Ravenheat Whitestar Combi Boiler

[Kenny8888]

Hi

I have a Ravenheat Whitestar boiler which is just over 2 years old.

Recently, I have been experiencing waves of cold water through my hot taps, which has got progressively worse to the point that I now get just cold water with occasional hot waves.

My central heating does not appear to be operating properly either.

I don't know much about boilers, but I've checked the pressure which is steady at just above 1.5, which I think is correct.

I'm not looking for the exact answer as to how to fix this, but some help on identifying the problem would be much appreciated so I can arrange to have it fixed as appropriate.

Thanks

 

[ChrisR]

OK, watch the boiler with a hot tap open wide.
Does it go on - off - on - off??
Now turn tap off, CH on. Does it do the same?

How frequently, in both cases?

 

[Kenny8888]

The boiler seems to stay on all the time, but as the boiler is almost totally encased I can't see much.

The green light stays on anyway - but the ignition is not visible without removing the case.

 

[Kenny8888]

A guy came out to look at this tonight.

He couldn't find the exact problem but says the circuit board needs replaced which is expensive. He has recommended I use the British Gas fixed price deal.

Since he left I have had a hot shower and had the heating on for 2 hours before I turned it off.

He did say that the circuit board will still be capable of giving the correct signals at times, just that it won't do what I want it to consistently.

Does this sound right or was he just unable to find the right answer?

 

[petit_pablo]

A guy came out to look at this tonight.

He couldn't find the exact problem but says the circuit board needs replaced which is expensive. He has recommended I use the British Gas fixed price deal.

Since he left I have had a hot shower and had the heating on for 2 hours before I turned it off.

He did say that the circuit board will still be capable of giving the correct signals at times, just that it won't do what I want it to consistently.

Does this sound right or was he just unable to find the right answer?

Sounds a bit of a cop out to me