worcester 24cdi switching off?

[jacktrade]

my worcester 24cdi boiler is switching itself off intermittently.
I have to press the reset for 5 secs and it fires up afain.
This happens about 4 times a week.

Is the burner or gas pipe clogged up, or is some sensor telling it to shut down.

any clues would be helpful.

thanks

 

[Agile]

An intermittent fault can be very difficult to trace.

It would be a good clue if you can discover what the boiler is doing the the last 10 sec before it locks out.

Tony

 

[boilerdoktor]

do the ch or hwater light flash slow or fast when it goes out???

 

[jackecole]

does it lockout on hw or heating or both?

 

[jacktrade]

thanks boys.

the lights flash fast, and both hw and heating lock out.

I still think there might be some "fault" with the ignition..??

 

[boilerdoktor]

c.h light flashing fast is a sensor fault, hwater is an air flow prob! fan air pressure switch etc.

If you have multiple probs you are better ringing worcester, they will send an engineer for £215 this price includes all parts and labour!

 

[bengasman]

...I still think there might be some "fault" with the ignition..??

Why?

 

[jacktrade]

The boiler works fine..
its just the ch flashes when it goes off.
when I try the hw tap it still doesnt fire up.
so i have to press reset for 5 secs and it works.
i have to assume there is some fault with the ignition, because it goes off about 3 times a week., and i am thinking the burner might be clogged which trips off some sensor.

thanks

 

[bengasman]

That still doesn't tell me why you think it is an ignition fault.
From what you said, it sounds more like the boiler is suffering from severe lack of maintenance.

 

[jacktrade]

I am only assuming its an igniton malfunction of sorts, but i dont really know.
The boiler woks ok apart from on/off routine.
if its somethimg else then I cant see it.
I am a plumber. etc, but not fully knowledged on boiler operation.
hence I`m struggling to find the reason for it switching off.
thanks