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Nuaire Ecosmart (MVHR) "fault"
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<blockquote data-quote="ProDave" data-source="post: 421615" data-attributes="member: 6969"><p>Got to diagnose and fix a fault with little to go on.</p><p></p><p>As far as I can tell this is an MVHR unit (Mechanical ventilation with heat recovery) There is a large galvanised steel box in the loft that all the duct work passes through, but I have not yet found any model numbers on it.</p><p></p><p>Downstairs on the wall is a ES-TC time controller, and an ES-UCF controller which amongst other things has a fan speed control knob.</p><p></p><p>The unit is not working, the fan is not running.</p><p></p><p>On the ES-UCF unit a red "fault" light is illuminated.</p><p></p><p>I have searched for a manual, and you can download the manual for both these wall mounted controllers from here: <a href="http://www.nuaire.co.uk/downloads/im-manuals/commercial/#2808" target="_blank">http://www.nuaire.co.uk/downloads/im-manuals/commercial/#2808</a></p><p></p><p>But the manual for the ES-UCF is about as useful as a chocolate tea pot telling me that when the red light is on it "indicates a fault" No $h!t shelock. But gives me absolutely no clue what fault and how to find out.</p><p></p><p>I suspect it might be a clogged filter (I don't think it's been touched for years) and it's sensing insufficiant air flow or something? when I go back I will open up the box in the loft for a look, which is going to be a pig of a job as it's a very low pitch roof of an industrial unit with not much space, and oh yes, the isolator switch for the loft unit is behind the unit so damn awkward to get to.</p></blockquote><p></p>
[QUOTE="ProDave, post: 421615, member: 6969"] Got to diagnose and fix a fault with little to go on. As far as I can tell this is an MVHR unit (Mechanical ventilation with heat recovery) There is a large galvanised steel box in the loft that all the duct work passes through, but I have not yet found any model numbers on it. Downstairs on the wall is a ES-TC time controller, and an ES-UCF controller which amongst other things has a fan speed control knob. The unit is not working, the fan is not running. On the ES-UCF unit a red "fault" light is illuminated. I have searched for a manual, and you can download the manual for both these wall mounted controllers from here: [URL="http://www.nuaire.co.uk/downloads/im-manuals/commercial/#2808"]http://www.nuaire.co.uk/downloads/im-manuals/commercial/#2808[/URL] But the manual for the ES-UCF is about as useful as a chocolate tea pot telling me that when the red light is on it "indicates a fault" No $h!t shelock. But gives me absolutely no clue what fault and how to find out. I suspect it might be a clogged filter (I don't think it's been touched for years) and it's sensing insufficiant air flow or something? when I go back I will open up the box in the loft for a look, which is going to be a pig of a job as it's a very low pitch roof of an industrial unit with not much space, and oh yes, the isolator switch for the loft unit is behind the unit so damn awkward to get to. [/QUOTE]
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