As an ex-tv engineer ( from about 10yr back ) when our boiler has failed I've managed to repair it. It is a Ferolli 701 with the VMF7 pcb.
Looking through this forum I've seen quite a few posts saying " if relay4 is blackened and buzzing then the pcb needs replacing " , I have had this on ours and repaired it ( been running 1yr since ) , at the weekend it started cutting out intermittantly which is how I stumbled across this forum, rather than anything serious it turned out to be the overheat cutoff switch, simply nudging the wires would trip it, one connector wasn't crimped! surprised it worked this long ( 9yr ). The only fault I couldn't fix was a smell of gas when the burner was lit, suspecting the modreg valve I got Ferolli to send an engineer, he used a sniffer and soon found the prob, the burner pressure test point was leaking, he put a screwdriver in to tighten it and it fell off the pipe! it looked to have only been held on by two spots of brazing....£6 for the pipe £75 for the engineer......I guess I could have pursued Ferolli for faulty workmanship but just glad to get it going again as it was November.
So, to the worms........... I am offering to repair VMF7 pcbs with blackened relays for a nominal fee, certainly much less than a new one...
would there be any interest ?
Pete
Looking through this forum I've seen quite a few posts saying " if relay4 is blackened and buzzing then the pcb needs replacing " , I have had this on ours and repaired it ( been running 1yr since ) , at the weekend it started cutting out intermittantly which is how I stumbled across this forum, rather than anything serious it turned out to be the overheat cutoff switch, simply nudging the wires would trip it, one connector wasn't crimped! surprised it worked this long ( 9yr ). The only fault I couldn't fix was a smell of gas when the burner was lit, suspecting the modreg valve I got Ferolli to send an engineer, he used a sniffer and soon found the prob, the burner pressure test point was leaking, he put a screwdriver in to tighten it and it fell off the pipe! it looked to have only been held on by two spots of brazing....£6 for the pipe £75 for the engineer......I guess I could have pursued Ferolli for faulty workmanship but just glad to get it going again as it was November.
So, to the worms........... I am offering to repair VMF7 pcbs with blackened relays for a nominal fee, certainly much less than a new one...
would there be any interest ?
Pete