Question about U-Line Refrigerator Ice Maker

2 Answers

I have a U-Line model bi-98 ice maker which stopped making ice. I found it with a ice bin full of water and not running one day. I cleaned ti up and shut it down because I didn't need it for a couple of months. I just tried to start it up again to no avail. After turning the water on and pushing the power switch to the on position the compressor and condenser fan do not come on. The ice maker fills with water and the cube ejector mechinism starts turning and the mold heater comes on. It does this for a minute and than starts over again and the compressor never comes on. I assume the compressor is locked out during the ejector cycle. What should I look for to solve the problem?

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  • bobgregg29 Jul 04, 2010

    Someone with u-line icemaker experience needs to address this problem for me

  • bobgregg29 Jul 04, 2010

    The comments of both experts were very helpful.

    Thanks,

    Charles

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2 Answers

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  • Master
  • 11,800 Answers

Look at the thermostat and at the programmer/control board - they are the ones that control the power to the compressor. Check first that the power is transmitted to the compressor, then if it's received. If it's received you can do one more check of the compressor - connect it directly to the mains, if it's good it should start.

Posted on Jul 04, 2010

  • 4 more comments 
  • bobgregg29 Jul 04, 2010

    Is the compressor normally locked out during the ice eject cycle?



    Why does the fill, heat and eject cycle keep repeating itself?



    Charles

  • Azrael SRL Jul 04, 2010

    The compressor only works when the water is freezed. When the set temperature of the ice has been reached  - between 10F for the fastest ice production to -10F for the slowes - the compressor is shut down. When the temperature has been reached a heating coil is started. This coil runs on a timer, sufficiently long to melt the ice a little at the surface to unlock it from the mold, then it is shut down. Then the extractor is activated to dump the ice. Then a timer activates the water intake to fill the moulds. When the moulds are filled (if the timer is well adjusted it will be perfectly filled, no more no less)  the water is stooped and the compressor started - the compressor will run till the water is frozen solid and has reached the required temperature . From now on the ice maker will run the process till the bucket of ice will be filled, then its weight will press on a switch and stop it. The speed of the ice production can be adjusted by rotating the control button behind the front grille.

    The process repeats itself because either the pressure/weight switch under the bucket isn't triggered or the controller is malfunctioning.
    As you see your problem is as i said - the compressor doesn't receive power. Find out why as i said before.

  • bobgregg29 Jul 04, 2010

    Please see my reply to Shastalaker7 and see if you have any further comments.



    Thanks,



    Charles

  • Azrael SRL Jul 04, 2010

    Sorry, i can't see it, each one sees only his comments and your replies to the first post. But whatever you decide to do you should check the compressor first.


  • bobgregg29 Jul 04, 2010

    Solution #2
    posted on Jul 04, 2010





    shastalaker7

    Rank: Guru Expert
    Rating: 91.32% , 280 votes




    I would look for pressure in the system. It may have shut down on low or high pressure. Look to see if you have a manual reset for the low or high head pressure switch. If it is air cooled, check the coil, condenser coil if it did trip off on high head and clean the back side off. You have power, a safety switch has shut it down the last time it was used and it would be a manual reset.If you have the original manual, it might come in handy to look through. To check for pressure, find the schrader valve for charging and since ice machines are of critical charge, just remove the screw on cap and depress it just enough to see. If nothing comes out at all, push it in completly, and you will know you have leaked all of the freon out. Check these things out and let me know the out come. I will be here if you need me.
    Sincerely, and have a great 4th,
    Shastalaker7
    A/C, Heating, & Refrigeration Contractor PS, Please be kind when rating me, that would be kind of you.




    Jul 04, 2010























    shastalaker7

    Rank: Guru Expert
    Rating: 91.32% , 280 votes




    I would look for pressure in the system. It may have shut down on low or high pressure. Look to see if you have a manual reset for the low or high head pressure switch. If it is air cooled, check the coil, condenser coil if it did trip off on high head and clean the back side off. You have power, a safety switch has shut it down the last time it was used and it would be a manual reset.If you have the original manual, it might come in handy to look through. To check for pressure, find the schrader valve for charging and since ice machines are of critical charge, just remove the screw on cap and depress it just enough to see. If nothing comes out at all, push it in completly, and you will know you have leaked all of the freon out. Check these things out and let me know the out come. I will be here if you need me.
    Sincerely, and have a great 4th,
    Shastalaker7
    A/C, Heating, & Refrigeration Contractor PS, Please be kind when rating me, that would be kind of you.

    My answer to him:

    - I rigged the compressor wiring to make it hot direct from the power cord and it works perfectly. The compressor and fan are grounded thru the thermostat and when I removed the thermostat from the circuit the compressor and fan run okay and cool like it should. What this tells me is that the thermostat is bad and I am now trying to figure out how to remove the ice maker so I can attach the cap tube from a new thermostat I need to buy some where

    By the way the compressor has no charging valve on the suction side, only a crimped copper tube.

    Is there any thing special I need to know about removing the ice maker and replacing the cap tube from the new thermostat?

    Thanks,

    Charles

    I have now removed the thermostat and getting ready to order a new one

  • Azrael SRL Jul 05, 2010

    Just be very careful with the icemaker, the tubes are very brittle so move it slowly. 


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  • Master
  • 1,515 Answers

I would look for pressure in the system. It may have shut down on low or high pressure. Look to see if you have a manual reset for the low or high head pressure switch. If it is air cooled, check the coil, condenser coil if it did trip off on high head and clean the back side off. You have power, a safety switch has shut it down the last time it was used and it would be a manual reset.If you have the original manual, it might come in handy to look through. To check for pressure, find the schrader valve for charging and since ice machines are of critical charge, just remove the screw on cap and depress it just enough to see. If nothing comes out at all, push it in completly, and you will know you have leaked all of the freon out. Check these things out and let me know the out come. I will be here if you need me.
Sincerely, and have a great 4th,
Shastalaker7
A/C, Heating, & Refrigeration Contractor PS, Please be kind when rating me, that would be kind of you.

Posted on Jul 04, 2010

  • 2 more comments 
  • bobgregg29 Jul 04, 2010

    I rigged the compressor wiring to make it hot direct from the power cord and it works perfectly. The compressor and fan are grounded thru the thermostat and when I removed the thermostat from the circuit the compressor and fan run okay and cool like it should. What this tells me is that the thermostat is bad and I am now trying to figure out how to remove the ice maker so I can attach the cap tube from a new thermostat I need to buy some where



    By the way the compressor has no charging valve on the suction side, only a crimped copper tube.



    Is there any thing special I need to know about removing the ice maker and replacing the cap tube from the new thermostat?



    Thanks,



    Charles

  • Robert Horton
    Robert Horton Jul 05, 2010

    What I would try and do at this point, you know the stat control is faulty. You are runniing the compressor by wiring it to direct power so you know its good, and now you need to add a thermostat to control it. What I would do my self instead of buy a roll of cap tube to cut and fit a piece, is to try putting a Penn a-19 control stat in the are of the evaporator and wire it to cycle the unit off when it reaches harvest temperature, either the type with the bulb, 48" cap on it or just the standard coil type. I would go with the 48" one by Penn controls. The freon is good if it is cooling good, and if it has no service valves on it, oh well. If you ever need to check it, you will have to install a couple of piercing valves to clamp on the suction and liquid lines to check. If you still want to go your way with cap tubing1/8", you can get it at a appliance parts house unless you know a contractor you can get a roll at a a/c refrigeration parts house. They stack all you will need to finish the job. You just need to get to the inlet of the evaporator coil to mount this, may take some time and no real easy way to do it, just take your time and make sure its wired right and mounted right. I wish you the best. Let me know on the outcome.
    Shastalaker7


  • Robert Horton
    Robert Horton Jul 06, 2010

    Hi, BobGregg, can you rate me as far as being any help to you on this unit. It would be very kind of you to do this for me. I wish you the best of luck, and all you need is to place the stat in the best location and a easy place.
    Sincerely,
    Shastalaker7 A/C, Heating, & Refrigeration Contractor.


  • Robert Horton
    Robert Horton Jul 12, 2010

    Hi, please do not forget to rate us on our help to you. Thank you very much, and I hope I was of help to you on this machine,
    Shastalaker7


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