What do I do? Is this a boiler issue

[mrceltic88]

I have issues with my heating systems and find it all very confusing. Everyday the system loses pressure so I wake up daily and fill the system. Another problem I have is the hot water keeps cutting out, to have a shower I have to keep the central heating off completely and have the water dial on level 1 (on the boiler). When taking a shower the temperature often starts fine then get progressively hotter to the point of scolding then immediately goes freezing. I have run the shower and watched the boiler and the digital thermometer climbs quickly until it hits 99 then it runs through a series of error codes in quick succession.

When preparing the kitchen sink for the dishes the hot water takes ages to kick in and when it does it cuts in and out. I have to keep moving the tap to get a bowl of warm water.

I am discussing solutions with the wife and in my very uneducated opinion we need a new boiler, what I don't want to do though is get a new boiler to find out it isn't even a boiler issue.

I have checked the pipework for leaks and cannot see any evidence of pipe leaks. Sometimes the boiler itself has a very small amount of water release on the underside but I think this happens when I am filling the system.

Do I need to get a plumber out to diagnose the issue. Will plumbers come out to just diagnose the issue or would they expect me to pay them to fix it straight away too? If a plumber does come out how much would or could it cost to diagnose the issue?

Reason I am asking is that I have seen a few affordable options online for a new boiler (on monthly). I am actually hoping it is a boiler issue

 

[ShaunCorbs]

What boiler make and model do you have now ?

 

[mrceltic88]

What boiler make and model do you have now ?

Thanks for the reply. It is a Worcester green Star 30cdi combi.

 

[ShaunCorbs]

Heating works fine ?

And there’s a copper pipe that leads outside is this damp when loosing pressure?

Aldo Worcester do a fixed price repair that will fix your issues around the £300 mark

 

[mrceltic88]

Heating works fine ?

And there’s a copper pipe that leads outside is this damp when loosing pressure?

Aldo Worcester do a fixed price repair that will fix your issues around the £300 mark

That's great info about the repair. Thanks.

Heating kind of works ok. I fill the pressure and heaters will come on but it loses pressure after a few hours. Just checked the pipe that leads outside, seems to be dry but have identified where a peak is coming from. It's from the pipe that the locking key goes into

 

[ShaunCorbs]

Eg where you fill it ?

 

[mrceltic88]

Eg where you fill it ?

Yes mate

 

[ShaunCorbs]

Is it leaking from the right side ?

 

[mrceltic88]

Is it leaking from the right side ?

Yes on the right side, where the locking key connects

 

[ShaunCorbs]

All the time or only when you fill it ?

 

[mrceltic88]

All the time or only when you fill it ?

I'd imagine all the time. We moved into the house around a year ago and the shelf underneath is visibly stained from the dripping.

 

[ShaunCorbs]

Could be from a previous repair can you see where the condense drains into eg white plastic pipe on the far left eg first one

 

[mrceltic88]

Could be from a previous repair can you see where the condense drains into eg white plastic pipe on the far left eg first one

I can see the white pipe but can't see either end of it. One runs into the boiler itself that I cannot get under. The other end runs into the floor of our storage cupboard

 

[Chuck]

Could be the AAV inside the boiler leaking. Fairly common issue with Greenstars AIUI. Needs a registered (Gas Safe) engineer to take a look.