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Hi all. I have a problem with my potterton combi 80 boiler. The DHW is too hot and sometimes locks out. Heating was on last night and when we ran the bath the lockout button had to be pushed twice in as many mins. I can reset it but it locks out after another minuite or 2. I think it should be...

Hi I have a potterton combi 80. The hot water is too hot almost boiling and the c/h only come on when it want too. it has also started to lock out sometimes. (red light on, needs to press lock out button to restart). This morning it took about 3 hours before it decided to come on. The hot...