Recent content by nothot2012

The pump is only 4 years old and is a grundfos 15/50. It seems to be functioning fine , I have tried all three speeds and I can see the pump spinning when I remove the cover screw. It also sounds fine. A plumber came out and fitted a new boiler control thermostat but this has made no...

i've run some sludge remover through it and the water has come out surprisingly low in sludge, I was hoping it would cure it but its hasnt. The water leaving the boiler is v hot, and the first few metres of pipe, through the pump and the motorised valve heat up really quickly and get too hot to...

Thanks for the quick response. I have tried the rebalancing, I got some heat to the radiators not previously heating up by shutting off all the other radiators. then gradually reopened them to rebalance. BUT the boiler is still switching off and on repeatedly and the temperature in the house is...

The two radiators furthest from my boiler are not getting hot. The boiler is a potterton profile 60E. I have motorised valves controling heating and hot water. hot water is working fine. I have checked the pump and the motorised valved and they are all working fine. When the boiler fires up...