Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeDrain Blocked
ApplianceIce Maker
Quick answer
Drain Blocked on the U-3018CLRS-40B means the drain pump has detected a problem.
Model compatibility: U-Line reuses codes across series and model years, so Drain Blocked 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
Drain Blocked means the drain pump has detected a problem.
Drain Blocked is an error entry on the U-Line U-3018CLRS-40B, a 3000-series clear ice machine. It means the drain pump has detected a problem.
What to do
Disconnect power before touching anything near the drain. If the entry returns, call for service.
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.
U-Line products are compact, built-in, and often visually similar across generations. Effective repair starts with the exact model, the symptom you can…
