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Thread: jet dc1100 dust collector repair

  1. #1

    jet dc1100 dust collector repair

    My Jet dust collector will not start. has been sitting for about a month. When I turned it on it just hums. any ideas on what's wrong and how to fix it.

  2. #2
    Quote Originally Posted by alan kopan View Post
    My Jet dust collector will not start. has been sitting for about a month. When I turned it on it just hums. any ideas on what's wrong and how to fix it.
    Sounds like a start capacitor. Can you turn it on, then hit the impellor with a leaf blower? If it spools up, I'd bet it IS the cap.

  3. #3
    Join Date
    Sep 2016
    Location
    Modesto, CA, USA
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    7,214
    Or the start switch is dusty and does not close all the way so the start cap is not in the circuit.
    Bill D.

  4. #4
    I have a Jet AFS-1000B Air Filter I've had in service for 10-15 years. A few years back I had to replace the control board on the unit. As I recall my research at the time indicated the control board had a design or manufacturing flaw. After so much time a circuit on the board would short out. The new control board wasn't cheap, but it was cheaper than purchasing a new unit. Not saying that's your issue, but if you pull the control board out, the burned out spot is easy to see.

  5. #5
    Join Date
    Aug 2021
    Location
    Redmond, OR
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    320
    I'm with Malcom, the start capacitor is the first thing that I would check... provided the impeller can be turned freely by hand.
    Last edited by Michael Schuch; 01-05-2022 at 5:43 PM.

  6. #6
    thanks for the help. It has a 400 mf start capacitor. I looked at Jet parts and they want $128 for the capacitor, I can buy a 400 mf run cap for about $25 on amazon any reason that it should not work.

  7. #7
    Quote Originally Posted by alan kopan View Post
    thanks for the help. It has a 400 mf start capacitor. I looked at Jet parts and they want $128 for the capacitor, I can buy a 400 mf run cap for about $25 on amazon any reason that it should not work.
    Only issue I've ever had is with the physical size of the cap. Often the OEM will use a 'small' one to fit the space available; the after-market caps can be much larger - and often the seller will not state this physical size.

  8. #8
    Join Date
    May 2018
    Location
    Lancaster, Ohio
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    987
    Quote Originally Posted by Malcolm McLeod View Post
    Only issue I've ever had is with the physical size of the cap. Often the OEM will use a 'small' one to fit the space available; the after-market caps can be much larger - and often the seller will not state this physical size.
    I agree.
    I would buy the cap off of Amazon and make it work
    Ron

  9. #9
    Thanks for all the advice. will order one from amazon. I'm kind of embarrassed, I have a degree in electronics but haven't used it for 49 years so I'm kind of out of the loop. thanks for the replies

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