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Just come home from work to find my house really really hot and found the boiler to be running when the heating controls (Potterton EP2) were on standby and the stat for the room temp was not lit up as in heating and water off. The heating timer went off at 8am like normal and the heating and...

I have a Potterton Suprima 30 with the newer Siemens board as the old board failed a few years ago but the boiler has developed a fault which is baffling me. The timer comes on as it should and the three port valve moves to the correct position but then the boiler does nothing and the LED...

I have dripping from my feed/expansion tank overflow. This only occurs when the heating on and boiler fired up. When the heating is off then the overflow does not drip at all. I left the heating off for about ten hours with no dripping. The dripping water appears to be cold but not looked in...

Our pump is set to speed 3 in a 3 bed semi house. Does this sound ok? If I lower the speed to 2 the heating seems to take quite a bit longer to reach temperature.

I have a potterton suprema 30 in a 3 bed semi, can someone tell me what setting the circulating airing cupboard pump should be on? Thanks in advance

I have a potterton suprema 30 boiler and in the airing cupboard I have a stopcock which is on a small gauge pipe than the rest of the setup. It goes from output side of pump before actuator valve to the pipe coming out of the bottom of the tank. Is this some sort of bypass and should it be...