Quick answer
The clean light on a Sub-Zero standalone ice maker (UC-15I series) means the unit is due for a cleaning and descaling cycle. Las Vegas hard water builds scale quickly, and ignoring the light leads to thin or cloudy ice, slow production and eventually no ice.
Applies toUC-15I, UC-15IP, UC-15IO, DEU1550I
Typical fixDIY / Technician
Service call$75
What It Means
The clean indicator is a time-based reminder. Scale on the evaporator plate and water system reduces ice quality and output.
Common Causes
- Normal cleaning interval reached
- Faster scale buildup due to hard water
What You Can Do
- Run the cleaning cycle with approved ice machine cleaner per your use & care guide.
- Discard the first batches of ice after cleaning.
- Clean the condenser behind the toe-kick.
What a Technician Does
For heavy scale, we perform a full descale, clean the distributor and pump, and check sensors and drainage.
Need a Sub-Zero Specialist?
$75 service call, credited toward your repair · 1-year parts · 180-day labor warranty · EPA 608 certified · Mon–Fri 8am–7pm · Sat–Sun 8am–4pm