central heating won't turn off

[matt66]

I have a ideal HE24 boiler. Problem is it turns central heating on its own and only way to stop it is to turn boiler off but when I turn it back on, it still puts heating on. Before I have turned boiler off for a few hours and when I have turned it back on, it fixed but now doesn't. Really worried its gonna cost a lot to fix. I don't have much money. Any help will be greatly appreciated.

 

[sonray ltd]

Has the system got 2 port zone valves ?
If so check it not sticking open or micro switch sticking on.

 

[matt66]

Has the system got 2 port zone valves ?
If so check it not sticking open or micro switch sticking on.

Don't know anything about boilers so couldn't tell you. Would be in the
Manual?

 

[sonray ltd]

Look in airing cupboard etc where hw cylinder is useally you see a pump just after the pump will be 1 or 2 valves in the pipework.

 

[matt66]

Look in airing cupboard etc where hw cylinder is useally you see a pump just after the pump will be 1 or 2 valves in the pipework.

My boiler is a combi boiler which is in the kitchen. Ive added a pic of it.

 

[TBServices]

View attachment 8641

My boiler is a combi boiler which is in the kitchen. Ive added a pic of it.

Oh dear. Sounds like a controller issue.

 

[matt66]

Oh dear. Sounds like a controller issue.

What part do I need and is it gonna expensive?

 

[TBServices]

You need an gas safe engineer. Can't be diagnosed on the Internet.

 

[matt66]

You need an gas safe engineer. Can't be diagnosed on the Internet.

Im stuffed then because there is no way i can afford for an engineer to come out.

 

[petercj]

Im stuffed then because there is no way i can afford for an engineer to come out.

Have a look in your local paper, there are usually firms around that do free estimates - it might not be as costly as you fear.

 

[matt66]

Have a look in your local paper, there are usually firms around that do free estimates - it might not be as costly as you fear.

I`ll do that thanks.

 

[acecharly]

looks like the pcb's already done one before now

 

[matt66]

looks like the pcb's already done one before now

What is PCB?

 

[acecharly]

the orange thing thats was replaced at sometime

 

[matt66]

Had to replace mine about 2 years ago. My uncle has just had to replace his as well.