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Hello all, dont really use this forum much but would like to know if anyone could help. Firstly I manily do installation not fault finding hence my questions. Customer has called to say her puma 80 has hot water but no central heating. There are apparently no external programmer or room stat. I...

Hello all have replaced like for like a grundfos 15-60 pump as the old one was noisey and not pumping to full capacity, also half the down stairs rads where not working although upstairs if ok. Some partical blockage we think. The problem now is it over pumps through the f and e tanks and never...