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  1. 10-08-2008, 08:30 PM #1
    vettehead
    vettehead is offline Professional Member
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    chaterring LLS on WIF

    I ran across a small WIF that was only able to get to 20F. Tstat was calling so LLS was open and unit running. Once I got back to the roof the liquid line was making all this chatter. I ran back downstairs. to discover the noise coming from the LLS valve. While energized the coil chattered like heck, stop for a while, then chatter a lil more then stop, etc . Customer said the chattering noise has been happening for sometime off and on.

    Can those plungers get 'stuck' inside the valve? (This unit has had multiple surgeries) OR...Is there such a thing as a weak coil? Yes proper voltage was delivered to coil.
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  2. 10-12-2008, 09:36 PM #2
    bob_scheel
    bob_scheel is offline Professional Member
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    I carry a permanent magnet made for forcing open a sporlan LLSV. Its a good way to test if the problem is the valve or the coil. Is the coil a 24v one? If so the transformer may be overloaded at times causing the chatter. If its line voltage and as you say you are reading good power w the coil energized I would buy a new LLSV and coil w the understanding from my supplier that I will return one or the other. Then replace the coil first if that does it great. Else pump it down and change the valve.
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  3. 11-27-2008, 12:36 PM #3
    kim
    kim is offline Professional Member*
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    Where did you get that magnet? I have seen them before. I want to put it on my christmas list. Boss gives us $250 for christmas. I buy 1 bottle of Wellers and spend the rest on tools.
    If the superheat ain't right it ain't charged right.
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  4. 12-01-2008, 07:13 PM #4
    bob_scheel
    bob_scheel is offline Professional Member
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    Quote Originally Posted by kim View Post
    Where did you get that magnet? I have seen them before. I want to put it on my christmas list. Boss gives us $250 for christmas. I buy 1 bottle of Wellers and spend the rest on tools.
    Johnstone supply sells them. I think most sporlan distributers can get them as well.
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  5. 12-03-2008, 04:56 PM #5
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    iraqveteran
    iraqveteran is offline Professional Member
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    Quote Originally Posted by bob_scheel View Post
    Johnstone supply sells them. I think most sporlan distributers can get them as well.
    I got mine at CC. Mine is an Emerson I think. Don't use it much but it does come in handy when I need it.
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    If you don't know, then don't do. If you don't know and still do, then be prepared to pay someone else a lot to undo what you did and then do it right.

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  6. 12-03-2008, 05:36 PM #6
    kerreckt
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    CPS makes one. I have used it on Sporlan and Danfoss LLS .....works great Cost about $35.00.
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