Danger of fire - JML Pest Shield

Discussion in 'Motorhome Chat' started by GJH, Sep 2, 2010.

  1. GJH

    GJH Funster Life Member

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    In the excellent Winterisation Thread, Roger has mentioned the use of ultrasonic rodent deterrents.

    We have a reasonably large garden backing onto fields so get mice in the garage from time to time and a couple of years ago we got some in the house. To try to keep them out we bought a JML Pest Shield for the house but then Jill read of a better one so the JML was relegated to the garage.

    By pure coincidence I was talking to my neighbour about them this morning and it reminded me that the JML didn't seem to be doing much good (I've caught mice in the garage from time to time). On taking it out of the socket I found discolouration on both the outside and the "prong" side and signs of melting near the prongs. The device isn't working and has obviously gone wrong at some time causing it to overheat. Luckily it didn't catch fire.

    I've heard in the past of a plug-in timer causing a house fire so it's a good idea for anyone who has any of these "plug in and forget" devices to check them on a regular basis and make sure that they aren't overheating.

    Graham
     
  2. Dodgey

    Dodgey Funster

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    Wise word Graham:thumb:


    We had some of those timer widgets and indeed one of them did start to discolour and smell, that smell of burning plastic. I wont use them now.
     
  3. scotjimland

    scotjimland Funster Life Member

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    Hi Graham

    I think it is more likely the wall socket is causing the problem rather than the prongs.. these devices only use milliamps.

    The female prongs in the socket can become slack and eventually start to heat up , thereby passing the heat to the plug. Loose connection(s) in the socket also cause this..
     
  4. pablomc

    pablomc Funster Life Member

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    We have the those ultrasonic rodent deterrents at work. I had to move the one in the office as I could hear it, so either I have good hearing for my age or have rodent tendencies. :Blush:
     
  5. GJH

    GJH Funster Life Member

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    Thanks Jim. I haven't had any problems running other devices from the socket but I'll check it anyway.

    Graham
     
  6. Dodgey

    Dodgey Funster

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    In the case of our timer widget, it was definatly the widget at fault and not the socket, mind you you're not wrong as I had a problem with one of the house sockets, so undid the screws and it came of in my hand, ALL the wires live staring at me. Turned the power of then:Blush::Doh:

    Me to, they drive me mad :Rofl1::Rofl1:
     
  7. scotjimland

    scotjimland Funster Life Member

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    I don't like these plug in timers .. especially the cheap ones .. I had a one fail and when I had a gander inside it was absolutely rubbish .. maybe ok for a low wattage lamp .. but some use them on washing machines / dryers .. with a 3kw load
     
  8. Dodgey

    Dodgey Funster

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    :Eeek: I'd love to think you are kidding but........:Doh:


    Reminds me of next doors Mrs. You know how it is, you need to drill a quick hole and the plugs just to far away, so you grab the extension lead unroll just what you need, drill said quick hole and put the lead away, porper use unroll completely, yes?

    Next door had done this without realising Mrs kicking about, so he's at work and as they are redoing the kitchen there is nowhere to plug in the washing machine OR drier. Yup, she grabs extension lead, unrolls a foot or two, plugs BOTH in and hits go. Fortunatly just a new extension lead needed but it does teriffy me the lack of understanding some people have of what they are doing, and I'm no expert:Eeek:
     
  9. GJH

    GJH Funster Life Member

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    Just checked the socket. Wiring connections are nice and tight and insertion/removal of plugs is positive with no feel of slackness.

    Looks like it was the device in this case but obviously good advice to check sockets (and plugs on devices) from time to time as well.

    Graham
     
  10. scotjimland

    scotjimland Funster Life Member

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    Nothing surprises me .. I've seen it all , and worse ..

    but even a small load on an an unwound extension cable will cause it to heat up.. I saw exactly the same thing happen to a guy using a 4 " angle grinder .. and some of the sights you see on aires are scary .. van after van piggy backed onto each other with little regard to load .. yet they get away with it .. :RollEyes:
     
  11. Dodgey

    Dodgey Funster

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    One of my pet hates/paranoias on site is the wound up EHU lead, under the van:Doh:
     
  12. GJH

    GJH Funster Life Member

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    Doesn't wind you up does it? :Rofl1::Rofl1::Rofl1:

    Graham

    P.S. I agree with you wholeheartedly
     
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