Page 1 of 4 1234 LastLast
Results 1 to 13 of 45
  1. #1
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27

    Unhappy

    Hey guys I am having a problem getting gauges on this unit. This unit is in the celling and I can't get to it. The unit keeps shutting off. I have to keep hitting the compressor reset. The unit will cycle on a few time but then I will have to hit the reset again. I have a temp of 82deg entering the Condensor and has a 140Deg Leaving. The Entering pressure is 130psi and Leaveing at 100psi.
    Need you thoughts on what it could be. The unit was running fine. We cleaned strainer and the filters are good.

    Thanks,



    A newbie

  2. #2
    Join Date
    Sep 2006
    Posts
    31
    Was it the High Pressure Reset switch that you keep on resetting?

  3. #3
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27
    Yes it is

  4. #4
    Join Date
    Sep 2006
    Posts
    31
    Originally posted by storyusmc
    Yes it is
    Check the ff:
    Blockage in the condenser section
    Fan motor (it should be running)
    Suction pressure and temperature
    Discharge pressure and temperature
    Suction and discharge pressure switches settings

    What's the the refrigerant?

  5. #5
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27
    I can't get Suction and Discharge pressure or temp atm. I am working alone and the unit is in the ceiling. The compressor though is running hotter than normal. Way hotter. I even burned my hand on it. I know that it usually run about 140Deg but this feels much hotter that 140. If it's necessary, I will wait until tomorrow when someone is around to get the suction and Discharge for you. Right now I am just looking for a general assumption of it could be blown motor bad compressor cause that’s what I think it is but before I replace it and do those steps just wondering if that what it could be or did I miss something.

  6. #6
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27
    I found a cleaner who will make sure I don't fall off the latter. I will get the suctions and dischage temps and pressure.

  7. #7
    Join Date
    Sep 2006
    Posts
    31
    ok. Do the first 2 steps I mentioned above

  8. #8
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27
    Ok I have 63 Suction and a 235 Discharge pressure. Suction temp was 36deg and the Discharge temp was 105. Tomorrow when I have someone here, I would like to put the gauges on and leave them for about 1hr. Cause that’s when it seems to be shutting off. The only info I got on the until was, the design test pressure of High 300psi and Low 150psi.

  9. #9
    Join Date
    Sep 2006
    Posts
    31
    You should verify if the condenser fan motor is running and if the condenser is clean.

  10. #10
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27
    The Fan is running and the Condensor is clean.

  11. #11
    Join Date
    Sep 2006
    Posts
    31
    Check if the discharge service valve is backseated (open for discharge pressure to come out)

    Another thing. Your superheat should be 10 to 20 degrees.

    [Edited by The Saint on 09-12-2006 at 04:52 AM]

  12. #12
    Join Date
    Aug 2006
    Location
    NY NY
    Posts
    27
    There isn't a 3way valve. Just has Schrader valves. The superheat is fine. It cools the room down crazy fast but after about 1hr thats when I have to start hitting the reset. What is causing to do this?0.

  13. #13
    Join Date
    Sep 2006
    Posts
    31
    Try to remove some of the refrigerant. You might be overcharging the system. Your superheat is 0 degrees.

Page 1 of 4 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