Potterton Boiler

In message , John Edgar writes

Lockout is the endpoint of most failures

The question is at what point in the cycle is it failing ?

Is the latest one you bought the new module c/w side panel ?

Potterton Suprima 80 boiler. It worked fine

Hi,

Thanks for reply. I cannot tell you when it is failing as I cannot stand by the boiler and watch it. All I know is that it appears to be completely random - I can discern no pattern. Up until 11 days ago, when we had the 3rd PCB fitted, it locked out on a daily basis, sometimes twice / day. The new PCB was fitted on 08/04 at 17.00 and we had a lockout that evening at 21.00, then no more until yesterday, when we had 2. As far as I know the last 2 boards have been the new kind, with the little black reset button and not the "grey dish" reset button.

John

Seeing as you have as a new board and sensors maybe you should check (just as a formality really) that the boiler is not actually getting too hot. And the flame sensing is OK.

Do you mean the new white module with a square reset button or the

Yes, it has the black, square re-set button.

sharp intake of breath

... time to dig deep and buy a new one then