: »

Hello,

Usually the water pressure is around 1.5 bar. But this weekend I was away and my flatmate told me that the boiler stopped working and that the boiler showed "error F" that means water pressure below 1.

So I told "her" how to put it back at 1.5 by opening the 2 valve blue and black (filling loop).

But by mistake she oped the black valve (extreme left the one attached to the gauge) and the pressure jumped to 2.2 (when cold) and keep rising when hot !!

I am not a plumber far from it. So if someone could tell me how to put it back to 1.5 ?

Thank you!

Highlighted the error of your ways :rotfl: (Sorry, couldn't resist!!)