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Hi, I was called to a job today where the property had no hot water, the double pole switch would not switch, I removed the face plate and could see the neutral wire burnt out. I have replaced the switch with a new one. The double pole switch feeds a Quartz E7 timer which switched between peak...

Hi i have a potterton performa 28 and when the hot water is turned on the boiler fires up and shuts down after about a minute untill the temperature goes below 80*c then fires up again but at no point does the water get hot. Could this be the dhw heat exchanger or dhw thermisitor or anything...