Written by
Elena Vasquez Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeEr15
ApplianceIce Maker
Er15 summary
Machine
RNP115 / URNP115 nugget ice machine
Cause flagged
No water at the level sensor for 2 minutes
Reset
Happens by itself after 5 minutes
Checks before restarting
Verify the pressure of the water supply.
Verify the water level sensor.
Start the machine again once both are checked.
The manual’s order is pressure first, then the sensor, then operation resumes. Er15 belongs to the current RNP115 / URNP115 nugget ice machine, and the owner checks end there.
Other water and temperature codes
Er16: the drain-side problem, where the lower limit sensor goes undetected after the drain valve runs.
Er25: a freezing evaporator, a temperature code and not a water code.
If Er15 returns after the pressure and sensor checks, call (415) 329-7078 for U-Line ice maker repair in San Francisco and the Bay Area. Have the code, the model number and the checks you completed ready to tell us.
Model compatibility: U-Line reuses codes across series and model years, so Er15 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
Er15 is a water supply error: the level sensor sees no water for 2 minutes, and it resets after 5 minutes.
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?
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