Hi all. This is my first post on this forum, but I have been reading over the last few days, researching the problem with my CH & HW boiler - a Potterton Suprima 60. Need I say more? Yes, it has the intermittant lockout problem. Many thanks for all the advice & helpful tips.
I'm moving house soon so didn't want to spend an armand a leg buying a new board (although they are cheap(ish) on ebay at the mo. So I bit the bullet and took the existing PCB out to have a look for dry joints (having 1st turned the power & gas off). Removal is a very easy, 5 min job. Lo and behold I found 5 suspect dry joints which were easily fixable. All seems to be well so far! (Touchs wood).
There was a label stuck the metal frame the pcb mounts on which makes me very suspicious of Potterton's claim - as quoted elsewhere in this forum - that there is no known fault with this boiler pcb. The text on the label is
"For replacement pcb order 5102160. (Part) 407750 NOT to be used" (Their emphasis).
Now, for a manufacturer to even consider sticking that label inside one of their products, they A) must have considered it very likely that the pcb would develop a fault at some point (otherwise what's the point of going to the trouble of printing the labels), and B) to emphasise so boldly not to replace with a similar part, they must have known that the original 407750 pcb design was faulty on a systemic basis. If, as Potterton might contend, the replacement design was just an evolutionary update to the pcb, and that there is (in their words) "no known fault" with the 407750 original, then it would not be logical for them to feel the need to put the label warning there!
Class action against Potterton, anyone?
I'm moving house soon so didn't want to spend an armand a leg buying a new board (although they are cheap(ish) on ebay at the mo. So I bit the bullet and took the existing PCB out to have a look for dry joints (having 1st turned the power & gas off). Removal is a very easy, 5 min job. Lo and behold I found 5 suspect dry joints which were easily fixable. All seems to be well so far! (Touchs wood).
There was a label stuck the metal frame the pcb mounts on which makes me very suspicious of Potterton's claim - as quoted elsewhere in this forum - that there is no known fault with this boiler pcb. The text on the label is
"For replacement pcb order 5102160. (Part) 407750 NOT to be used" (Their emphasis).
Now, for a manufacturer to even consider sticking that label inside one of their products, they A) must have considered it very likely that the pcb would develop a fault at some point (otherwise what's the point of going to the trouble of printing the labels), and B) to emphasise so boldly not to replace with a similar part, they must have known that the original 407750 pcb design was faulty on a systemic basis. If, as Potterton might contend, the replacement design was just an evolutionary update to the pcb, and that there is (in their words) "no known fault" with the 407750 original, then it would not be logical for them to feel the need to put the label warning there!
Class action against Potterton, anyone?
