Written by
Clara Bennett Appliance Care EditorPublished September 3, 2026Updated October 20, 2026
Content status:
Verified
Error codeEr16
ApplianceIce Maker
Quick answer
Er16 is a water drain error on the RNP115 / URNP115 nugget ice machine, with drain valve and drain checks from the manual.
Model compatibility: U-Line reuses codes across series and model years, so Er16 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
Water drain error: the lower limit water level sensor is not detected within 2 minutes of drain valve operation; it resets after 5 minutes.
When the drain valve operates on an RNP115 / URNP115 nugget ice machine, the lower limit water level sensor should be detected within 2 minutes. If it is not, the unit shows Er16, a water drain error. This is a current-generation code.
Fixing a drain error
The manual points to three things: replace the water level sensor if it is faulty, check how the drain valve operates, and check the drain for clogs. Restart the machine after the work is done. The error also resets by itself after 5 minutes.
Related water and temperature codes
Er15 is the supply-side twin: no water detected at the level sensor.
Er25 is evaporator freezing and is worth ruling out if the unit also seems cold.
Er01 means the evaporator stayed warm during ice making.
U-Line nugget ice maker repair in Los Angeles
A blocked drain or a failing sensor is easier to sort out with help. Reach the Los Angeles line at (310) 879-5776 about your ice maker repair. Tell us the Er16 code, the model number and whether the drain was already checked.
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…
