Troubleshoot Manitowoc Ice Machine February 09 2014, 171 Comments

Hello, I have a Manatowac qy0804a. When I power it on the first cycle always works perfectly, sometimes I get 2 or 3 more good cycles. After a few good cycles it no longer gets water, the evaporator freezes up (just condensation) and eventually it hits limit and shuts down. Then it will restart and the above happens all over again. The water sensor, ice thickness sensor, and water valve are all new and appear to be working properly. Any suggestions greatly appreciated.

I have a Manitowoc series 150 when I plug it in it starts working but when the compressor kicks on the pump stops working I can unplug it and plug it back in and the same thing happens again

We have a Manitowoc Ice machine that makes ice but runs constantly. The ice is soft and wet. Any ideas of what may be wrong?

I have a Manitowoc Ice Machine Model #QY0454A. I have cleaned the machine with nickel safe cleaner. When I start making Ice it will make one or two batches. Drop the ice in the bin then continue to cycle. I will not make anymore ice. Any suggestions?

I have the NEO ice machine and the reservoir fills up with water, the fan kicks on, and I believe the compressor is kicking on as well, but that is where it stops. The water never pumps out above the evaporator. What would cause this? is this a bad or dirty float switch?

Manitowoc qy0274A After cleaning and sanitizing the ice maker red light [harvest light keeps blinking when in freeze cycle.
Could you give me any helpful hints?

Thank you
Christ lucido

my home model SMS050A002 is leaking /spraying from the filter ….it seems to latch in and then release, leaking all over the floor. I have inserted to properly, push and twist. Now I have turned it off out of frustration, and wondering if there is a trick? please lmk the proper filter and exactly how to insert.

Manitowoc SY0604A starts running water, compressor comes on, and after 30 seconds or so, the whole machine powers off. About 5 minutes later it comes back on and does the whole process again.

Any help would be appreciated.

ice maker model number s570 door does not stay up when opened. Did kitchen aides loose a part off this machine?

I have a man s400, it is making good ice, but after the harvest, it would shut off momentarily, and then everything would turn back on and start making ice again. now the fan does not turn on, if i unplug and plug right back in, everything works normally. why is my fan not coming back on by itself?

i have a manitwoc spa 310 ice ice dispenser ,and not dispensing ice. the auger will turn when its empty but when there is ice in it it wont turn .i have replaced the servend motor and still does that .the pin is installed properly . i dont see any other parts in the dispenser besides a timer ,it tested good with pins removed ,but doesnt seem to turn every so many hours or minuites. any suggestions .thanks

I have a Manitowoc ice maker qm45a it’s not getting water through to make ice the compressor kicks on but clicks back off. It runs fine on wash cycle and water flows through the ice mold fine their are No lights on the board but a green light.What could be causing this problem? And is there a,water filter on this machine if so where would it be? Thank you

I have a manitowoc neo undercounted ice machine that makes ice but will not release into the bin which in turn makes the service icon light up. Your thoughts

It is going into the water assisted harvest for an extended period of time at every single harvest . At first it was showing safety limit 1. Service light was on continuously at first. Now Service light 1 and 2 are on and flashing,

Thank you
Teresa

I have a manitwoc UD1040A Nero

It is going into the water assisted harvest for an extended period of time at every single harvest . At first it was showing safety limit 1. Service light one was on continuously at first also. After thoroughly cleaning the ice machine just continuously goes into water assist harvest and not making very much ice. This ice machine is only a year old.

Thank you
Teresa

manitowac ice machine makes 1 cycle of ice.then just runs water constantly melting what ice is in bin? have replaced water prob still over flowing water

why do industrial ice machines suck so much

we have a mantiwoc model BD0322A it will dump ice then cut off will not start back up we cut it off and on starts back again cycle thru making ice then cut back off again red light starts blinking next to the green light

What should the R12 pressure be at start up of a H002020A

What should the R12 pressure be at start up of a H0020A

I have an Manitowoc sd0602a ice machine that will not fill with water.the left bin light is the only light on.what could be the problem?

My NEO undercounter Ice Machine just started making thick ice cubes.

The cubes in the tray are ok but the back part of the ice cubes that normally break when they fall in the bin are so thick that they do not break when they fall.

It just started doing this and I put a leveler on it and all is level. I cleaned the machine and still thick ice cubes/

Is there sometihng I can do?

I just paid $385.00 for a technician do look at it and add a water fill valve that did not solve the problem..

HELP

I have a manitowoc machine and after starting the water trough fills with slushie ice then the machine will shut down. can anyone tell me why if forms slushie ice in the trough.

Hey Lynn. I have a model# QD0212A Serial# 3100017453 manitowoc ice maker it starts the cycle but drains water before it starts freezing. I’ve run cleaning cycle 2 times and still does the same. Do you have an idea what might be the problem. Thanks

Hey Lynn. I have a model# QD0212A Serial# 3100017453 ice maker it starts the cycle but drains water before it starts freezing. I’ve run cleaning cycle 2 times and still does the same. Do you have an idea what might be the problem. Thanks.

I have an indigo it turns on water runs fills the trough
The water stops then gets sucked up out of the water trough freezes but no water what should I do

My ice machine blew a fuse. Got a new one and put in. It will run on clean cycle but nothing when on ice cycle. Any suggestions. On clean cycle water runs trough everything. But it doesn’t run anything on ice

Ice machine is not making ice. Starts and then water runs out the back pipe

I have a manitowoc QD0452A it runs for a bit and then trips off. Any ideas

My ice machine stopped working. It seems there’s no water in the tray. I put water in the tray and it started right up. Water valve?

I am working on a manitowoc ice machine BY0204A. As far as i have been told it stopped making ice and it has not been ran in at least a few months or more. As of last night i had gotten it up and running and producing ice. It never had any issues as far as its sequence of operation. Everything has always started and stopped as it is supposed to. This morning i went to just basically finish it up checkingits charge and other little things since it had been such a hassle getting it up and running again. Someone had opened it up and turned it on…now the water pump will not shut off at all. It just runs contantly. It even stays on if you turn the machines switch to off. The only way it stops is if you disconnect it. Any ideas as to what can be causing this. Everything else is functioning properly.

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My ice machine fan keeps changing speeds. Mostly slow then kicking up high for just a few seconds and back down. It’s not producing much. I’m wondering if it’s the fan, whatever controls the fan speed, or something I haven’t thought of. Any thoughts? Thank you.

I’ve got a Kenmore Coldspot icemaker that has recently started making quite a bit of noise during ice production. I’ve run the nickel safe cleaning solution thru a few times in a row to try and get any of the buildup off as well as manually scrubbing the parts I could access by hand etc.(I took the pump out and manually cleaned it as well as possible and also gently scrubbed the cutting grid) Generally after turning off the machine for a few hours and then restarting the machine operates quietly but after say 4 hours or so of operation it starts making the noises again. (the noise sounds like a chugging or marching every second or so) It still produces ice but I’m afraid that it may be putting stress on the critical components if the problem isnt resolved. The first few batches of ice are also clear but then over time (probably when it starts chugging again) the ice gets cloudy. Do you have any insight as to what direction I should go with this?

Im working on a m# iyo524a-161
Ive got 2 blinking lights display,micro can anyone tell me what that might be to correct

I have a qdo452a and it’s not making ice the binned will overflow and never make wonder if the board is going out

i have a model BDO252A it starts and runs a few minutes the the fan cut off and on help

My Manitowoc QM45 is not making ice – water valve is leaking even when float is in off position…could this be the problem causing no ice?

My Manitowoc QM45 is not making ice – water valve is leaking even when float is in off position…could this be the problem causing no ice?

I recently bought a used Manitowoc QD1002A Ice Machine, Installed it per the manual, started it up, and it made ice , filled up the bin with no problem. Now it will not freeze any water going over the evaporator. and eventually cuts off. Ive checked the magnet on the curtain and the light goes on and off when I open and close it. Also, if I flip the toggle switch off and back to Ice , the bottom light flashes one time on the control board. Ive checked everything that I can think of, any suggestions?

Iy0454a161 manitowoc no voltage to water valve . I am at bad board

I have a GYO214A Manitowic Under the Counter Ice Maker. Sometimes it stops working. What happens is that it runs and everything appears to be working fine. Water runs across the ice maker, ice starts to form and then the whole thing just shuts off. If I flip the ice thickness probe and the damper to make it think it dropped the ice, it will kick back on again and run for a short time then shut off again. When I first come in in the morning and it’s not working, I turn the switch to off and then on and it will start up. At this point it will only run about 15 seconds and shut off. But if I flip those things and it starts back up, it will run about 5 minutes each time I get it going again. Everything seems to be working properly, it just doesn’t run long enough to make ice. I haven’t figured out what triggers it to start working again, but when it does it will run for a week and up to a couple months before it happens again.

the clean cycle button is lit and will not go out..
machine starts to make ice if i power it down then stops again

325w Has not run for 2 years. Very low hour unit, did clean cycle. It started fine. I stopped it for a few minutes to service a PVC leak on the back and now it won’t re start. It will clean its self all day long all else looks well.

I have a manatowoc, not getting water supply into machine, every thing else working fine just cant get water to intake

i got manitowoc sy0424A ice marker. The fan is still running when it harvests. i have other same mode machine. the fan is stop running when it harvests each time(normal), it looks like the compressor is too hot, What wrong with it?

We have a Manitowoc ice dispenser model # IY0455W-161, it ran good for about a month, now its down, it goes to “Making Ice” and runs water, then switches to “Delay” and starts a 60 minute timer, and says “HPC Active”. Any idea what this error sign means ?

Please l have Manitowoc ice machine model B1800 series. Since l bought it in 1997 l havent used it but now lm ready
but affried if it would work.what should l do not to damage itThanks

Hi I have a qy0214a
I feel the back getting cold but the water just keeps on flowing constantly and it does not produce ice

When checking a comp. Have been told to disconnect the water pump and watch the pressures. What should they do when you do that?

new manitowac ice machine, bin after a few days is filled with 4-5 gallons of water.
drain is connected correct with the vent. no water is splashing over inside all is cleaned.
why there is no drain inside the bin is just crazy ! !

The trough is overflowing making the water that overflows to melt the ice in the ice bin. I know there is no problem with the water inlet valve, but I am not sure if there is a problem with the control board. How can I test the control board? Also, how can i diagnose this problem? Any suggestions would be appreciated

I have just purchased a Manitowoc Ice cuber from an auction and I will need to remove the cuber from the ice bin to transport, will this be difficult to do?

Hello
I have a Manitowoc QM30 ice machine in my corporate office kitchen. It is producing large thick blocks of ice. Since yesterday, it is no longer separating into individual ice cubes. Can you please give me an idea of what can be done to correct this?

I have a Manitowoc QM30 it has been working fine for the 3 years I have had it. All of a sudden it stopped making ice completely. No ice forms on the evaporator, and it does not feel cold at all, otherwise it seems to be operating normally. I have cleaned and sanitized the machine according to the instructions which did not solve the problem. I do not see anything on the technical document that addresses this problem. Any idea how to troubleshoot this problem?
Thanks
Bob M

I have a Manitowoc UY190A undercounter cuber. The problem it has is the ice thickness is not consistent. Many times it comes out fine, but we are also getting some that are over 1/2 inch thick and I can’t figure out why. I have tried to adjust the thickness but the result is the same at all three adjustment points. Any ideas would be greatly appreciated.

I have Ice machine here model# SD0452A when I turn on the power always basted the fuse, I try so many times but always broke the fuse, I already hang up the supply from the motor fan and compressor the I try to turn on again but fuse busted again? where can I find the shorted of this item?
please help thanks,

Our Manitowic ice machine will not turn back on. Neither the power button or the clean button seem to do anything. the rest of the buttons for the LCD display seem to work just fine, but I can’t turn the thing on again. Help?

Hi,
I’d love to have an opinion on a Manitowoc ice maker if you would please. I have a QM30A at my church. Recently we notice that the water was not shutting off, presumably while filling for a load of ice. It was still making ice, just would not stop the water running. Is this unit worth fixing? Should I use a repair tech to fix it? Or, is it a dirty float or something that could be cleaned? Or, could I order a replacement part that could fix the problem. Thanks for any answer you can give for my problem.

Sincerely, Doug Fentiman

I have a mode Id0302A-161 IT BUZZES WHEN IT HARVESTS
WE HAD SOME POWER SURGES THIS SUMMER

Hello I have a qd0452 model. The evaporator plate only makes ice in the lower half of the plate. I was wondering if you could help me with the troubleshooting.

Installed a SM50A after a year stored, problem is too much water comes out of the nozzles and takes too long to make ice. I have checked the cap and insert and they look fine. Dont really know how much water is supposed to be sprayed. What can be the problem?

@Gregg, I’ll be happy to help. However, I need more information in regards to what you mean by ‘shutting down’. Is it going off on a safety limit, is it powering down completely, does the machine think it’s full? When it quits making ice, are there any lights on the control board? If there are, what are they and are they flashing? Typically the flashing lights will indicate a safety limit was met, helping us diagnose what the problem might be.

@JDM, have you thoroughly cleaned the machine with metal safe cleaner? Stuck ice is typically caused by a dirty evaporator, scale build up cannot be seen while it’s wet and must be dried out for inspection. We recommend regular cleanings, more frequently is bad water areas.

Next, check to make sure the evaporator is not pitting or discolored, this could be a sign that the evaporator plating is bad and needs replaced.

I have a SM50 that does not drop the ice consistently. A few cubes will drop but the majority remain and it begins to form a block. I need to power it off to allow it drop. Any help is appreciated.

My Q280 Manitowoc ice machine will make a couple of cycles of ice then stop.
If I turn it off or to clean then turn it on it will work for a few more times but them stop again.

Can you help?

Thanks,

Gregg

@Steve, make sure the spray bar didn’t come loose during shipping. The SM50 uses a water assist harvest, so if it’s came lose and pointing too far forward, this would explain the problems you describe.

@Ivan, I’d like to help more. What is the model number of your ice machine?

@Greg, make sure you have the filter securely in place. If it’s not turned and ‘locked’ into position the machine will bypass. Also, it’s not recommended to run ice machines on well water, it will certainly struggle to work consistently without cleaning all the time.

Recently started up my sm50 out of a three year storage and seemed to work fine but appears inlet water is bypassing the new filter that was installed before restart. Seeing iron stains as the well water has a fairly high iron concentration. Removed the new filter (k00374) and is dry as a bone without any evidence water is cycling through. Any ideas why the filter is being bypassed????

ice maker works has been cleaned but water keeps running when ice dumps

Hello,
I just purchased and installed the SM50A ice machine, when I turned it on it made two trays of ice fine but no more. The next tray failed to harvest and there is a lot of ice build up on it,
Also there seems to be a lot of water spray out the curtain in front. I removed the stay novels to be sure all is lined up and clear but have the same issue still not sure what to do next before calling them any advice would be appreciated

my ice machine model #BD0152A the machine comes on but no water to the ice maker and the water pump does not come on

I have a Manitowac BD0152A that runs normally during the clean cycle. When I switch it to ice mode, it does the initial water dump, but the pump does not run to flow water over freeze plate. Any help would be great.

Cory

Manitowoc Neo Model #: UY0190A

Machine has been working great for almost two years (light use in a church). However, after last routine maintenance (every 6 months with Manitowoc cleaner/sanitizer), machine will not continually make ice. Machine is plugged in, one cycle completes and then it stops. Touch pad is non-responsive until I cycle power using plug. Please help.

I have an under the counter(5 yrs old?) Manitowoc UY130 that is acting up. It’s been cleaned and sanitized and has a new water filter.After switching the machine on, 2-4 seconds later the compressor kicks in. Within another 5-10 seconds the pump starts and water flows over the evaporator to begin making ice. The machine runs for 1-2 minutes then shuts off. I can restart the machine and it repeats the same problem. I took the front cover off to check the coil for dirt but it was fine. I blew it out with compressed air anyway. Any ideas or suggestions??

Charles

I have a Manitowic 2500 air cooled machine
as long as its any where between 60 and 70 degrees the machine works great
any warmer and it keeps shutting down and I have to turn it off and then back on
any idea?

Hi I have a manitoc SY0604A, it seems to be freezing odd shape cubes also the bottom half is on giant thick ice sheet while the top is not doing any ice. plus it runs all day with no significant amount of ice. the machine supposed to do about 600 pounds a day. Please help

@mitch, the probes on the Indigo can be damaged. I would recommend replacement of the ice thickness control to see if that fixes your problem. There is a number of tests that you can perform on the machine, but in my experience, the probe is one of the first pieces to be replaced on the Indigo. You can also contact Kitchen Care for more assistance and help in further diagnosing the more technical Indigo cubers.

Lynn I have a mod # IY0304A-161 ice machine it initialy gave us too long of freeze and/or too long of havest cycles leaving us wih either no ice or a solid block incasing the thickness control. we removed the unit brought it down to the shop now it goes in to the safe mode but doesn’t kick out an error code. at first we thought it was recycling the condensor heat from the unit of the other pop machine but the shop is a constant 68 deg.

@lynn thanks for the help…had someone come in to help with the bin switch but it was actually the plastic face had a crack in it and that is why the magnet was not matching up with the bin switch and it was turning itself off…thanks again

@Greg, if there are literally NO lights on the board when you come in(bin switch light, harvest light …), then it’s shut off on a high limit. This is typically caused by getting too hot. Is there something being shut off at night that would cause this machine to over heat?

@lynn, we have only noticed it when I go in in the morning and no there are no lights on the control board when I look. when I go in is when I fill all the bins and notice that it does not start making more ice. so that’s when I run it through a clean cycle and then it turns back on. then when we closing, the ice bin is usually still running. then come in in the morning and the ice bin is full but all lights are off. so you are thinking we will need is a new bin switch.

@Greg, When you check on it in the morning, are there any lights on the control board? If not, I suspect it’s shutting down due to a high limit possibly. Does this only happen at night? It’s possibly you have a failing bin switch, but I’d lean towards this being a problem at other times, not just when you guys leave.

so lately our ice machine, model #QY0454A, has been powering of at night while we are closed. when I come in and open it up there are no lights on. I try unplugging it first for 10 minutes then 30 and then an hour but nothing happens after turning it back on. the only way that it works again is to run it through a clean cycle. is there anything in particular that could be causing this. thanks

@Bruce, I suppose it’s possible, but unlikely the board is causing this. You should check your voltage coming into the machine.

I have a Model# QYO134A. It seems to be having power surge problem. The compreser & pump & fan, all slow way down & then pick back up. After about 2 or 3 cycles this starts & after about 6 cycles shuts down. Could the board cause this?

@gerald, what is the complete model of your ice machine? There should be a 2 letters in front of the 1004A number. Let me know, along with which board you replaced.

Other than that, you can also check to make sure you are getting voltage at the right time.

i have a model1004a and does not cycle at all the harvest light stays on 90% of the time . i replaced the board and know the the red light is off but now the pump runs all the time and inlet water valve does not fill the holding tank i don’t know any thing to check. Can you help!

Recently purchased a QM30A under counter series, used, and the only thing that comes on when I turn on the switch in either direction is the compressor. Pump and fan aren’t coming on. Was wondering if the fan is supposed to come on right away and also if there is some kind of float that could be sticking that’s keeping the pump from coming on?

I just got it to produce ice. Thanks for all your help Lynn!

Thanks for the response Lynn! So I was able to get the machine to turn on. I first ran it through clean mode and water began to flow down the cooling grill. After about a minute or so I switched the toggle to the off position, reinstalled everything, then toggled it to the ice position. The machine began to work and water is flowing down the cooling grill. However, the clean light remains on as well as the left bin light. Occasionally the water probe light will switch on. The machine is still currently running but I don’t feel the cooling grill getting any colder.

@Silas, first try turning off the power to your ice machine, then turning it back on. Then, when you toggle your switch to ice, watch the inside of the machine and indicate of any of your components turn on. Check the water inlet valve, dump valve, compressor, water pump, whatever. Let me know if anything runs.

Thanks.

I have the model SD0304 and it has recently shut off. I’ve toggeled the ICE/OFF/CLEAN switch and have found that when I switch the toggle to the ICE position the SL-1 light blinks once then shuts off. I’m not sure what to do. Thanks for your help!

@Ron, that is a telltale sign of a dirty evaporator. I know you said it was cleaned, but did someone use a soft nylon brush and actually scrub inside the cavities of the evaporator. The scale that causes the problems you describe cannot be seen unless the evaporator is completely dry. When wet it looks perfectly clean. If you are sure it has been scrubbed, with nickel safe cleaner, and something not to scratch the evaporator, have you looked for pitting or plates separating?

@Ryan, that sounds like a refrigeration component is failing. I’m leaning towards a leaking TXV, but cannot be for certain based on the information provided. In this case I would recommend having a trained refrigeration technician look at the ice machine.

I have a modular ice machine that is not making ice. Last night it ran a freezing cycle that took nearly an hour before harvesting the ice and it was a very thin and wet batch of ice. Upon returning to work this morning my ice machine was no longer running (shut itself off for a safety limit I assume). I turned it off and back on. It started up. Everything is running (compressor, fans, water trickling over evaporator) and the water gets very cold, but no ice ever forms on the evaporator. After running for 60 minutes it goes into harvest but has no ice to drop so it restarts a new freezing cycle. The same thing continues until it reaches it’s safety limit of attempts on making ice. Help?

I HAVE A Q-SERIES UNDER THE COUNTER MACHINE. THIS MACHINE HAS BEEN WORKING GREAT UP UNTIL THE

IT GOES INTO HARVEST, IT WILL NOT HARVEST AN THE MACHINE DOESN’T START BACK UP AGAIN. IF YOU

RESET THE FRONT SWITCH THEN THE MACHINE KICKS BACK IN AND THE ICE DROPS. IT MIGHT THEN WORK FOR

A FEW BATCHES OR IT MAY DO THE SAME THING AS BEFORE OR IT MAY STAY WORKING FOR A DAY OR

TWO.IT’S VERY INTERMITTENT. THE ICE IS NICE AND CLEAR AND THE RIGHT SIZE. HOWEVER SOMETIMES,

WHICH DOESN’T HAPPEN OFTEN IT WILL GO INTO HARVEST BUT NOT HARVEST THEN STARTS BACK UP AND

.
FREEZES A BIG CHUNK OF ICE IN THAT BATCH . THE ROOM TEMP IS BETWEEN 50 AND 85. NEED SOME HELP

ON THIS ONE. THANKS

@Laura, if you are sure the machine is clean and that there are good probes installed, specifically the ice thickness, then you might want to check your toggle switch. What you describe can be caused by the switch failing or a weird grounding problem in the machine or even back to the breaker box.

Even though it makes 2 good batches of ice, it might benefit you to also time the cycles, just to see if there was a problem waiting to trip the safety limit. Time the freeze cycle, then when it initiates harvest, time the harvest cycle. Let me know if you have any other questions or what you find out, I’d be happy to assist further.

Also, if you want, simply email me at sales@icemakerpartsshop.com.

I have a Manitowoc S series ice machine. It has worked well for 3 years.
But now, it will make a couple batches of good ice, then suddenly, in the freeze cycle, the water drains from the trough instead of flowing over the evaporator, causing the evap. To frost over.

I would say that the dump valve is stuck, but why would it work correctly through 2 cycles? And work correctly during a cleaning?

The machine has been thoroughly cleaned… I keep spare water and thickness probes, so both have been replaced. The lights all work correctly, and no safety limit lights are blinking (possibly because I shut if off before the machine shuts itself off?).

@Anthony, I’d be happy to help. The very first rule of thumb, is not to put gauges on an ice machine, unless it’s your last option.(especially on an undercounter) These machines are critically charged, so even putting hoses on a machine will cause incorrect readings often times. Also, refrigeration problems are few and far between, compared to other issues like water quality and cleanliness.

Over 75% of ice machines can be repaired with a good thorough cleaning, even in the description you are giving me. So, gonna ask the obvious first, just to be sure. Is the ice machine bringing in hot water, some times they are installed on the wrong water line and those small undercounter machines are prone to not working with hot water. Next, is the machine actually in freeze mode or has it skipped it and went to harvest? Is the evaporator(where the ice forms) frosting or getting cold at all? Is your fan motor running during the freeze cycle? If the machine eventually shuts down, what safety limit is it giving you?

Let me know what you come up with and I’ll be happy to assist further. Optionally, you can email me directly at sales@icemakerpartsshop.com