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Thread: Capacitors

  1. #1

    Capacitors

    How does one tell the difference in a run capacitor and a start capacitor by their appearance?

  2. #2
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    This is the tech to tech chat section.

    In "Any" open section it is against the rules to give out DIY advise.

    With that said, carry on....

  3. #3
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  4. #4
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    Generally speaking start caps are usually black plastic and run caps are metal or gray plastic. The only way to know for sure is by looking at the capacitors value and knowing where it belongs in the circuit
    Quote Originally Posted by k-fridge View Post
    The laws of physics know no brand names.

  5. #5
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    If you click on packard E training all your questions will be answered.
    Challenge yourself, take the CM test --- Certificate Member since 2004 ---Join RSES ---the HVAC/R training authority ---www.rses.org

  6. #6
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    They are in different bins in the truck

    Also if you fit a start cap where a run cap should go, they explode, often quite spectacularly.

  7. #7
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    Quote Originally Posted by monkeyspanners View Post
    They are in different bins in the truck

    Also if you fit a start cap where a run cap should go, they explode, often quite spectacularly.
    very informative . Its been slow these past couple of weeks ,might give that a try
    "I just think things should work properly"
    Freon is a brand name-word


  8. #8
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    Quote Originally Posted by monkeyspanners View Post
    They are in different bins in the truck

    Also if you fit a start cap where a run cap should go, they explode, often quite spectacularly.
    sounds like fun especially when i have a pain in the ass costumer

  9. #9
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    Quote Originally Posted by tinknocker service tech View Post
    sounds like fun especially when i have a pain in the ass costumer

    Yeah! learnt this after working on unit customer had tried to fix themselves, ran it up to see what it was doing (they reported it tripping overloads), thing ran ok then sounded like it was siezing up as the comp laboured and cap over heated, then all this smoke came out the electrics box, found a tiny start cap where two run caps should have been.

    Customer claimed no one had worked on it since last time we were there

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