Recent content by alx

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    Heating only fires when tank stat in on..

    Top man! Working now.. It's so annoying when you look at something for so long and miss such an obvious fault!
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    Heating only fires when tank stat in on..

    Thanks, It doesn't say that in the manual, but I'll give it a try.. That would make sense.
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    Heating only fires when tank stat in on..

    This strikes me as being a bit odd, but I'm guessing the 3port valve is to blame. I have just fitted a new salus SBMV32. It is all wired up as per the instructions; Blue - Neutral White - HTG Call Orange - HW Call Grey - HW Sat Yellow / Green - Earth All appeared to be fine, the...
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    HSA3 Mid Position Valve Actuator Problems..

    After much more messing about with this I've declared both valve heads to be knackered.. I had the system working at one point, which proves the wiring is correct if nothing else.. I'll get one ordered, and hopefully that will be the end of my problems.. Thanks for the advice..
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    HSA3 Mid Position Valve Actuator Problems..

    Refitted the Actuator. CH now fires the boiler, so I'm quite happy! The actuator however, is remaining at mid-position when HW only is called for.. When the system is off, the actuator is returning to CH only too.. I'm sure it used to return to HW only ? I guess that means its...
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    HSA3 Mid Position Valve Actuator Problems..

    Very useful mate.. Thanks very much. I'm going to double check the two valve heads that I have, to make sure I haven't missed something, but I expect them to both to be faulty. Hopefully a new valve head will sort things..
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    HSA3 Mid Position Valve Actuator Problems..

    Thanks for the reply.. Although similar, my system has a Danfoss HSA3, which has slightly different wiring to what is shown on the danfoss website. My orange wire is connected to HW Call from the tank stat, but not looped into the boiler / pump live.. Maybe that is the issue ?
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    HSA3 Mid Position Valve Actuator Problems..

    As suspected, when calling for CH there is no live supply to the boiler.. (This is with the HSA3 wiring still disconnected) Any advice would be most gratefully received.
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    HSA3 Mid Position Valve Actuator Problems..

    I've been poking around in the terminal box with the multimeter.. The feed from the the programmer for CH on is live when the programmer calls for CH. This is connected to another cable, which I can only assume returns to the boiler for the live supply. The feed from the room stat is...
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    HSA3 Mid Position Valve Actuator Problems..

    I have replaced the whole valve, as the old one was sticking and leaking.. The plumbing side of the valve is now working fine. I also replaced the motorised head as the old one had visible signs of water damage.. The fault I have now is with the electrics of the system. I think I may...
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    HSA3 Mid Position Valve Actuator Problems..

    Hi, A few weeks ago, I had some issues with my heating. The fault was found to be a damaged cable in the Kitchen wall, which was repaired / replaced. At the same time I found the 3-way valve in the airing cupboard to be leaking when set for heating. For the last few weeks I have had the...
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    Danfoss HSA3 Mid Position Valve Wiring

    or, should the Br-Wh wire go to the room stat and the grey / orange go to the cyl stat on / off ???
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    Danfoss HSA3 Mid Position Valve Wiring

    Hi, I had a faulty actuator which I have now replaced, however I have lost the original wiring diagram that I made when removing the old unit from the junction box in the airing cupboard. :roll: I know that the blue is neutral, and the Br-Wh is live. I think that the grey wire went to...
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    3way Mid position valve - Danfoss HSA3

    I suspect I have a fault with my mid position valve. Due to other issues it is currently removed from the valve and disconnected from the terminal box. I have two questions; 1. Can the unit be tested with a multimeter whilst disconnected from the system ? 2. Should the CH function...
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    CH fault - 3amp fuse blowing... Help ? (New problem)

    System is now working with HW. I had made an error with the wiring of the tank stat which I overlooked yesterday.. I do still have an issue, but I'll start another thread for that. Thanks
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