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  1. #1
    Join Date
    Jan 2003
    Posts
    24
    One of my tenants complained of no cool. I called Cox Heating & Air (Tampa, FL), and they found a leak in the condenser coil. On one corner the aluminum fins were competely melted off and only the copper tubing remained (about 6 visible runs). The tech said it was from dog urine. The tenant has three large male German Sheppards.

    The tenant claims it was like that before he moved in, and he felt it was from a weed eater - though there was no damage to the wire screen protecting the coil.

    I have no reason to distrust the tech. I told the tenant that I would not bill him for any repairs (estimate was right around XXXXXXX to replace the coil) since he's been such a good tenant. I did want to make sure the dogs wouldn't have access to the repaired unit though.

    It's a 2-ton Heil, model # HAC 030AKA4, SN 1022622696. It's about 3-4 years old (10 seer), and other than this, has had no problems. It only cost me $XXX to put the whole system in, so I'm struggling to understand why the coil alone would be this expensive.

    So here are my questions:

    1) Does dog piss really kill coils?
    2) I wouldn't expect it, but is this type of damage typically covered under warranty?
    3) Does the price quoted seem reasonable?


    Thanks to all...



    >>> Edit: No Pricing. Please review the site rules before further posting. <<<


    [Edited by jrbenny on 08-30-2006 at 11:23 AM]

  2. #2
    Join Date
    Jul 2006
    Posts
    1,091
    1) Does dog piss really kill coils?
    2) I wouldn't expect it, but is this type of damage typically covered under warranty?
    3) Does the price quoted seem reasonable?
    1) yes
    2) no, corrosion not covered
    3) no pricing on this site



  3. #3
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,176
    Below is a picture of Sis's unit. I found this damage earlier in the year when I was cleaning it. Some fackin' mutt was able to get his whiz UNDER the cabinet and it ate up the coil there. I'm not going to do anything, it doesn't do enough damage to affect her cooling that I find.


  4. #4
    Join Date
    Jan 2003
    Posts
    24
    Thanks Rick, I was hoping point 3 would squeak by unnoticed...

    Appreciate the response.

    >>>It never squeaks by...please don't do it again. Benny<<<

    [Edited by jrbenny on 08-30-2006 at 11:24 AM]

  5. #5
    Join Date
    Jan 2003
    Posts
    24
    Mine looks the same - probably a bit more extreme, but samve visible coil. He found the leak on the coil right where the ALU is missing. So piss kills both aluminum and copper, I guess... Damn strong stuff.

  6. #6
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,176
    Usually doesn't eat the copper. But I guess it could.

  7. #7
    Join Date
    Mar 2005
    Location
    burlington county n.j.
    Posts
    9,743
    with the newer coils getting thinner for higher efficiency i think we will see a lot more peed thru copper coils.

  8. #8
    Join Date
    Feb 2004
    Location
    Ontario
    Posts
    700
    Jeez Baldie, at first I thought you'd taken out the compressor to clean the unit! Very thorough...

    Dog piss will definately rot a coil.

    Another thing that'll rot out coils is the exhaust from a power vented water heater too close to the coil. Flue products are slightly acidic. My brother's system was installed like that and I was surprised to see the coil damage, although it also doesn't appear to be affecting the operation too much. 10 yr old unit. I put a 45 degree elbow on the vent to direct the exhaust away.
    Question authority!

  9. #9
    Join Date
    Apr 2002
    Posts
    1,606

    Talking

    Loonie Im sure this will help. After further review of your pic I have determined that your fackin mutt was most likely a rightlegged hike pisser.
    Now start scowering the neighborhood!
    "The Bitterness of poor quality remains long after the sweetness of low price is forgotten"

  10. #10
    Join Date
    Oct 2004
    Posts
    3,400
    Originally posted by BaldLoonie
    Usually doesn't eat the copper. But I guess it could.
    I would think that bare copper, even if not corroded by urine, would need the support of the fins to prevent a vibration leak.


  11. #11
    Join Date
    Apr 2002
    Posts
    1,606
    Wild Leg one might think that. I have a stingy customer with an old Whirlpool Condenser with a hole in the fins the size of a basketball from their doberman...been that way over 10 yrs now and the thing still doesn't leak.

    ...thinking strange that I have to chase leaks in newer equipment that didn't get wissed on.
    "The Bitterness of poor quality remains long after the sweetness of low price is forgotten"

  12. #12
    Join Date
    May 2000
    Location
    Indianapolis, IN, USA
    Posts
    34,176
    Right hand ya say huh. That will narrow it down. Sis was after the neighbor's 2 kick-mes until the nieces point out they was girl doggys.

  13. #13
    Join Date
    Jan 2003
    Posts
    24
    Hey, some girl dogs do weird things - don't write them off. Mine used to hump stuffed animals like a male dog... Quite entertaining if not so completely embarrassing!

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