Written by
Elena Vasquez Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeNo Comm
ApplianceIce Maker
What No Comm tells you
On the U-3018CLRS-40B, a 3000-series clear ice machine, this message appears once the machine can no longer talk to its screen. The code is current for that model.
Owner steps
Switch the power to the unit off and on again.
If the message persists, get in touch with Customer Care.
Work left to a technician
The service procedure begins with the cable between the user interface and the main control board and measures voltage at each end. The result decides whether the interface, the board or the cable is replaced. None of this is meant for owners.
Other entries in the list
WTD Reset: a software reset after communication drops, with no action required.
For U-Line ice maker repair in San Francisco, call (415) 329-7078. Tell us the screen reads No Comm, give the model number and say that you already cycled the power.
Model compatibility: U-Line reuses codes across series and model years, so No Comm may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
No Comm means the unit lost communication to the display.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your U-Line appliance?
Book a specialist visit for a clear estimate and approval before any repair.
You submit a request with your appliance model and symptom, we confirm an appointment window, and a technician performs an on-site diagnosis. You then receive a clear estimate and decide whether to proceed before any repair begins.
Yes. We provide an upfront estimate after diagnosis. No parts are ordered or installed until you approve the work, so there are no surprise charges.
Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
Service areas are listed on the Locations page. Contact us with your ZIP code to confirm current coverage for your address.
Ready to get your U-Line appliance working again?
Book a repair online or call us — clear estimates and approval before any repair work begins.
