Question about GE Monogram® ZISS420DMSS Side by Side Refrigerator

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Zisb48dyb is collecting ice on left wall of freezer below ice maker

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  • boblbarth May 21, 2011

    I have turned off water and will see what happens. If it is the defrost cycle, what is happening to allow water to come down left side and then freeze?

  • boblbarth May 21, 2011

    I do not understand what you wrote about the defrost. Can you try to explain it more clearly: where does the ice collect and why is this different from normal operation, why does it melt to form water and why does this water run down left side and refreeze? thank you

  • boblbarth Jun 05, 2011

    there was no waater/ice forming with the water off. After I turned it back on, the icemaker worked until about half full and the ice returned starting above the icemaker down the left wall. I have shut the water again. How do I find an icemaker/line leak? thank you

  • boblbarth Jun 05, 2011

    there was no water/ice forming with the water off. After I turned it back on, the icemaker worked until about half full and the ice returned starting above the icemaker down the left wall. I have shut the water again. How do I find an icemaker/line leak? thank you

  • boblbarth Jun 06, 2011

    the water is starting from the TOP of the freezer wall--above the ice maker. Can this still be from ice maker. It didn't happen when water supply was turned off. Is there a water line above the freezer?



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It can be two possibilities
1) the ice maker is leaking water and that water is accumulating in the freezer section.
2) The other possibility is there is defrost problem.
If the ice is getting collected due to water leaking from ice maker then, to confirm this problem, just turn off water supply to the ice maker and water dispenser.Its just the valve to turn off and on.
The valve is at the back side of refrigerator.Just turn off that valve and then check after 24 hours.Is the ice still getting collected or not.If it stops getting accumulated then ice maker is leaking.Remove the ice maker and inspect the leak.But with water turned off, still ice is accumulating, then its defrost problem.

Try manual defrost reset procedure: ----
First unplug the unit from main power outlet. Then empty whole unit completely. Then keep both the doors open. Wait for 24 hours. All the ice collected on the coils and in the freezer section will get melted. Clean the water from the sections. Then Connect the power cord of the unit to main power outlet after 24 hours/.Then set the temperature to normal in both fridge and freezer section. It will take near to 4 hours to get run in its proper cooling cycle. Then check, if the problem returns again. If the same problem occurs then it's defrost problem. The defrost board and the defrost thermostat/heater is not functioning properly and it has to be checked and replaced.
The defrost assembly consists of three main parts. The defrost thermostat, the defrost heater and defrost board. Any of the one is not functioning. When thermostat sense the maximum cooling, it triggers the defrost heater to start heating and this defrosts the ice collected on the coils and the system works. Both thermostat and heater are controlled by defrost board. First the thermostat and defrost heater to be checked, if both check ok by meter and visually, then its defrost board causing the problem.

You can get required parts from sears part direct online site or from site.


This will help. Thanks. Helpmech.

Posted on May 21, 2011

  • 2 more comments 
  • raj somaiya May 21, 2011

    If the problem is due to defrost then its due to freezer section getting over cool as defrost is blocked and ice getting collected on the evaporator coils.This ice is melting water and getting collected on the freezer wall.The evaporator in the inner side of freezer section.The defrost thermostat and defrost heater both located beside on the evaporator coil.-----------
    If turning off the water is not helping to resolve this problem, then get the manual defrost procedure done first of all. This will melt all ice from everywhere in the freezer/ fridge sections.-----
    This should help.Thanks.Helpmech.

  • raj somaiya May 21, 2011

    There is evaporator coil in the freezer section.When the coils gets frosted, after that defrost cycle starts.But if the coil gets over frosted and after that defrost cycle starts that means defrost cycle is running, but its running bit late.
    Now why defrost cycle is running late? this has many reasons like defrost heater got weak, defrost thermostat not working or defrost board got weak.But in defrost cycle all ice melts and drains into drain pan above the compressor.---- but if when defrost cycle is running and in between the cooling cycle again starts then the water gets frosted where it is and slowly --- slowly ice gets accumulated in the freezer wall section .You notice it when too much of ice gets accumulated, but it slowly --- slowly gets accumulated.---------- But once you try manual defrost procedure this will be confirmed, that its defrost related or heater related or thermostat related.,But if defrost reset procedure solves this ice accumulation problem, then it was board related and board got reset and this solved your problem.-------------
    So this will help.Thanks.Helpmech.

  • raj somaiya Jun 06, 2011

    you will need to remove ice-maker out and inspect for any crack or you will have to again try the same procedure.Like turn water off to the unit then after few hours again turn on then after few minutes you will have to notice and check for leak below the ice maker section.You will have to inspect by keeping the door open.When the door gets closed one switch gets pressed.You will have to press that door switch closing button manually with your hand, so the system will run like it is running, then see below the ice maker, after some time you will notice water leak.But this will be sometime time consuming.How much you will wait to locate leak.------- But other possibility is good.Remove ice maker out of the unit, then pass water and fill water in the ice maker chamber, then see water will leak from its low side.Where the water leaks, seal it with water/plastic sealant and then see.You can get this sealant from home depot or wallmart stores.But if its still leaking then ice maker assembly needs to be replaced and this will solve the issue.--------

    You can get required parts from sears part direct online site or from site.
    This will help. Thanks. Helpmech.

  • raj somaiya Jun 06, 2011

    Yes there is water dispenser line.It can be leaking or the line is got cracked.Has to be inspected.------



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