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    Please explain ....simply

    You beat me too it, didthathurt! Too slow typing (and too wordy?)! Anyway, glad we agree on the gist of it all :lol: .
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    Please explain ....simply

    Hi penlopej- Don't worry about not understanding any of this, you're not an electrician, after all! I'll try my best to explain some, if not all, of it (others will no doubt follow): 1) The 'supplementary protection' referred to here is a Residual Current Device, or RCD, which is designed...
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    BIOS disaster!

    No, eggplant, I haven't swapped out the RAM yet. I will try that next along with physically removing & replacing the battery. What's a mem test CD and where can I get one? The way things are at the moment, I'm not sure that I will be able to insert any CD other than the one with the BIOS that...
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    BIOS disaster!

    Na, you must've been seeing things. Too many late afternoons :D So, any suggestions, gents? Am I totally sh@gged or can my £5M super computer be saved?
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    BIOS disaster!

    No, sadly I can't get as far as the BIOS screen (however the window is quite near :wink: ). I have followed the Asus 'BIOS Recovery' routine in the user manual (by reflashing from CD-ROM, as I mentioned above), but this doesn't work either. Regarding the advice about removing the battery, I...
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    BIOS disaster!

    Update...have downloaded latest BIOS revision, burned to CD-ROM (renamed file appropriately) and the same thing as before happened i.e. it found the file, started flashing, asked me to reboot, in a nice husky voice, but still no joy: it just goes round in a circle, starting with "Bad BIOS...
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    BIOS disaster!

    Wait a minute...I am detecting a fault in the HAL 9000 unit...will have to go EVA... :lol: Thanks for the replies so far. Cheques are in the post :wink:. As my fancy HAL, sorry XP unit is rack-mounted and a major hassle to remove, I guess I prefer the option of downloading a fresh BIOS and...
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    BIOS disaster!

    Hi gents- Now it's time for my Windows XP PC to start giving me gip, it seems... OK, it's an Intel P4 3.2GHZ chip on an Asus P4C800-E Deluxe mobo. Went to switch it on yesterday and got the following message as it tried to load the BIOS: "Bad BIOS Checksum. Starting BIOS recovery. Checking...
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    Trying to fault find Honeywell Y-Plan system

    Yeah, I see what's happening now. Thanks for all the helpful advice, by the way :D
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    Trying to fault find Honeywell Y-Plan system

    So it's Honeywell United 1, Sunvic Wanderers 0...half-time or full-time score? :)
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    Trying to fault find Honeywell Y-Plan system

    I came across that, too - weird!? So...the Sunvic Momo anyone? :?
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    Trying to fault find Honeywell Y-Plan system

    I have just told my client to go out and get one and I'll fit it Tuesday. You're clearly a man of experience, so please elaborate!! Thanks. (just cancelled his action so awaiting feedback from yourself and anyone else in the know...) Chrishutt - ta, will email file to you this morning :D
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    Trying to fault find Honeywell Y-Plan system

    Ah, so problems are female in Italian! Well, in a crude way, that sort of makes sense as I just split up with my Italian girlfriend recently... Yes, my feeling is that the valve and head are not a perfect match. I must admit to being a tad disappointed with the rather 'rickety' mechanics of...
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    Trying to fault find Honeywell Y-Plan system

    Phew, busy day....I have the entire sequence (drawings plus text in order) created in a Word document. Not sure how to get it into the forum: I will contact admin unless someone knows. Back to el problemo...no, the room stat was wired fine (I checked manufacturers drawing and terminal 4 is...
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    Trying to fault find Honeywell Y-Plan system

    Just about to go back to my client, but had a quick look at a photo I took of the room stat connections last week (should've checked this out earlier, I guess). Live on 1 (OK), switched live on 3 (OK), but neutral on 4 rather than 2 (?). I'll try swapping it around, but any thoughts?
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    Trying to fault find Honeywell Y-Plan system

    Er, you're going to think this a bit mad in this age of word processing, but I actually cut out and pasted the text beneath the drawings using Pritstick! :D However, I will do an electronic version (as it is useful and took me a while to figure out!) and post it somehow (have to figure out...
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    Trying to fault find Honeywell Y-Plan system

    Hi guys - done my cutting and pasting (finally got drawings in correct order, with correct blurb - thanks). However, in trying to identify my client's problem, the sequence is somewhat reversed. Let me explain: If he starts with CH only on, then it seems the valve will be fully diverted to...
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    Trying to fault find Honeywell Y-Plan system

    Thanks for the link, I'll check it out shortly. I have just acquired a damaged power head to play with. Apparently the electrics are fine, just the mechanism is sh@gged. By the way, the only place I've seen mention of 100V on the orange wire is in Honeywell's own blurb. Could be a...
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    Trying to fault find Honeywell Y-Plan system

    I've had a quick glance through the drawings and am a bit puzzled in places, perhaps unsurprisingly as, though I know something about electrics, I am new to these controls. It seems that the opening and closing of the room stat is not indicated (it seems to remain closed), though the red...
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