Results 1 to 6 of 6

Thread: 460/1PH Motor

  1. #1

    460/1PH Motor

    So I replaced a 208-230/460 1PH reversible motor this afternoon... After I was finished installing and wiring the motor I ran it to verify amperage and rotation.. Everything was fine.. I then realized that I forgot to ground the motor to the unit chassis (it has been a long week).. I removed call for fan and grabbed the ground wire to secure to chassis and noticed as I got it close to the chassis it would arc.. Voltage from motor ground wire/case to ground is around 130VAC.. Triple checked wiring and it is correct.. Did I get a motor that was not wound properly or are the wires possibly mislabeled? It's an AO Smith motor.. T1 - comes off L2 terminal block and T2 comes from NO contact on fan relay.. I'm confused..

  2. #2
    Join Date
    Jan 2013
    Location
    florida
    Posts
    783
    wow...be careful on that one...

  3. #3
    Join Date
    May 2004
    Location
    SE Pennsylvania
    Posts
    1,023
    Sounds like either a bad winding or one of the power leads is touching the body of the motor.

  4. #4
    If power is touching, it has to be internal..

  5. #5
    Join Date
    Aug 2013
    Location
    SC
    Posts
    115
    Megger it!

  6. #6
    Join Date
    Aug 2009
    Location
    Maine
    Posts
    3,714
    Are you absolutely sure that you don't have a 3 ph feed?
    Quote Originally Posted by obieone View Post
    Megger it!

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Comfortech Show Promo Image

Related Forums

Plumbing Talks | Contractor Magazine
Forums | Electrical Construction & Maintenance (EC&M) Magazine
Comfortech365 Virtual Event