Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeDoor Open 5M
ApplianceIce Maker
Quick answer
Door Open 5M on the U-3018CLRS-40B means the door switch has stayed open for more than 5 minutes.
Model compatibility: U-Line reuses codes across series and model years, so Door Open 5M 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
Door Open 5M means the door switch was open for more than 5 minutes.
Door Open 5M appears on the U-Line U-3018CLRS-40B, a 3000-series clear ice machine, when the door switch has been open for more than 5 minutes.
What to do
Close the door fully and make sure nothing keeps it from seating. If the code returns with the door shut, it is time to call for service.
Other door codes
E9 and E10 are door codes on other U-Line ice machines.
U-Line ice maker service in Los Angeles
For U-Line ice maker service in Los Angeles, call (310) 879-5776. Keep the model number and the code on hand. See ice maker repair.
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…
