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  1. #1
    danny x Guest
    When the Machine goes into harvest I get pressures that correspond to the book (170Head/80-85Suction) however, the ice will come free on the left hand side of the evaporator, and then melt out of the right side until it finally drops(it eventually locks out on long harvest). I used sanitizer but it made no difference. One thing I noticed was the discharge line would start out at 160 plus degrees, and then would be room temperature, but the pressure was still 80 to 85 lbs. I find it hard to be under charged being my pressures are so close, but could this be the case?

    On a side note, it is always the right hand side of the evaporator that gets "stuck"

    Dan

  2. #2
    Join Date
    Jan 2004
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    Earth
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    4,879
    Sounds like a classic case of evaporator grid separation. Shine a flashlight in the ice free grid where it sticks. I think you will find the grid separating from the evap plate. If so throw the machine away and buy a new one.
    A Diamond is just a piece of coal, that made good under pressure!

  3. #3
    Join Date
    Mar 2005
    Location
    burlington county n.j.
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    9,764
    make sure ice mold is not bent or scratched. let plate dry and see what it looks like. sanitizer will not remove mineral build up.

  4. #4
    Join Date
    Mar 2006
    Location
    wisconsin
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    1,633
    Ive heard of guys using the wrong cleaner and having some weird problems, but on one side, could it be a restriction, just guessing

  5. #5
    danny x Guest
    Originally posted by frozensolid
    Sounds like a classic case of evaporator grid separation. Shine a flashlight in the ice free grid where it sticks. I think you will find the grid separating from the evap plate. If so throw the machine away and buy a new one.

    It is a half dice machine, and some of the cross sections of the grid do move slightly(or do stick out of the plate slightly). Also, at one point in the grid it looks like someone grinded the cross section or it somehow got burnt or damaged, manager says no one torched it. I used Nu-Calgons Nickel-Safe Ice Machine Cleaner which meets Manitowoc’s specification #GES-6 and a soft brush. I had a feeling the machine was shot.

    On a side note, the machine is from 96. At what point do you tell your customer it has outlived its useful life and is not worth repairing?

    Thanks

    Dan

  6. #6
    Join Date
    Nov 2006
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    Southeastern Pa
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    Quote Originally Posted by danny x View Post
    On a side note, the machine is from 96. At what point do you tell your customer it has outlived its useful life and is not worth repairing?

    Thanks

    Dan
    This is that point.

    By the time you replace the evap and ice mold grid, you are well on your way to the price of a new machine.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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  7. #7
    Join Date
    Oct 2012
    Location
    Wisconsin
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    Quote Originally Posted by timebuilder View Post
    This is that point.

    By the time you replace the evap and ice mold grid, you are well on your way to the price of a new machine.
    I know what you mean. I just did an evap in a IB1024, under warranty. I think the evap was over $1000, plus it took me five hours to put it in.

  8. #8
    Join Date
    Nov 2006
    Location
    Southeastern Pa
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    Quote Originally Posted by Mike19 View Post
    I know what you mean. I just did an evap in a IB1024, under warranty. I think the evap was over $1000, plus it took me five hours to put it in.
    I'm afraid to ask you what Mani offered for warranty labor. From the lists I've seen for the QDUAL, it can't be much.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

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  9. #9
    Join Date
    Oct 2012
    Location
    Wisconsin
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    Quote Originally Posted by timebuilder View Post
    I'm afraid to ask you what Mani offered for warranty labor. From the lists I've seen for the QDUAL, it can't be much.
    I just went over, it took me 5, they said 2 - 4 1/2. I was lucky, the machine was accessable from three sides, it could have been worse and taken longer. I closed the two shutoff valves so I only had to recover the charge in the head.

  10. #10
    Join Date
    Feb 2006
    Location
    Atlanta,GA.
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    926
    if the grid is seperated you are at the point of telling the customer it has outlived its usefulness

  11. #11
    Join Date
    Dec 2004
    Location
    WI
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    312
    Manitowoc Ice machine have an average commercial life of 10 years. Yours looks like it is 10 years old. Time for a new one. For info call the factory tech surport.

  12. #12
    Originally posted by chillerout1
    if the grid is seperated you are at the point of telling the customer it has outlived its usefulness
    You call. We haul..

    ): ):

  13. #13

    Thumbs up

    Originally posted by frozensolid
    Sounds like a classic case of evaporator grid separation. Shine a flashlight in the ice free grid where it sticks. I think you will find the grid separating from the evap plate. If so throw the machine away and buy a new one.
    I'm betting you are correct on this. I've seen this a LOT.

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