i have seen it happen but their was wire inside the boiler touching the case and those triping the system but pcb fuse blew i replaced the fuse and changed the wiring harness on the fan on baxi solo
rip off gas safe engineer on pcb ???????? help please
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did he carry out electrical safety checks ie short circuit resistance to earth? these pcbs are good as gold so i would not fit a new one yet.
isolate electics go from neutral to live you need at least 20 ohms go from earth to live you need at least 2meg ohms, if these are ok its not the boiler, go to pump again live to neutral above 20 ohms the same with the motorised valves.
if these pass its probably your electrics possibly sensitive rcd
hope this helps
isolate electics go from neutral to live you need at least 20 ohms go from earth to live you need at least 2meg ohms, if these are ok its not the boiler, go to pump again live to neutral above 20 ohms the same with the motorised valves.
if these pass its probably your electrics possibly sensitive rcd
hope this helps
can you see if there are any leaks causing damp in the electrics etc? (in the boiler)
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RRP is about 120.00+vat, but I would have to disagree on these boards being reliable, although I don't think it is very likely to be the faulty component in this case I fit more of these boards than any other now that most suprimas have been changed.
The OPs boiler has change from a prima to a suprima somewhere in this thread 
Most likely cause of your problem is an external fault.
Most likely cause of your problem is an external fault.
Prima/Profile pcb's are one of the more common we've changed, if not number 1.
Saying they're "Very reliable" is a joke. Half a dozen years is about average. They nearly always fail in one of 3 ways - I've drawn out the circuit and examined failed boards.
But it's VERY unlikely that the pcb would take out a fuse. That's far more likely to be water in the motorised valve or pump electrics.
If it's an Earth trip that's going (RCD) then other things like the fan, or even the room thermostat (wet walpaper paste!) come in to question. A boiler engr would find that in moinutes, if it always does it.
Why do people who haven't a clue about the boiler bother to post in threads like this?
Saying they're "Very reliable" is a joke. Half a dozen years is about average. They nearly always fail in one of 3 ways - I've drawn out the circuit and examined failed boards.
But it's VERY unlikely that the pcb would take out a fuse. That's far more likely to be water in the motorised valve or pump electrics.
If it's an Earth trip that's going (RCD) then other things like the fan, or even the room thermostat (wet walpaper paste!) come in to question. A boiler engr would find that in moinutes, if it always does it.
Why do people who haven't a clue about the boiler bother to post in threads like this?
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