Page 3 of 4 FirstFirst 1234 LastLast
Results 27 to 39 of 49
  1. #27
    Join Date
    Apr 2012
    Location
    Louisiana
    Posts
    660
    Not saying this is it, but I've had two units do similar things with the fan blades in the wrong position on motor shaft. 1/2 an inch or more too low (or high though both of mine were too low) can make a difference. Check airflow with a piece of paper, move it over all fin surfaces, it should stick against coil. Any idea if the motors been changed before? Definitely seems like your having a heat rejection problem.

  2. #28
    Join Date
    Jun 2012
    Location
    Pittsburgh PA
    Posts
    57
    never been replaced but im wondering if the homeowner bent the blade cleaning out the unit

  3. #29
    Join Date
    Jun 2004
    Posts
    850
    Anyone!!!!!
    I wish I was there.
    Sometimes it's hard to troubleshoot over the forum.
    I'm sure someone will be here soon.
    To straighten out both of us.

    I can tell you this much.
    If u are checking ur high side on condenser port
    And it shows that high
    Ur condenser is not doing its job.
    The flash gas to ur liquid line is what's causing ur fluctuation.
    Not enough condenser,
    Not enough air flow,
    Go ahead replace the blade
    It needs to be replace anyway, since it's bent
    It will make bearing on motor go out.

    I'll step back and see what others say

  4. #30
    Join Date
    Apr 2012
    Location
    Louisiana
    Posts
    660
    Quote Originally Posted by Brad gall View Post
    never been replaced but im wondering if the homeowner bent the blade cleaning out the unit
    I think you could tell if it was bent enough to matter. Did you amp fan motor and compare to nameplate.

  5. #31
    Join Date
    Apr 2012
    Location
    Louisiana
    Posts
    660
    Quote Originally Posted by shaka View Post
    Anyone!!!!!
    I wish I was there.
    Sometimes it's hard to troubleshoot over the forum.
    I'm sure someone will be here soon.
    To straighten out both of us.

    I can tell you this much.
    If u are checking ur high side on condenser port
    And it shows that high
    Ur condenser is not doing its job.
    The flash gas to ur liquid line is what's causing ur fluctuation.
    Not enough condenser,
    Not enough air flow,
    Go ahead replace the blade
    It needs to be replace anyway, since it's bent
    It will make bearing on motor go out.

    I'll step back and see what others say
    I agree if it's bent replace blade. Go ahead and bring a motor with you too.

  6. #32
    Join Date
    Jun 2012
    Location
    Pittsburgh PA
    Posts
    57
    should the amp draw be half of the rla on one leg I think the rla was 1.2 & .6 on one wire

  7. #33
    Join Date
    Jan 2008
    Location
    In the work truck
    Posts
    3,000
    Ok I have a few questions..

    How was the unit performing prior to this year? Cool the house ok? Make set point and shut off? Did you ask the Homeowner these questions?

    Are the indoor and outdoor units a match? How old is this unit?

    Also when you evacuated the system are you using a micron gauge?
    Gotta have the right tool for the job!

    Where is all the stuff MADE IN THE USA?

    "Thats what we do Troy. Incredible, Invisible, Imbelivable things. We are an Unseen, Unknown, Unvincible fraternity of craftsman.."

  8. #34
    Join Date
    Jun 2012
    Location
    Pittsburgh PA
    Posts
    57
    ran fine 8 years, pumped down with micron guage. matched amana 2.5 ton

  9. #35
    Join Date
    Apr 2012
    Location
    Louisiana
    Posts
    660
    Quote Originally Posted by Brad gall View Post
    should the amp draw be half of the rla on one leg I think the rla was 1.2 & .6 on one wire
    Measured on the line wires amps should be near nameplate rating. Not half.
    Did you ever make it back to this job?

  10. #36
    Join Date
    Jun 2012
    Location
    Pittsburgh PA
    Posts
    57
    going over when I get a motor an blade just i ncase. It seems the condenseris not rejecting the heat an the condeser is clean for the amp draw to be that low???

  11. #37
    Join Date
    Jan 2012
    Location
    WEST COLUMBIA S.C.
    Posts
    278
    compressor may be getting to go.the cap u replaced single or dual

  12. #38
    Join Date
    Jun 2012
    Location
    Pittsburgh PA
    Posts
    57
    dual cap 35/5/440

  13. #39
    Join Date
    Jun 2012
    Location
    Pittsburgh PA
    Posts
    57
    35/5/440 dual cap

Page 3 of 4 FirstFirst 1234 LastLast

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