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Kelly, Appliance Technician
Category: Appliance
Satisfied Customers: 22028
Experience:  Highly accurate diagnostician with over 30 years experience!
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Sub zero 650 - freezer was accidentally left open for a week

Customer Question

sub zero 650 - freezer was accidentally left open for a week while on vacation. freezer defrosted. We emptied, an cleaned. When closed back up it works fine but not the ice maker. I have tried turning it off to reset but no sound of the tray cycling to restart. Also the light will not come on in the freezer only.
Submitted: 11 months ago.
Category: Appliance
Expert:  Kelly replied 11 months ago.

Hi, welcome to Just Answer. Sorry to hear you are having appliance trouble, I know how frustrating that can be! My name is ***** ***** I look forward to helping you!

  • If the door was left open for a week, the bulb is probably burnt out. As for the ice maker, is the freezer at least 15* F or colder?
Customer: replied 11 months ago.
I removed the bulb and put in a lamp just to check and it is working. Freezer has been back on for 3 days and is working fine. Actual temperature on the Display panel says 16 degrees.
Customer: replied 11 months ago.
Is there a reset button on the actual ice maker?
Expert:  Kelly replied 11 months ago.

So that is too warm. The ice maker will not cycle unless the thermostat in the mold reaches 15* F. The freezer should be 0-10* F. Did you thaw the frost on the evaporator coil behind the rear wall in the freezer?

Customer: replied 11 months ago.
I did not pull out the unit.. As this is a built in do I need to completely pull it out of the cabinetry to check this?
Expert:  Kelly replied 11 months ago.

No, just thaw the coil inside the freezer. The easiest way is to turn the power off and leave the doors open for 24 hours. I suspect that after it has thawed it will restore ice maker function. As for the light, do you have a meter to test the socket with?

Customer: replied 11 months ago.
I can check the socket. When I hit the "colder" on the display panel on the freezer side it showed -5 deg. / I assume is the desired temp. After a few seconds it flashed back to 12 degrees / I assume the actual temp.
Expert:  Kelly replied 11 months ago.

Correct, it will always default back to the actual temperature.

Customer: replied 11 months ago.
my freezer is down to 4*. How long before I would hear the icemaker?
Expert:  Kelly replied 11 months ago.

I would give it a couple hours. The easiest way to diagnose ice maker issues is to manually fill the ice maker with water. If it dumps the cubes in a few hours but does not refill the ice maker tray, then there is a problem with the water fill, like a frozen fill tube or a faulty water inlet valve. If it does not dump the cubes, then the issue is with the ice maker itself or the temperature is too high and not allowing the harvest to start. Let me know what happens, please.

Expert:  Kelly replied 11 months ago.

Hello, I see this question is still open and I was just following up to see if you require further assistance.