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  1. #27
    Join Date
    Aug 2002
    Location
    Southold, NY
    Posts
    19,137
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    Quote Originally Posted by timebuilder View Post
    Another cause of contactor chatter is defective low pressure pump down switches.

    In both the case of a thermostat and the pump down switch, you need a clean break in the housing of the device so that the circuit opens with certainty, and does not allow a chattering inside the device to produce a chattering of the contactor.
    I've witnessed that but was easy to determine with a volt meter!

  2. #28
    Join Date
    Oct 2014
    Posts
    97
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    On my Amazon list timebuilder, is the Mimms electronics book that you recommended probably for students one time in a post and you also talked about an electronics kit to go with it. Even though I'm not jim2000, I'm still at the student level and was never sure what type of kit you were taking about. What should I look for, please sir.

  3. #29
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    29,714
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    No problem.

    The kits are usually called something like, "200 Electronic Experiments!" or words to that effect.

    The least expensive (for those who only want a little knowledge) are under $40.

    The more sophisticated kits have more parts, and cost more. The system used is called "bread boarding," with a white plastic block with little holes in it where you push in the device leads...resistors, capacitors, etc.

    You do this using the booklet that comes with the set, and follow the step by step instructions. For most folks, this is what you need to remove the fear and become a confident man around electronics.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







  4. #30
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    29,714
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    Once you are familiar with the experiment kit, you can use the Forest Mimms book to bread board HIS circuits from the book!!!
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist
    Member, IAEI

    AOP Forum Rules:







  5. #31
    Join Date
    Oct 2014
    Posts
    97
    Post Likes
    Thanks timebuilder, I appreciate it!

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