Question about Ice-O-Matic ICEU220HA Undercounter Ice Machine

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Ice machine won't go into harvest just keeps building a slab of ice

Can't get the low pressure to adjust the right thickness it will just keep building ice

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Posted on Jan 02, 2017

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SOURCE: Ice machine not coming out of the harvest

look at harvest thermostat

Posted on Apr 24, 2010

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3 Answers

I have a ice-o-matic 400ha2 ice machine that is not making much ice and is to thick. the timer has been replaced,but no change


reduce the thickness thermostat that initiates the timer to minimum, then increase until good ice made.

Aug 29, 2014 | Kitchen Appliances - Others

1 Answer

Ice bridge to thick


there is a timer, adjusted by seconds, first make sure the condenser coil located under the ice bin is clean. the harvest is initiated by suction pressure once the pressure switch makes contact the time delay will time out initiating the harvest. you can fine tune the bridge with the time delay.

Jul 07, 2014 | Ice-O-Matic ICEU220HA Undercounter Ice...

1 Answer

Ice machine locks out.


After ice is produced (usually about 12-15 minutes) harvest is initiated and the ice should drop off of the plate and the curtain opens and closes in 90 seconds or so. If it takes three minutes and the curtain doesn't open and close the unit will go back into freeze. It will do this three times and then lock out.

First - does the unit make ice and start harvest in 12-15 minutes? Second - Is the ice thick enough? it should be one continuous slab with about 1/4" bridge across the front of the slab. IF both of these answers are yes then the plate is either bad or it needs cleaning. You need nickel safe ice machine cleaner and probably an experienced technician to determine if the plate is worth cleaning or is worn out.

Mar 04, 2014 | Manitowoc SY0454A S Series Ice Maker...

1 Answer

Scotsman CM3 does not harvest and does not refill


Remove the ice thickness probe that is hanging at the top of the evaporator plate and clean really good put it back push the freeze tab. If the ice is still getting to thick and not causing the machine to go into a harvest then replace the probe , make sure when you do this to set the thickness by using a 1/8 inch drill bit, lay the bit flat between the evaporator plate and the probe turn the 1/4 screw in or out to achieve the 1/8 inch. The probe is what sets the machine into a harvest, if the ice is not building up enough to cause the water to come into contact whit the probe long enough then it will not go into a harvest. if the ice is getting to thick and the water should be running over the probe it should have went into a harvest if not then the probe is not sensing it to tell the CM3 to go into a harvest.

Feb 11, 2014 | Scotsman Ice Maker CM3 30inW Cubed Ice...

1 Answer

Ice bridge too thick


look at the evap plate to see if there is a ice thickness probe, if there is it should have a screw 5/16 going through it that you can turn in or out you wont the thickness of a penny between the evaporator and the stainless sensor turn screw 1/8 of a turn at at a time let machine make a sheet of ice and keep making adjustments until you achieve the right thickness. Now if there is not a probe then the thickness is built in the run time of the control board. you can not adjust it. you need a tec to look at it to make sure your not having a harvest problem if it is not harvesting every time them ice will be to thick.

Jan 14, 2014 | Orien 44 Lb. Built-in Under Counter Clear...

1 Answer

Water keeps running on cm3


Replace the ice thickness sensor hanging on the front of the evaporator plate. when you turn the power off and back on factory default is to go to harvest first. if the ice thickness sensor dose not sense the ice is thick enough then it will not go into a harvest. before you replace the sensor take it loose from the evap plate and drop it into the water sump tray if it goes into a harvest then replace the board. if not then replace the sensor.

Nov 23, 2013 | Scotsman Ice Maker 600LB CM3 30inW...

1 Answer

SCOTSMAN MODEL #CME506WS1F


You need to descale the water circuit according to manufactures instructions. Scale build up keeps the ice from releasing during harvest cycle. If overall ice thickness is to thick, rotate the ice bridge thickness screw at the top of the platen countercloclwise about 1/8 of a turn max between freeze cycles until desired thickness obtained. If you do not know the correct descale solution alway use a nickel safe descaling solution.

Dec 03, 2012 | Scotsman Ice Maker WBin Flake Style water...

1 Answer

ICEU150 bridge thickness time delay to 1 second and the bridge thickness is still to thick


The bridge thickness on this model starts with the low pressure cut-in control that then in turn starts the timer. It sounds like you have either a bad low pressure control or one that has been tinkered with. To start with if you have a low pressure gauge that you trust what I do is take all of the time off of the timer and unplug the water pump. Then start the unit and watch the low pressure gauge to see at what pressure the harvest starts. an ICEU150 with R-404A should cut in at 44psi. Once that is set plug the water pump in again, put about 400 seconds on the timer, see how thick the ice is after 2 cycles and adjust as needed.

Jun 09, 2010 | Ice-O-Matic ICEU220HA Undercounter Ice...

1 Answer

ICE-O-MATIC ICEU220HA2 bridge too thick. Is the time delay relay the "finnish" relay that adjusts bridge thickness? If so, I'm not getting any change in thickness with time adjustment.If the time delay...


The bridge thickness on this model starts with the low pressure cut-in control that then in turn starts the timer. To start with if you have a low pressure gauge that you trust what I do is take all of the time off of the timer and unplug the water pump. Then start the unit and watch the low pressure gauge to see at what pressure the harvest starts. an ICEU220 with R-404A should cut in at 45psi. Once that is set plug the water pump in again, put about 400 seconds on the timer, see how thick the ice is after 2 cycles and adjust as needed.

Apr 06, 2010 | Ice-O-Matic ICEU220HA Undercounter Ice...

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