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I need some advice from our subzero experts.
Complaint: Not Making Ice.
We found the unit with the icemaker arm bent around from the bucket being pushed back on the arm.
We replaced the icemaker and as the water level was low and it is in a rental home we removed the filter and installed a factory by pass plug.
I started the unit in Max Ice. The icemaker cycled around twice and filled to the correct water level. We thought all was good and stopped to double check it the next day, No Ice.
I checked everything over again, drawer switch etc. ok.
After posting on psanet we replaced the complete water valve w/flow sensor. I opened the valve sensor and found it had droppings in it. We thought we were ok.
I started the icemaker again on Max ice and stopped to check it again 2 days later. Still No Ice.
The wiring seems good . Power to the flow sensor comes from the Low Voltage Board and Power to the icemaker comes from the high voltage board.
Factory tech line doesn’t think it is a board.
Any advice would really be appreciated.
Thanks in advance.

Model Number
BI-36U/S/TH
Refrigerator Sub-Zero
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If the ice is frozen and you initiate a cycle and the ice maker goes through the complete cycle and refills with water then this has confirmed that the control board is working (power is supplied to the ice maker) and that all of the door switches and bail arm switch is also working. If the ice maker release heater comes on during harvest (I assume it did since it did harvest) then this confirms the ice maker thermostat is closed. So with this information it seems you have a real stumper on your hands. From your original symptoms and the follow up information I do not see why it is not working. I can only assume that the bail arm is not in the proper place when the bucket is inserted. This almost has to be your problem since all other components check out O.K. I have seen several W-Pool style heat release ice makers where I had to adjust (read as bend it) the bail arm to allow for a good switch contact so the ice maker does not “think” the bucket is full of ice. This models control board will interrupt power to the ice maker when the freezer light is energized, think a bad door switch or a door not aligning well with the door switches and also when the refrigerator is in the Sabbath mode. But I would think if this was the case you would not be able to manually start a harvest cycle since there would be no power to the ice maker.

When you returned to check the ice maker did you try to just remove the bucket and depress the bucket switch, or door switch to see if the ice maker would start harvest on its own?

  • I didn’t check that. I will run by there tomorrow and check it though. I will post what I find.
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Thanks for your response.
Serial # F2881640
Yes there is water in the mold. If you start the icemaker it will dump the cubes, Arm goes around and it will refill as it should.
Temp is 0 in freezer.
Yes icemaker is on at the panel. I left it in Max Ice.
Yes if I initiate the cycle. It will run the cycle, dump the cubes in the mold and refill with water.
No the icemaker arm is down.
I will definetly appreciate your advice on this one

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First of all what is the serial number? SZ made 3 different versions of this model and they are identified by the serial number.

A few questions I have is:

1 Is there water/ice in the mold of the icemaker?

2 What is the temperature in the freezer?

3 Is the icemaker turned on at the control panel?

4 Will the icemaker run through a cycle if you initiate a harvest cycle?

5 Is the ice level arm hanging in the up position which would mimic a full bucket?

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