Manitowoc Indigo ice thickness probe light on the control board.

[Jabarco]

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

[danbb]

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

[Jabarco]

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

[itsiceman]

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

[danbb]

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

[jonbailey19808]

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

[vzenuh]

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.

[codgy]

yet another reason to sell hoshi.

[danbb]

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

[J_Bridge]

On the indigo, use a 9/32 drill to set the thickness. That is all it needs to obtain a 1/8 bridge, There is also new books with the diagnostic info in them, last years books are trash. The new books were revised8/12. And do not expose the probe to water above 120 degrees, it will warp it and the microphone won't hear/sense the ice properly.

[codgy]

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.

[Jabarco]

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.

[jonbailey19808]

Well i can tell you the Manitowoc Company was established in Wisconsin in 1902 and they built the first Manitowoc Ice machine in 1964!