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Thanks for all your replies so far people, very much appreciated! I think I'm going to try and nail it down using a multimeter, hopefully this will give me a good indication where the problem is. So basically from what has been said, it's either the micro switch(s), board fault/actuator or...

I have replaced the motor but sadly has made no difference :( A few times I have been able to get it to move from CH+HW to CH but its not consistent.

Ok can I replace this myself? Looks like a easy job...

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 -...

Independant, seperate, means the same to me... Its a Siemens rwb29, as stated in my first post. I have now been given some advice to try the following: Take the hot water away from the timer, and use the relays normaly open and normaly closed for HW ON and HW OFF - I beleive this should...

First of all, thanks for all your replies.... I wondered what this was for - I have just read about how the mid-position valve works, and it now makes (some) sense why HW OFF is needed. All being said, The HW OFF is still in place. Why home automation? Take a look at www.idratek.com - you...

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 -...