POTTERTON SUPRIMA PROBLEM All aspects of plumbing questions and answers, help, tips and information

[vanpeeman]

Hi, does anyone have any suggestions..... I have a Potterton Suprima, its about 10 years old and had a new PCB about 5 years ago. everything has been ok until we went away for a couple of weeks and turned the water heating off. since coming back and setting the water to come on twice a day again, the central heating now comes on with the water heating even though the CH is set to off on the programmer. not sure weather its a boiler or programmer fault. Any help is appreciated. Cheers.

[htg engineer]

It'll most likely be the three port valve/ actuator at fault.


htg

[vanpeeman]

Thanks HTG, where would i find the valve, and is there anything i can do to repair it, or will it need a new one? Thanks in advance.