Potterton Boiler Control 407676 resistor value.
- Thread starter ConcreteCow
- Start date
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Chris - for a Potterton (Netaheat 16/22) boiler, which control board could you use instead of the 407676 then?
Hopefully the refurbished one (comes with a year's warranty which was another attraction) will give it all a bit more life but if something goes again is there a better make/model I could replace it with?
Hopefully the refurbished one (comes with a year's warranty which was another attraction) will give it all a bit more life but if something goes again is there a better make/model I could replace it with?
Oily - it's an old boiler, a bit like me really.
fr1day - I looked at R10 not R12
sorry.....
But it still must be a different board cos that one's 21k.
Strange value, red brown orange black black (red)
I expect they went through a manufacturer/design change or two.
Cap relays diodes certainly do fail on that board. "Refurbished" usually means someone just changed the busted bit, so you still have an old relay for example.
Still, for an old boiler, a reasonable thing to try. An OK risk for DIY isn't OK when you're charging for it.
By the way, don't ever take the cover off that boiler, and regularly check the case seal for leaks, & put a CO alarm near it. They kill people.
fr1day - I looked at R10 not R12
sorry.....But it still must be a different board cos that one's 21k.
Strange value, red brown orange black black (red)
I expect they went through a manufacturer/design change or two.
Cap relays diodes certainly do fail on that board. "Refurbished" usually means someone just changed the busted bit, so you still have an old relay for example.
Still, for an old boiler, a reasonable thing to try. An OK risk for DIY isn't OK when you're charging for it.
By the way, don't ever take the cover off that boiler, and regularly check the case seal for leaks, & put a CO alarm near it. They kill people.
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Oily - it's an old boiler, a bit like me really.
fr1day - I looked at R10 not R12
But it still must be a different board cos that one's 21k.
Chris still uses a Netaheat himself. But I dont know which is older.
I cannot find a 407676 but only the rather similar 407677. On the 677 the R12 is a 200k resistor.
Commercially I cannot use repaired PCBs, firstly we are not meant to because they are not manufacturer approved. Secondly if I fitted a 12 year old repaired PCB then its more likely to fail than a new one and I will be expecyed to come and change it for free by the customer.
I do sometimes repair a PCB and use them on test when fault finding or while waiting for a new replacement.
Tony
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