Monogram Ice Maker OFF Light 2 Blinks: Bin Thermistor Failure
Two repeating OFF-light blinks mean a bin thermistor problem on the ZDIS150. The service guide lists what a technician looks at.
Specialized Monogram Appliance Repair in San Francisco
Mon–Sat: 8:00 AM – 7:00 PM
A Monogram nugget ice maker made for a custom panel and handle, from the UNC family.
UNC is the prefix for Monogram nugget ice makers, and the UNC15NPWII is a current model with a custom panel and handle. We confirm the opening width on site. Nugget ice is soft and chewable, which suits drinks and coffee bars, but the machine that makes it works differently from one that freezes slabs. Background reading: our Monogram ice maker repair and the ice maker appliance guide.
Because nugget ice is pushed and compacted rather than dropped, owners notice changes in sound and texture before the bin runs dry:
Hard water scale is a frequent background cause because mineral buildup interferes with the moving parts and the water level control.
Make sure the water supply valve is open and the line is not kinked behind the unit. Check the power and breaker. Empty the bin and look for a stuck cluster of ice. See whether the cleaning light is on, and write down any other indicator. Wiping the bin is fine; opening the machine is not. You can read how ice maker lights are described in the OFF light 2 blinks page and the 3 blinks page, which describe blink counts for Monogram ice makers in general, not for any single model.
Because the front is your own cabinetry, we check the panel weight and handle fit as well as the water and drain connections. The technician explains the finding first, gives you a written estimate and waits for your approval.
Another 15-inch unit is the UNC15NJII.
Describe the sound and the ice itself: is it wet, small, hard or missing? Mention when the water filter or supply line was last touched, and whether anyone has recently moved the unit. A photograph of the label and the opening helps us arrive prepared.
Wet or soft nuggets can point to a water level issue, a cooling problem or scale buildup. A technician looks at all three.
It deserves attention. Turn the machine off if the noise is harsh or accompanied by a burning smell, and book a visit.
Yes. Mineral scale can slow production and make the machine work harder.
Most built-in ice makers need a way to remove melt water. We check the drain path as part of the visit.
Model-information disclaimer. Confirm your exact model number and specifications with your appliance documentation before booking a repair. Model pages are for identification and compatibility reference.
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