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  1. #1
    Join Date
    Apr 2001
    Posts
    669

    Manitowoc Indigo ice thickness probe light on the control board.

    I ran into my first Indigo (M#IY0606A) ice machine service call and I can't find the answer to my question regarding the ITP (Ice Thickness Probe) light on the control board. We know that on the Q & S models that the ITP will make the red light (Harvest light) flicker whenever water touches the ITP and it will initiate the harvest cycle when the harvest light stays on for 10 consecutive seconds. However, that is not what the Indigo ice machine control board’s ITP light does. My questions, which I can’t find in the 270 page Technician's Manual is: When should the ITP light on the control board be on, when should it be off and should it flicker when water splashes on to it? Thanks for any info regarding how the ITP light on the control board works.

    Jabs

  2. #2
    Join Date
    Jun 2012
    Posts
    116
    I don't think the indigo's will even have an ITP light. Go to the main menu, go to service, and i believe you can see if it detects ice or not by looking in the sensor inputs section. Otherwise, I believe you can see numbers for 70 and 90hz, which should change if you move the probe, but I don't know what they should be or anything like that. The indigo units use a sonar probe, so I just use the menu. I don't even look at the control board. I'm sure Jon Bailey can enlighten us more on the subject though

  3. #3
    Join Date
    Apr 2001
    Posts
    669
    Quote Originally Posted by danbb View Post
    I don't think the indigo's will even have an ITP light. Go to the main menu, go to service, and i believe you can see if it detects ice or not by looking in the sensor inputs section. Otherwise, I believe you can see numbers for 70 and 90hz, which should change if you move the probe, but I don't know what they should be or anything like that. The indigo units use a sonar probe, so I just use the menu. I don't even look at the control board. I'm sure Jon Bailey can enlighten us more on the subject though
    Thanks for your reply danbb,
    I think you've got me moving in the right direction. There is an ITP light on the control board but I’m certain it does not react to water splashing on the ITP. However, I think the info you are referring to is on page 82 of the Technician’s Handbook and now you've got me moving in the right direction. I will go back and check the 'Real Time Data". Thanks again for your reply.

    Techinician's Handbook: http://manitowocice.com/docs/uploade...ech_STH025.pdf

  4. #4
    Join Date
    Sep 2011
    Location
    Fayetteville, NC
    Posts
    130
    keep your flash drive handy and keep in on your keychain with updated software for the indi. it will save you a return visit from when you call tech support and they tell you to update the software.

  5. #5
    Join Date
    Dec 2000
    Location
    Flat Rock, NC
    Posts
    463
    yet another reason to sell hoshi.

  6. #6
    Join Date
    Jun 2012
    Posts
    116
    Until you have to clean and service the ones you sold, I hate working on Hoshis. The only machine that you can trash the evaporator by one freeze-up

  7. #7
    Join Date
    Mar 2007
    Location
    wedged in freezer shelf
    Posts
    6,969
    Quote Originally Posted by Jabarco View Post
    Thanks for your reply danbb,
    I think you've got me moving in the right direction. There is an ITP light on the control board but I’m certain it does not react to water splashing on the ITP. However, I think the info you are referring to is on page 82 of the Technician’s Handbook and now you've got me moving in the right direction. I will go back and check the 'Real Time Data". Thanks again for your reply.

    Techinician's Handbook: http://manitowocice.com/docs/uploade...ech_STH025.pdf
    Its a bear to set up like you are used to. If you watch the real time date there is no warning or guessing like you are used to. The values run in a close range and only when ice contacts the tit on the sensor the number spike and immediately goes into harvest. Also you cant be making adjustments to the sensor while the board is setting thresholds or you'll be there all day
    “If You Can Dodge A Wrench You Can Dodge A Ball”

  8. #8
    Join Date
    Jun 2012
    Posts
    116
    Quote Originally Posted by itsiceman View Post
    Its a bear to set up like you are used to. If you watch the real time date there is no warning or guessing like you are used to. The values run in a close range and only when ice contacts the tit on the sensor the number spike and immediately goes into harvest. Also you cant be making adjustments to the sensor while the board is setting thresholds or you'll be there all day
    Yep, as soon as the status changes from no to yes for detecting ice, the machine kicks into harvest. No 10+ second warning, but they seem to be set pretty accurately at the factory

  9. #9
    Join Date
    Dec 2004
    Location
    WI
    Posts
    312
    OK i am not going to give you a textbook reply as you can read that in a book.

    It can be confusing as it has changed from the S,Q,J,B series.

    Basically it does have an ITP light but it does not work the same as the others. As soon as it goes into harvest the ITP light will stay on, then after harvest the ITP light will stay on for 6 mins solid in freeze while it is setting its thresholds. Just as stated you do not want to touch it in this 6 min period.

    A good way i use it is when the itp on i do not touch it.

    To read it you need to go
    menu
    service
    Real time data
    time & Temp

    scroll down until you see 100hz & 120Hz range. This will give you a db reading next to it. Scratch the back pointy probe part and the numbers should go up.

    Sorry i didnt see this until late
    The postings on this site are my own and don't necessarily represent The Manitowoc Company's positions, strategies, or opinions.

  10. #10
    Join Date
    Dec 2000
    Location
    Flat Rock, NC
    Posts
    463
    i've sold and serviced Hoshis sent they came to the U.S. and only have a dozen or so that aren't still in service. Can't say the same for Ice-o-matic or mani.

  11. #11
    Join Date
    Apr 2001
    Posts
    669
    I can't tell you who I believe makes the best ice machine because the none of the manufactures will pay me to say. However, I can tell you that Hoshizaki America was established in Los Angeles, California... back in 1981.

  12. #12
    Join Date
    Dec 2004
    Location
    WI
    Posts
    312
    Well i can tell you the Manitowoc Company was established in Wisconsin in 1902 and they built the first Manitowoc Ice machine in 1964!
    The postings on this site are my own and don't necessarily represent The Manitowoc Company's positions, strategies, or opinions.

  13. #13
    Join Date
    May 2011
    Posts
    54
    Hoshizakis, "the ice dragons" / or Cadillac of the ice machine world. Well I guess it more lack of competition than anything. Yeah ok they take a while to clean but they are not even close to as touchy and apt to break down on the weekends than scotsman iceomatic Manitowoc etc. Plain and simple. They may take awhile to drop a batch but when the ice starts dropping its like it never ends. Bigger batches=longer freeze cycle=less cycles per full cycle=less chance of something not operating correctly. They are simple and it don't try to use all sorts of complicated sensors that obviously are gonna screw up with the water quality of all the machines out there. Just make sure you carry a few bin tstats, and a float switch and a control board and you're probably gonna get it up in running in a few minutes.
    Yeah separated plates are a problem caused by LOM but hey they still kick out a good amount of ice in most cases that you will get by, and hopefully. Or you can buy a few Manitowoc and tell the customer to buy two so when there touchy ice thickness sensor needs a few trips from a service company to correctly set. Yeah I'm obviously being a drama queen but it fun to pick on ice machines cause I hate watching them make ice unless the waitresses are interested. haha

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