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Thread: Heat pump reset

  1. #27

    Heat pump reset

    Thanks for all the suggestions.

    To gsxrsquid and wrench tech, the unit makes the hissing noise while it is in heating mode, and the tech that was out mentioned that it was a scroll type compressor. When it goes into defrost (which I witnessed a couple of times) the hissing stops. Then when it went back into heating, the hiss came back. The defrost lasted a couple of minutes at most.

  2. #28
    Join Date
    Mar 2004
    Location
    Grottoes VA
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    5,856
    Where are you located? I am almost positive I know what the problem is. The Rheems of that era had a problem with the defrost stat. It would only be a problem when temps were very cold outside.
    Karst means cave. So, I search for caves.

  3. #29
    Join Date
    Jun 2007
    Location
    Piedmont Triad, NC
    Posts
    76
    You said the hissing stops when it goes into defrost. (cooling mode) There is the possibility that the reversing valve is sticking and not moving like it should. I have seen it happen and it does make it hiss. The tech can check the temperature difference across the reversing valve to see if it is leaking through. If there is no difference in temperature across the valve it's ok. If there is a differnce, the valve could be leaking through and therefore making a hiss when it does.

  4. #30

    Heat pump reset

    Quote Originally Posted by karsthuntr View Post
    Where are you located? I am almost positive I know what the problem is. The Rheems of that era had a problem with the defrost stat. It would only be a problem when temps were very cold outside.
    I love your area. Spent a week with friends at a resort between Harrisonburg and Elkton last summer. But unless you will be in Southern New Jersey sometime soon..............

    Would this arise after 11 years without a problem?

  5. #31
    Join Date
    Feb 2007
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    Quote Originally Posted by chuckweasel View Post
    Would this arise after 11 years without a problem?
    Yes it could. Like anything else mechanical, it can eventually wear out.

  6. #32
    Join Date
    Mar 2004
    Location
    Grottoes VA
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    5,856
    You mean Massanutten (Mass of nothing)

    Bobb hit it on the head. I am still replacing the bad defrost stats. Of course I make the unit better and more efficient with the part I replace it with.
    Karst means cave. So, I search for caves.

  7. #33
    Join Date
    Jun 2007
    Location
    Piedmont Triad, NC
    Posts
    76

    Wink

    Quote Originally Posted by karsthuntr View Post
    You mean Massanutten (Mass of nothing)

    Bobb hit it on the head. I am still replacing the bad defrost stats. Of course I make the unit better and more efficient with the part I replace it with.
    Maybe I need to buy my parts where you do. Sounds like you have the inside track on parts

  8. #34
    Join Date
    Mar 2004
    Location
    Grottoes VA
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    5,856
    Quote Originally Posted by wrench tech View Post
    Maybe I need to buy my parts where you do. Sounds like you have the inside track on parts
    No, not really, I use a common Rheem part, it just not the OEM part. I just use my knowledge to increase the performance of the unit.
    Karst means cave. So, I search for caves.

  9. #35
    Join Date
    Feb 2007
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    18951
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    Quote Originally Posted by karsthuntr View Post
    You mean Massanutten (Mass of nothing)

    Bobb hit it on the head. I am still replacing the bad defrost stats. Of course I make the unit better and more efficient with the part I replace it with.
    None of the new Rheems I've seen come with that pressure switch. Soooooo, they either found a high tech stealth way around it, or said screw it, they are more trouble then they're worth. Makes you wonder if you actually need them if the charge is right and everything is clean.

    How are we gonna make any money if all these companies start getting everything right?

  10. #36
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    Feb 2007
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    Some of the Rheem boards can be repaced with ICMs.

  11. #37
    Join Date
    May 2006
    Location
    Amory Mississippi
    Posts
    998
    I have been using all ICM boards on the rheems. They have worked fine

  12. #38
    Join Date
    Mar 2004
    Location
    Grottoes VA
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    5,856
    Quote Originally Posted by gsxrsquid View Post
    I have been using all ICM boards on the rheems. They have worked fine
    The board is not the problem.
    Karst means cave. So, I search for caves.

  13. #39
    Join Date
    May 2006
    Location
    Amory Mississippi
    Posts
    998
    someone close go fix this machine and tell us what was wrong. lololol

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