T5 Connection Issue *%#!

Discussion in 'Lighting' started by Garethmur, 7 Sep 2010.

  1. Garethmur

    Garethmur

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    So I bought two Reeftek T5 tubes (54W) over the week end (Need 12 to complete my canopy)
    Got the 2 to test the setup... ballasts n all...
    I Think I may know why...
    But could some1 lend their experience as to why when I got them connected, the lights stay on for like 10 seconds and then switch off... i have to unplug and plug back in to get them on again... then for only another 10 seconds or so.... What did I do wrong? or is something faulty?

    Thanks
     
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  3. Slummies

    Slummies

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    you have wired it wrong.. happens when you have crossed wires,etc
     
  4. rakabos

    rakabos

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    Do all the lights switch off or just the new ones? Did you get new ballast with the new tubes?
     
  5. Garethmur

    Garethmur Thread Starter

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    No No, there are only two connected now, still need to buy the rest... All New, Never used the ballasts or tubes be4. Jus wana make sure I know whats what when I do get the rest and build it into my canopy...
    Both light come on, then both switch off...

    I dont think the wiring is wrong... If I followed the diagram on the ballast correctly that is... but it looked simple enough....

    [​IMG]

    Im I correct in thinking that each circle is the end of the t5 tubes? if so, im pretty sure the wiring is correct... but ill check again...
     
  6. magman

    magman

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    I had a similar problem, when the globes were warm. But the confusion/problem, was that it had something to do with the timer. I changed the timer, and the problem stopped. I have a feeling that something has a weak connection and cannot put out the right amount of electricity. Try all your conections, because if it goes out after 10 minutes, it has more than likely something to do with the lights warming up, and the heat has a problem/loose conection.
     
  7. Garethmur

    Garethmur Thread Starter

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    thanks, but its like 6 to 10 seconds not minutes....
     
  8. 459b

    459b Moderator MASA Contributor

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    something looks wrong..why there only six wires going to the ballast?
     
  9. Garethmur

    Garethmur Thread Starter

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    thats the way it is on the ballast, its an electronic ballast, the two tubes are bridged on 1 side
     
  10. Garethmur

    Garethmur Thread Starter

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    I connected them as such...[​IMG]
     
  11. Neil H

    Neil H Moderator MASA Contributor

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    check for loose wires, i had the same thing

    the wires are either loose or it is wired wrong for sure !
     
  12. Garethmur

    Garethmur Thread Starter

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    Thanks, gona tinker some more on the weekend...
     
  13. brentv

    brentv

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    Also check the wiring leaving the ballasts going to your power... could be slightly loose!!!:whistling:.... like a goose!!!
     
  14. lanzo

    lanzo Sponsor

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    The wires maybe loose in the endcaps...or one endcap might be a bit faulty

    Had the same problem with a client and we used new endcaps and new wires...this might work for you too
     
  15. Garethmur

    Garethmur Thread Starter

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    Thanx Lanzo,
    After I called you, i rechecked all my connections and realised that maybe i was using the wrong type of wire, i posted the question here to see if there may be anything else i may have missed...

    im gona get some other wire the weekend and try again...
    Thanks all for the respones, ill let use know what happend after the weekend...
     
  16. lanzo

    lanzo Sponsor

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    Shot man....interested to know what went wrong
     
  17. magman

    magman

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    when I first changed to T5's, I used end caps, and one was faulty, both tubes would flash on for a split second.

    It could be an end cap conection, inside the end cap. Even an electricion could not help, I took tubes back to the lfs to test, all worked fine, turned out it was only one conection in one of the end caps. Also are you sure that the ends you conect to each other are in the corect postions in the ballast?

    Does your ballast have have 7 conections for the lights? If so is 4 empty?

    Here is how I connect mine on the ballasts

    Tube 1,
    Connect both points on tube 1 "A end", both conections to holes 1 and 2 in the ballast.
    Connect one point on tube 1 "B end" to hole no. 3 in the ballast.

    Tube 2,
    Connect both points on tube 2 "X end", both conections to holes 6 and 7 in the ballast.
    Connect one point on tube 1 "Y end" to hole no. 5 in the ballast.

    Connect both tubes now, the spare end on tube 1 "B end" and connect it to the spare end on tube 2 "Y end"


    If the ballast has 7 connections, then the 4th conection should be empty.

    Check where you connect the wiring, I think the two inside conections are the ones you want, the connection closest to the edge is for the earth.

    Check each conection, if it's not that, it has to be an end cap.
     
  18. lIghty

    lIghty

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    It could also be bulbs or ballast problem.

    I've got 4x 39w on 2 seperate ballast doing similar problems, all wiring tripple checked!
     
  19. rajah

    rajah

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    I had the exact problem. You need to make sure the tubes are secured in the end-cap properly. It will come on and go off if there isn't a proper connection. Try tighting the end cap properly or moving them closer together. The wiring seems to be correct. Try using 1mm wire (higher heat resistance) and not flex. The 54w tubes get flipping hot (picked up my water temp by over a degree, and its placed about 10cm from the water), but only after a while, so the flex wont be the immediate cause.
     
  20. rajah

    rajah

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    Try loosening the end caps, and moving them closer together by force first, turn on the lights whilst trying to hold the caps together and try it. It's how I got mine working after potting around for a while...
     
  21. lIghty

    lIghty

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    but mine will work for 10-15 min and then go off, not straight away.
     
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