i have a potterton performa 24e and the power light is flashing.i have no hot water.the bar is just above 1 although up to a couple of weeks ago it was averaging 1.5.

Dave Crowhurst, November 2019

Work on a gas appliance should be performed by someone who is Gas Safe certified.

https://www.acwilgar.co.uk/Boiler-Manual-PDF/Potterton/Potterton_Performa_System_12-18-24-28e_Install_Guide.pdf

https://forums.moneysavingexpert.com/showthread.php?t=4499941 (Long-ish thread, answer at the end)

sdg, November 2019