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  1. #1
    Join Date
    Jan 2011
    Location
    Bradford On. Canada
    Posts
    7

    Confused start & run capacitors

    Does it matter if you change a compactior (start) with a run compactior?
    I have gone into to the supplier to find only run compactiors, and I would like to know does it matter.
    Thank You

  2. #2
    Join Date
    Jun 2010
    Location
    North Fl
    Posts
    154
    need more details... What are you trying to do....
    HOW MUCH DID YOU SAY???

  3. #3
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    18,592
    Yes, it does matter. They are not the same.

    We usually dicuss technical topics in the pro residential forum.

    Pros should post their technical questions there, or in pro commercial, as is appropriate.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  4. #4
    Join Date
    Sep 2002
    Location
    Virginia
    Posts
    3,181
    Start caps and run caps might seem like they are similar, but they are very different. If you swap them around you might end up damaging a motor.

  5. #5
    Join Date
    Apr 2001
    Location
    Western PA
    Posts
    1,801
    Is 'compacitor' what you do to repair a swelled capacitor? Do you use a capacitor compactor?
    Jason

  6. #6
    Join Date
    Feb 2010
    Location
    In a boiler room
    Posts
    7,128
    Quote Originally Posted by bja105 View Post
    Is 'compacitor' what you do to repair a swelled capacitor? Do you use a capacitor compactor?
    I even googled it and couldn't find out what a compacitor is!

  7. #7
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,744
    if it didn't matter they wouldn't make both kinds.

  8. #8
    Join Date
    Aug 2010
    Location
    Little town in Texas
    Posts
    324

    oh yeah..

    Quote Originally Posted by t527ed View Post
    if it didn't matter they wouldn't make both kinds.
    Yesterday, 07:35 PM
    t527ed
    Professional Member*
    Join Date: Mar 2005
    Location: burlington county n.j.
    Posts: 8,678
    if it didn't matter they wouldn't
    make both kinds.

    ^^^....what he said...^^^
    Now that's funny...can't get more "matter of fact"..than that....damn...I might put that under my quotes...
    "If you can’t describe what you are doing as a process, you don’t know what you are doing." ~ W. Edwards Deming

    All those who wander..are not lost.

    Do NOT..mistake my kindness for weakness.

    The early bird may get the worm..but the second mouse gets the cheese.

  9. #9
    Join Date
    Oct 2010
    Location
    AZ
    Posts
    647
    Quote Originally Posted by chuckcrj View Post
    I even googled it and couldn't find out what a compacitor is!
    That's because the corect spelling is compacitior


  10. #10
    Join Date
    Sep 2011
    Location
    Oklahoma
    Posts
    5
    Understand the type/variety of oil has changed....anybody got any info on this?

  11. #11
    Join Date
    Jul 2011
    Location
    Central PA
    Posts
    177
    Last week I replaced an evaporator fan motor in an ancient looking reach in freezer. It was an old GE motor, made in the USA. The replacement I got from Meiers' was also a GE only it was made in China. It failed after less than a week. May have been a coincidence but I'm more inclined to think the 12 year olds making $2/hr and working 15 hour days are slacking.
    "Good judgement comes from experience. Experience comes from bad judgement."

  12. #12
    Join Date
    Sep 2011
    Posts
    19
    Has anyone noticed a pattern in the types of capacitors that are failing prematurely? I changed a 60 MFD @370 run capacitor on a compressor 4 ton. It was drawing 21.7 amps. With new capacitor the amp draw dropped to 14.1. In the last 10 years I have changed 5 times as many capacitors as I did in the 90's.

  13. #13
    It's just like everything else, made cheaper to keep the share holders wallets fat.

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