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Hi there, I need to isolate if my programmer is faulty. Below are the multimeter voltage readings so I will appreciate if someone could give me a light to determine if I need to replace it. (please see the attachment diagram for numbers) When both CH and HW are "off" HW: 239v...

Last week my house was getting chilled so I turned turned on the central heating and my house warm up as expected. I then decided to turn on the hot water but to my surprise few hours later I noticed that I was not getting hot water in any tap. Once the house warm up I turned off the heater...