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  1. #1
    Join Date
    Mar 2002
    Posts
    186

    Confused How should we fix compressor burnout following installation of new evaporator coil?

    Evaporator coil leaked on 11 year old split a/c system. Matched air handler with new coil and dryer were installed and charged with R-22. Upon start up, compressor overheated and has failed.

    New evaporator coil is made for either R-410A or R-22. Should we flush system and replace with matched condensing unit going with R-410?

    How do we fix this?

  2. #2
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,600
    Don't flush a coil, you'll never get it all out. It isn't like a lineset with a single path. I'd stay R22.

  3. #3
    Join Date
    Oct 2002
    Posts
    1,394
    This will be the best opportunity to upgrade to 410a, but change evap.

  4. #4
    Join Date
    Jan 2009
    Location
    Keokuk, IA
    Posts
    5,520
    This is one of thsoe bad siutation for the contractor and the customer. The contractor didn't cause the compressor to fail, it was probably damaged by moisture contamination from the leak.

    If the customer can't afford it, replace the whole system and maybe they will cut them very good deal on the new coil and the labor portion for the coil.

    Otherwise, just change the compressor and consider changing to a R22 replacement... 406A I think it is?

  5. #5
    Join Date
    Mar 2002
    Posts
    186
    Thanks, but problem is the evaporator coil is brand new and full of R-22.

  6. #6
    Join Date
    Mar 2002
    Posts
    186
    Thanks Moto!

  7. #7
    Join Date
    Apr 2006
    Location
    Tyler, Tx
    Posts
    574
    You can try MO99 as well with a dry ship unit...be sure to apply the labels!!!
    Philippians 4:13
    I can do all things in him that strengthen me.
    Apostle Paul inspired by GOD.

  8. #8
    Join Date
    Dec 2002
    Location
    Houston,Tx.
    Posts
    16,121
    Personally is it were me as the contractor in this position, and this might not be the most ethical thing to do, but I would be taking back the "new" coil back and warranting it because it would have a leak, and get a new coil, and buy a 410A condenser, and go back and do what should have been done the first time.
    __________________________________________________ _______________________
    “Experience is a hard teacher because she gives the test first, the lesson afterwards". - Vernon Law

    "Never let success go to your head, and never let failure go to your heart". - Unknown

  9. #9
    Join Date
    Apr 2006
    Location
    Tyler, Tx
    Posts
    574
    Quote Originally Posted by Mr Bill View Post
    Personally is it were me as the contractor in this position, and this might not be the most ethical thing to do, but I would be taking back the "new" coil back and warranting it because it would have a leak, and get a new coil, and buy a 410A condenser, and go back and do what should have been done the first time.
    Ahh Mr Bill, you been around huh?
    Philippians 4:13
    I can do all things in him that strengthen me.
    Apostle Paul inspired by GOD.

  10. #10
    Join Date
    Jan 2004
    Location
    PA
    Posts
    68,776
    I'd blow out the coil with nitrogen. And then put a R410A TXV on it. And use it for R410A.
    Contractor locator map

    How-to-apply-for-Professional

    How many times must one fix something before it is fixed?

  11. #11
    Join Date
    Jul 2010
    Location
    nebraska
    Posts
    1,629
    Quote Originally Posted by beenthere View Post
    I'd blow out the coil with nitrogen. And then put a R410A TXV on it. And use it for R410A.
    Same here. It's not like the coil had mineral oil pumping through it for 10 years.

  12. #12
    Join Date
    May 2013
    Location
    Oklahoma
    Posts
    34
    This is the Ask Our Pro's forum, and only Pro members that have been vetted by the AOPC may post advise, commentary, or ask questions of the OP here.

    You can find the rules for posting and qualifications here.

    Further infractions may result in loss of posting privileges.
    Last edited by beenthere; 05-10-2013 at 06:35 AM. Reason: Non Pro * Member

  13. #13
    Join Date
    Jan 2005
    Location
    Emerald Coast
    Posts
    965
    Quote Originally Posted by martyinlincoln View Post
    Same here. It's not like the coil had mineral oil pumping through it for 10 years.
    .

    X3
    ..
    Do not attempt vast projects with
    half vast experience and ideas.
    ...

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