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Refrigerator relay

Discussion in 'Electronic Basics' started by addieb, May 15, 2007.

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  1. addieb

    addieb Guest

    My refrigerator is warm and makes this intermittant clicking sound. My
    research shows it's probably the compressor start relay. The start
    relay has two wires going into it. I removed the relay and it rattles,
    so its definitely bad. Would it be safe to just bypass the bad relay
    (by joining the two wires together) and run the refrigerator for a few
    minutes to just make sure the compressor is fine and still cools the
    box?
     
  2. JeffM

    JeffM Guest

    As a refrigerator is not an electronic device,
    this is the wrong group in which to ask the question.
    You DID ask it in a proper group
    http://groups.google.com/groups/search?q=author:addieb+refrigerator&scoring=d
    but you have used Usenet[1] THE WRONG WAY.

    Next time you feel compelled to ask the same question multiple places,
    do it this way:
    http://www.google.com/search?q=cach...arked-as-Read-in-ALL-*-groups+Newsgroups.line

    [1] This is "USENET" **NOT** "Google Groups":
    http://66.102.9.104/search?q=cache:...*-*-*-*-*-*-*-*-*-*-*-*-*+*-*-policed&strip=1
     
  3. addieb

    addieb Guest

    Dear JEFFM,
    Might I suggest you switch to decaffeinated coffee?
     
  4. Probably not.
    Not necessarily.
    It only starts the motor. After 10 seconds you need to open the switch
    again.
     
  5. Meat Plow

    Meat Plow Guest

    Is it the start relay or overload?

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  6. 99+% of the relays are a current operated starter switch.
     
  7. Meat Plow

    Meat Plow Guest

    Could be a seized compressor cycling on the overload. Could be a bad
    start cap, could be anything.

    --
    #1 Offishul Ruiner of Usenet, March 2007
    #1 Usenet Asshole, March 2007
    #1 Bartlo Pset, March 13-24 2007
    #10 Most hated Usenetizen of all time
    #8 AUK Hate Machine Cog
    Pierre Salinger Memorial Hook, Line & Sinker, June 2004
    COOSN-266-06-25794
     
  8. That's for sure.
     
  9. zack

    zack Guest

    the compressor mabe at fault, that relay is there
    as a cutout for safety.

     
  10. Guest

    As a refrigerator is not an electronic device,

    You still live in the 60s of the last century ?
     
  11. No, it switches out the starting winding after the compressor runs.
     
  12. Guest

    Well, no relay I've known of has 2 wires. The device you talking
    about is most likely a semiconductor device, its resistance is somehow
    proportional to its body temperature. When the motor stops, no
    current goes thru it, its body temp = ambient, and its resistance is
    very low. When the motor attemps to start, the device conducts the
    current for the starter coil, but the starter current also makes the
    device hotter. As a result its resistance goes up high until an
    equilabrium state occurs where the resistance and temperatue stay, at
    this state the starter current's almost cut off

    So, the device somehow works as a timer relay. You can't short the
    two wires together permanently but a few ms when the motor starts. As
    others posts, the problem may be the CAP or somewhere else. But you
    can test that device by reading its resistance with an ohm metter then
    slightly heat it with your zippo...
     
  13. Could be a PTC. But I can conceive of a two wire relay also.
     
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