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    Replacing H37XL with Secure H3747

    Electrician replaced Horstmann Channelplus H37XL with new Secure H3747 yesterday. Old set up Zone 1 - downstairs underfloor. Usually always on, controlled by wired thermostats in 6 rooms. Zone 2 - upstairs radiators (on generally once day for hour for towels but boost at night if nursery gets...
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    Pyronix EURO 46 V10 - ARC Call Fail bleeps

    Hi all - I'm struggling with the alarm system in our new house. The old owners obviously had ARC monitoring previously, which expired. The alarm was setting and unsetting fine for a while. Now when I unset it at the front door the LCD says 'ARC call fail' and emits two bleeps followed by two...
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