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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...

Thanks I have followed your instructions, the results with the multimeter are as follows: (please see the attachment diagram for numbers) When both CH and HW are "off" HW: 239v (6&2) CH: 239v (6&3) When both CH and HW are "on" but CH was turned "on" first HW: 239v...

Tony Thanks for your reply. I agree with you I don't think the programmer is the problem, I believe the problem are the diverted valves after being unused over the summer so can I ask you: - Is there a way to identify if a diverted valve doesn't work? - Is it common to replace the...

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...