you can check your cold feed by using a magnet as copper isnt metallic where the mag sticks chances are thats where your blockage is.. I have found that using a foot pump attacked too the cold feed is moe effective than a hose mains pressure.1-3.5 bar.....
The heating appliance may be working o.k however the eff will be very low!! Would advise that a replpacement boiler be fitted if not to protect yourself againt a failed boiler in the middle of the winter, work demand is very high at this time and you may find some interesting prices. My advise...
Hey there
The display you are getting if its only a single dash and burner neon on it is more than likley that the fault is a PCB error, however if this only happens when boiler is in HWS mode it may be a blocked plate heat exchanger (Magnetite) would check this first befor blowing a couple of...