Boiler pressure shooting up to 4 bar

[Rhys23]

Craig Watson. My bad. How do I change that?

 

[Rhys23]

The flow and return valves are open

 

[Aire]

Craig Watson. My bad. How do I change that?

You can't, you need to get the gsr badge so you can gain access to the section. That's down to admin but it isn't a quick process

 

[Rhys23]

Could adding a secondary expansion vessel rectify this issue?

 

[ShaunCorbs]

How big is the system? Rads

 

[Rhys23]

• 7 rads in a small bungalow

 

[ShaunCorbs]

So internal should be ample

As your past the 10 post mark now

Send either me @Riley or @Harvest Fields a pic of your gas safe card front and back so we can process your request

 

[Riley]

Sorry buddy I’m not doubting that you’re GS but the conversation is still in open forum. So any Joe public can read it. Get your posts to 10+ and send @ShaunCorbs @Harvest Fields or @Riley pics of your GS card, front and back and we’ll get you in the GS section

 

[ShaunCorbs]

Gs section

 

[Harvest Fields]

Cheers shaun

 

[Rhys23]

Thank you. The boiler is not rising consistantly. Sometimes it is fine when the hot water is on. Other times it will shoot up to 4 bar just after the hot water is on. The heating is not on whatsoever, would the hot water being in demand cause the pressure to rise normally?

 

[Aire]

If the pressure isnt rising consistently, and the prv doesn't blow when the gauge reads high, I wonder if the pressure gauge is faulty? Maybe attach a secondary pressure gauge on an easily accessible part of the system so you can compare to the one at the boiler.

 

[Burger]

Did you check the expansion pipe/tube for any muck/debris? What make/model of boiler?

 

[Aire]

Did you check the expansion pipe/tube for any muck/debris? What make/model of boiler?

Already been answered, post 9

 

[Burger]

Already been answered, post 9

Doh! Didn’t twig it was same post as the other day: