central heating pressure too high

[Marco Altieri]

In my apartment the boiler (a Vaillant ecoTEC plus) wasn't working and someone came to fix it.
He opened the valve to increase the pressure and now the boiler is working again but the pressure is always on the "red" region.
Is this safe ? I do not see any radiator air vent to open (see image).
What should I do ?

Thanks

 

[HERTS P&D]

Why don't you ask them?

And why the pic of the radiator?

Andy

 

[Burnerman]

Reduce the pressure out of the red zone by opening a radiator bleed valve - it may take a while, and catch the drips!
On this rad, the valve maybe at the back but its standard size.
John

 

[dilalio]

Depleted air charge in Pv.

 

[Marco Altieri]

Why don't you ask them?

And why the pic of the radiator?

Andy

Ask who? The person that came ? He wasn't an expert, but only a friend of the house owner and when I saw that the pressure was too high, he didn't know what to do either.

The pic of the radiator is to show that there seems not to be any valve.

I do not see any on the back either. Is it possible that these radiators do not have a valve? They seem pretty old.

 

[HERTS P&D]

OK, tell your landlord to send a gas engineer to fix your boiler.

Do you have paper work to tell you that your boiler was serviced within the last 12 months?

There is also a valve at one end of the radiator.

Andy

 

[gigz]

It will have a bleed nipple. On one of the ends or possibly at the back in that top panel about 4" from the end.

 

[dilalio]

Bleed from the highest rads on the system - you'll get any air out that way too.