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  1. #14
    Join Date
    Aug 2018
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    Piedmont Triad, NC
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    Thread Starter
    Well, I appreciate the support guys. Turns out the compressor is shot as well. With no one open until Tuesday we didn’t have too many options so we lent her a portable ac for her living room/kitchen and a window unit for her bedroom. At least she’ll stay cool until next week. Meanwhile the calls are still rolling in so I’ve gotta get in gear.

  2. #15
    Join Date
    Dec 2010
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    WV
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    Quote Originally Posted by Achso017 View Post
    Meanwhile the calls are still rolling in so I’ve gotta get in gear.

    Glad I’m off this weekend.



    Sent from my iPhone using Tapatalk

  3. #16
    Join Date
    Jan 2010
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    Sea to Sky
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    Quote Originally Posted by SuperTech2010 View Post
    Glad I’m off this weekend.



    Sent from my iPhone using Tapatalk
    Me too

    Sent from my SM-N910W8 using Tapatalk

  4. #17
    Join Date
    Dec 2005
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    Thankfully I don't work on many heatpumps. I've never even changed a reversing valve. I have learned that it can be very hard to decipher between a bad Compressor and a bad reversing valve when the symptom is high suction and low head. There are a few tricks to help ensure the proper diagnosis. I've even heard some guys automatically replace both components to be sure. Was the TXV overfeeding or not opening properly? Either way it doesn't sound like fun. Like all of us, keep learning and trying.

  5. Likes Core_d liked this post
  6. #18
    Join Date
    Aug 2018
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    Piedmont Triad, NC
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    Thread Starter
    Yeah, I hate trying to determine if its a bad compressor or reversing valve. I always second guess myself to death until its up and running. This time it was a little easier though. I got a FLIR camera for my iPhone a few months ago and using it I could see some heat traveling into the suction lines of the reversing valve. Also, the big clue happened when I cycled it into heat mode. Sometimes that'll unstick the valve and it will run normally for a while. In this case the pressures on all three service ports dropped to a low of 25 psi before I jumped it back into cooling. The pressures were still dropping but I didnt want to see 0 or negative. I figured the only thing that would stop refrigerant from flowing from the discharge line into the system would be a RV stuck halfway. I tried it a few more times to make sure and it happened everytime.

    I know I've had worse days, and the physical conditions weren't that bad, but it was just the frustration of multiple problems cropping up coupled with my desire to make things right for this woman. I gotta say, its nice having this place to talk through these issues. Most people not in this line of work have no idea of the frustrations and demands that are part of it. It's funny when people are like: So what are your plans for "X" holiday? And I have no idea it's even a holiday. Or Fridays. Friday evenings are our busiest time. Most people are planning to go out and have fun. I'm planning to go out and work. But it pays the bills and I do love working with my hands and the sense of satisfaction I feel when I walk up to a broken machine and walk away from an operating one.

    On a side note, I have no idea how so many of you can work on large commercial systems like chillers and highly computerized/networked systems. I feel lost on residential units sometimes, nevermind something with multiple times the complexity and parts. Hats off to you.

  7. Likes Core_d liked this post
  8. #19
    Join Date
    Dec 2007
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    9,356
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    Quote Originally Posted by Achso017 View Post
    so we lent her a portable ac for her living room/kitchen and a window unit for her bedroom. At least she’ll stay cool until next week. .
    And there is the solution, back up heat or cool methods.

    Too may of us forget that the homeowner is responsible for their own situation. No different that their automobile or any other piece of equipment that is not serviced regularly/per mfr's instructions. Also, not having a back up plan is NOT my responsibility!!! Portable heat/cool units are available at the local retail store. Family/friends or a motel/hotel are available as well.

    I am not heartless, I will do what I can to get things fixed, but in the end I am only human. Most times these jobs do seem to come in at the end of the week, usually late and many times(for me at least) I am NOT the first one that has touched it this week!!!
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  9. Likes BALloyd liked this post
  10. #20
    Join Date
    Sep 2007
    Location
    State College, PA
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    2,927
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    I have never had to replace a reversing valve. But if I ever did, they are getting a new condensing unit. If the customer does not like that option, they can get someone else to do the job. Can't imagine the cost factor could be that much different.

    From what I have heard and seen on replacing a reversing valve, that is just not something I ever want to do.
    Can someone please explain to me -
    Why is there never enough time to do it right the first time, but plenty of time to do it twice?


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  11. #21
    Join Date
    Nov 2011
    Location
    St. Louis
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    Quote Originally Posted by pacnw View Post

    Too may of us forget that the homeowner is responsible for their own situation. No different that their automobile or any other piece of equipment that is not serviced regularly/per mfr's instructions. Also, not having a back up plan is NOT my responsibility!!! Portable heat/cool units are available at the local retail store. Family/friends or a motel/hotel are available as well.

    I am not heartless, I will do what I can to get things fixed, but in the end I am only human. Most times these jobs do seem to come in at the end of the week, usually late and many times(for me at least) I am NOT the first one that has touched it this week!!!
    ^^^^^

    Nor are we responsible for any other number of wrinkles that pop up these days. Like customers unwilling to take off work and dealing with issues immediately, scheduling calls after they get off in the late PM...and we have to end up ordering a part. Or equipment on the whole having more cheaply made moving parts, many of them proprietary.

    Let's not confuse integrity with responsibility is really all I'm saying...I realize I risk sounding jaded.
    Is the Religious Right to blame for Christianity's decline?

    They argued that, as the Religious Right became increasingly visible and militant, it became associated with Christianity itself. And if being a Christian meant being associated with the likes of Jerry Falwell, many people—especially political moderates and liberals—decided to simply stop identifying as Christians altogether.

    http://www.theamericanconservative.c...nitys-decline/

  12. #22
    Join Date
    Sep 2002
    Location
    Virginia
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    Ditto on the never replace a RV , tried it once and got the valve too hot and damaged it

    New units going in from now on ...

  13. #23
    Join Date
    Feb 2006
    Location
    Phoenix,AZ
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    3,675
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    Sounds like the OP had a restriction to begin with. I've never ever seen a reversing valve cause a unit to pump down.

  14. #24
    Join Date
    Dec 2007
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    9,356
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    Quote Originally Posted by KB Cool View Post
    Sounds like the OP had a restriction to begin with. I've never ever seen a reversing valve cause a unit to pump down.
    X2

    Not sure it can physically do this, it is just pipe, with a movable block to direct flow.
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  15. #25
    Join Date
    Dec 2007
    Posts
    9,356
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    Quote Originally Posted by hurtinhvac View Post
    ^^^^^

    Nor are we responsible for any other number of wrinkles that pop up these days. Like customers unwilling to take off work and dealing with issues immediately, scheduling calls after they get off in the late PM...and we have to end up ordering a part. Or equipment on the whole having more cheaply made moving parts, many of them proprietary.

    Let's not confuse integrity with responsibility is really all I'm saying...I realize I risk sounding jaded.
    Yes!!
    The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
    Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
    from an excerpt by Paul Jacob in Sun City, AZ

  16. #26
    Join Date
    Aug 2018
    Location
    Piedmont Triad, NC
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    665
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    Thread Starter
    Quote Originally Posted by KB Cool View Post
    Sounds like the OP had a restriction to begin with. I've never ever seen a reversing valve cause a unit to pump down.
    The only thing between the compressor outlet and the service port in heat mode is the muffler and the reversing valve. If it was the muffler I’d have had no pressure on either cool or heat. I haven’t seen a RV cause a pumpdown before either, but what else could it have been? I also saw hot discharge gas bleeding into the suction pipes through the FLIR camera.

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