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  1. M

    Changed HW/CH programmer that wasn't working..no joy.

    Good lord - whatever is wrong the electric shower stopped working! When I switched the power off to the heating it came on again. I'm guessing it's definitely electrical then.
  2. M

    Changed HW/CH programmer that wasn't working..no joy.

    I can check the connections on the back - does it sound like a electrical problem? It wouldn't surprise me if they are loose. The previous owner has previous if you know what I mean! The only switch is a wee screwlock on the front which neds turned for a pumped system, which I have done...
  3. M

    Changed HW/CH programmer that wasn't working..no joy.

    It was exactly the same programmer so figured that it would be the same connections.
  4. M

    Changed HW/CH programmer that wasn't working..no joy.

    Here's the basics My Horstmann 425 clock packed in, but the switches were still working to turn on and off. Then they stopped working altogether , so I figured the problem was the programmer. I bought a new one today and fitted it on the old backplate, but it's not fixed it. When I switch...
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