Question about Ice-O-Matic ICEU220HA Undercounter Ice Machine

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I have a iceu200ha1 and it is not makeing ice the pump is pumping water over the ice tray compressor is on then shuts of and goes into harvest mode.and is all water

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  • Joe Palazola Jan 05, 2011

    I dont think this small unit has a water curtain covering the ice making grid so you should be able to see a small plunger dead center in the middle of the grid. This is a harvest assist motor that pushes against the back of a completed sheet of ice to help get it moving. While the unit is in ice mode that plunger should be flush with the back of the plate. If it is sticking out at all or running in and out without a full sheet of ice formed you could have a list of possible problems. It should go in and out during harvest but not before. The plunger setting back in makes a switch and is what actually starts the unit back into a freeze cycle. So... Is the water at least geting cold? How long does it run before it goes into harvest? Is the plunger out or moving in and out before it goes into harvest?

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Posted on Jan 02, 2017

farfield
  • 462 Answers

SOURCE: Re-circulating pump will not shut off.

The bin has to reach the thermostat bulb before it can shut off. take s cube or two and rub it on the bulb. (the small wire looking thing on the side of the inside is the bulb) If everything shouts off then its working fine just needs to fill up, if not filling up - well that's another story. If you do this with 2 cubes and it doesn't shut off the thermostat is bad. Replace it and your problem is gone.
Hope this helps please rate me even if you read this more than 1st time please rate me accordingly and Good Luck.

Posted on Mar 12, 2009

  • 193 Answers

SOURCE: Ice machine not coming out of the harvest

look at harvest thermostat

Posted on Apr 24, 2010

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Have a scottsmanicemachine doesnt drop ice compressor on water on water runs on coils goes to harvest but makes no ice coil usualy have a ice buildup before it harves


The water runs over the evaporator coil(plate) until the ice gets thick enough, than when the ices touches a switch for the thickness you have it set for, it to go into harvest and the hot gas from the liquid line goes through the evaporator making the ice fall. If you are not making ice, it is the refrigeration system not working, so check the refrigerant, compressor etc like you would on any refrigerator or freezer

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Have a scottsmanc1448 ice machine shows codes 1 an an 2 longharvest cleaned all water sensors descaled machine works threw all cycles water flows over both curtain coils ...


ok, what you have not told me was the temp of the ice plate. If you have an inferred thermometer now is a good time to use it. what is the Temp of the plates or ice collection try. Ice will never collect if it is not below zero C. 32F my guess is it must be below 28F. you need some kind to thermometer.

Dec 09, 2014 | Kitchen Appliances - Others

1 Answer

I have a Scotsman CME 506 ice maker. After running a cleaning cycle it won't run. After resetting the freeze light blinks and nothing happens. The water inlet valve never opens (the sump is current


CM3 Operational Sequence.
From Off, push and release the freeze button.
1. If sump is full,water pump starts.If sump is not full,water valve opens to fill it.
2. Compressor starts when sump is full.Air cooled fan motor starts too.
3. water pump stops early in freeze cycle for 30 seconds.
4. Sump refills after pump starts.
5. In low ambient condition,fan motor may begin to cycle on and off.
6. Freeze continues until water level in sump drops to preset point. Exceptions: SCE275 must fill sump two more times.
7. Fan may shut off before the end of freeze.
8. Harvest begins. Hot gas valve opens,pump stops.
9. Pump restarts, inlet water valve opens to fill and overflow the reservoir.
10. Harvest continues for preset first cycle harvest time.
11. If bin is not full, cycle repeats ( compressor stays on). If bin is full, unit shuts off at the end of harvest.
OK with that out of the way unless you unplugged any wires cleaning the machine should not have caused any problems. First cut off water and pull water supply line from water inlet valve look in the end of valve there is a screen in there it could be stopped up. If the valve screen is not stopped up then put supply water line back on and turn water back on. power the CM3 controller off. push freeze button. now with a voltage meter check at the water inlet valve to make sure you are getting power to the valve.If you are then either valve is stopped up or valve is bad. If you are not getting power to valve then replace the CM3 controller now make sure the bin full light is not on because if it is this will not let controller go back to a freeze cycle.

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1 Answer

WHY scotsman iec machine shuts down on the refridgeration light ON CM3 CONT


Is the machine producing ice thick enough to come off the evaporator plate? the machine will try to harvest 3 times before it locks out on long harvest. Harvest cycle: The compressor and hot gas valve are both powered during the harvest cycle. The fan and pump are off at this time. The machine stays in the harvest cycle until the evaporator thermistor senses 52 DEG F. If the bin is not full, the unit goes into another freeze cycle. I would check the Thermistor

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1 Answer

Ice machince is going max freeze cycle shut down


1. Possible cause. Water leak. Check purge valve, water curtain, sump, sump hose.
2. Air filters clogged. Clean air filters.
3. Dirty condenser. Clean condenser.
4. Restricted location, intake air to hot. Have machine moved.
5. Ice thickness sensor dirty or disconnected. Check ice thickness sensor probe.
6. Water distributor dirty. Remove and clean water distributor.
7. Inlet water valve leaks through during freeze cycle. Check water inlet valve.
8. Connected to hot water. Check for bleed through from missing check valve in building water supply.
9. Incomplete harvest. Check harvest system.
10.High pressure cut out opened. Check fan motor pressure control, check fan motor, check controller using test mode.
11. Fan motor pressure control open. Check fan pressure control.
12. Fan motor not turning. Check fan motor, check fan blade,check controller using test mode.
13.Water pump not pumping. Check pump motor,check controller using test mode.
14. Pump hose disconnected. Check hose.
15. Compressor not operating. check compressor contactor, check controller using test mode.
Check compressor start components, check PTCR resistance and temperature, check compressor voltage, check compressor windings.
16. Low refrigerant charge. Add some refrigerant and restart unit. If cycle time imporves, look for a leak.
17. Hot gas valve leaks through during freeze. Check hot gas valve for hot outlet during freeze.
18. Thermostatic expansion valve bulb loose. Check bulb.
19. Thermostatic expansion valve producing very low or high superheat. Check evaporator superheat, Change TXV if incorrect.
20. Compressor inefficent. Check compressor amp draw, if low and all else is correcy, change compressor.

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1 Answer

Ice maker Manitowoc QD-0212A


This light is a harvest limit light. This light's primary function is to be on as water contacts the ice thickness probe during the freeze cycle, and remain on throughout the entire harvest cycle. The light will flicker as water splashes on the probe. The lights secondary function is to continuously flash when the ice machine is shut off on a safety limit, and to indicate which safety limit shut off the ice machine. Start up of machine after turned off. !. Before the ice machine starts, The water pump and water dump solenoid are energized for 45 seconds to purge old water from the water trough. This ensures that the ice making cycle starts with fresh water. The water fill valve energizes after 45 second water purge, and remains on until the water level probe is satisfied. 2. to pre-chill the evaporator, there is no water for the first 30 seconds of the freeze cycle. 3. The water pump starts after 30 seconds pre-chill. An even flow of water is directed across the evaporator and into each cube cell.

Jul 13, 2013 | Kitchen Appliances - Others

1 Answer

Unit makes ice,full evaporator,is very slow,maybe 45 mins. from harvest to harvest. Why so slow?


Possible causes are many
Things to check
  • If air cooled, is the condenser coil clean and is the condenser fan running when in ice production ? Is the area extremely hot where the ice machine is located? If water cooled, is there adequate water pressure and is the water regulating valve set properly?
  • When the system switch is in the off position is there any water running ( if so the inlet water valve may be stuck open)
  • When in ice production, is the small tube that feeds from the hot gas solenoid hot? This tube comes from a valve at the back of the unit and feeds over the compressor and into a tee near the insulated Tx valve. This line should be hot during harvest and cool shortly after harvest.
  • Has the float switch assembly been cleaned. this is a cylindrical unit beside the water pump,It can get plugged with minerals and not initiate harvest
  • The system may have a refrigerant charge problem (short) or the compressor may be weak, at which point diagnosis would need to be done by a refrigeration tech
Hope this helps

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seems that its low on water or float switch is bad. try to clean float

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U-Line's tech line is 1-800-2547. The compressor, condenser fan and circulation pump operating at the same time?

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