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Hi All, I'm hoping some of you knowledgeable people can help me with this, I have searched the forum on similar issues with 3 way/mid position valves but none have really answered my questions... Basically the past few days, I have noticed the heating hasn't been coming on when it should -...

Hi All, I have recently purchased a house which we have not moved into yet, and first of all discovered that the old programmer which was a Danfoss CP15 would not allow heating + hot water to be on at the same time - the lights would go mental and you'd hear the relays clicking away. So -...