---
title: "U-Line nugget ice machine with ICE and DRAIN blinking: air sensor"
description: "What ICE and DRAIN blinking means on U-Line nugget ice machine with ICE and DRAIN blinking: air sensors, what to check before booking, and when it is not a…"
url: "https://icemachinerepair.center/error-codes/u-line-ice-drain-blinking/"
---

# U-Line nugget ice machine with ICE and DRAIN blinking: air sensor

U-Line places an air sensor in front of the condenser so the control can adjust to the room.

## What ICE and DRAIN blinking actually means.

U-Line places an air sensor in front of the condenser so the control can adjust to the room. When the sensor reads open or shorted, ICE and DRAIN blink together.

U-Line ice machine display · also shown as air temperature sensor error

What to do when ICE and DRAIN blinking shows on the ice machine

### Kind of code Sensors and bin control

A sensor is telling the board something that is not true: a bin control that reads full on an empty bin, or empty while ice spills over the top, a curtain switch stuck open, a temperature sensor out of range, or an eye on a dispenser that no longer sees the cup. Scale and slime on a probe or an ultrasonic sensor cause much of it. Clearing ice piled against the bin control is a safe first step; testing and replacing a sensor is a technician's.

### Usually leads to Ice machine bin control repair

The thermostat bulb, paddle, curtain switch or electronic eye that senses a full bin, adjusted or replaced so the machine stops and restarts on time.

### Shows up as Ice Machine Error Code or Flashing Light: What It Is Telling You

An ice machine error code may show as a number on a small display, a pattern of blinking lights on the control board, a colored light on the front, or a machine that stops with one indicator flashing.

### Make U-Line

U-Line ice machine visits in a home bar start at the drain, since a slow line affects both the ice and the floor around it.

### Source U-Line URNP115 15-inch nugget ice machine user guide

U-Line 1 Class RNP115 and Outdoor ONP115 nugget ice machines, which report through the ICE, NO WATER and DRAIN lamps beside the light button.

## Before you book, in this order.

Each step comes from U-Line's own guidance for ICE and DRAIN blinking on its ice machines. Follow it to the end: the last card says whether this is a visit.

01

Turn the machine off.

02

Check that the front grille is clean and not blocked; a clear grille helps once the sensor is replaced.

03

Book a visit to test the sensor.

### Still there?

It usually turns into [ice machine bin control repair](https://icemachinerepair.center/services/ice-machine-bin-control-repair/). Book with the code and the model number.

### What not to do

This pattern is about a sensor, not about draining, even though the DRAIN lamp blinks. DRAIN blinking alone is Er16, a slow drain.

## What you may notice with it.

The ice machine problems ICE and DRAIN blinking tends to arrive with. Answer these at the ice machine before anyone is booked.

[All problems](https://icemachinerepair.center/problems/)

Before you call

### [Ice Machine Error Code or Flashing Light: What It Is Telling You](https://icemachinerepair.center/problems/ice-machine-error-code/)

[All 7 causes, cheapest first](https://icemachinerepair.center/problems/ice-machine-error-code/)

It also comes with

- [**Ice Machine Running but Not Making Ice**](https://icemachinerepair.center/problems/ice-machine-not-making-ice/)

Problem

### Ice Machine Error Code or Flashing Light: What It Is Telling You

7 causes, cheapest first

Where ICE and DRAIN blinking usually leads

## Ice machine bin control repair.

**Bin thermostat, paddle, curtain switch or ice-level sensor · low.**

Book a visit [What the job involves](https://icemachinerepair.center/services/ice-machine-bin-control-repair/)

## U-Line ice machines.

U-Line ice machine visits in a home bar start at the drain, since a slow line affects both the ice and the floor around it.

[U-Line ice machine repair](https://icemachinerepair.center/brands/u-line/)

More U-Line codes

[dr](https://icemachinerepair.center/error-codes/u-line-dr/) [Er15](https://icemachinerepair.center/error-codes/u-line-er15/) [Er16](https://icemachinerepair.center/error-codes/u-line-er16/) [Er01](https://icemachinerepair.center/error-codes/u-line-er01/) [Er03](https://icemachinerepair.center/error-codes/u-line-er03/) [Er25](https://icemachinerepair.center/error-codes/u-line-er25/) [NO WATER and DRAIN blinking](https://icemachinerepair.center/error-codes/u-line-no-water-drain-blinking/) [ICE and NO WATER blinking](https://icemachinerepair.center/error-codes/u-line-ice-no-water-blinking/) [ICE lamp blinking 2 seconds on, 1 off](https://icemachinerepair.center/error-codes/u-line-ice-lamp-slow-blink/) [ICE, NO WATER and DRAIN flicker in turn](https://icemachinerepair.center/error-codes/u-line-clean-signal/)

Sensors and bin control on other makes

[Atosa E1](https://icemachinerepair.center/error-codes/atosa-e1/) [Blue Air E6](https://icemachinerepair.center/error-codes/blue-air-e6/) [Ice-O-Matic Error 2](https://icemachinerepair.center/error-codes/ice-o-matic-error-2/) [Manitowoc E12](https://icemachinerepair.center/error-codes/manitowoc-e12/) [Marvel OFF flashing](https://icemachinerepair.center/error-codes/marvel-off-flashing/) [Maxx Ice Blinking exclamation mark](https://icemachinerepair.center/error-codes/maxx-ice-exclamation-mark/) [Monogram Door alarm](https://icemachinerepair.center/error-codes/monogram-door-alarm/) [Scotsman 5](https://icemachinerepair.center/error-codes/scotsman-5/)

[All 22 codes of this kind](https://icemachinerepair.center/error-codes/#family-sensor)

U-Line builds this

### Undercounter ice machine

A self-contained ice machine that makes and stores its own ice under a bar, a service counter or a kitchen island, from commercial units to clear-ice models in large homes.

U-Line builds this

### Nugget ice machine

An ice machine that freezes a thin layer inside a chilled cylinder and pushes it out with an auger as soft, chewable nuggets, for clinics, offices, hotels and large homes.

## In U-Line's own words

> When the air temperature sensor in front of the condenser is disconnected or shorted.

[U-Line URNP115 15-inch nugget ice machine user guide](https://www.u-line.com/userguide/pdf/index/sku/URNP115-IS01A/)

Every code on this site is taken from the manufacturer's documentation, never from a forum or a parts listing. U-Line 1 Class RNP115 and Outdoor ONP115 nugget ice machines, which report through the ICE, NO WATER and DRAIN lamps beside the light button.

## U-Line ICE and DRAIN blinking ice machine repair, where we come out.

The same visit in every metro below: the code, the model number, and a diagnosis before any part is ordered.

[All service areas](https://icemachinerepair.center/locations/)

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For the heart of your home.

## Questions about ICE and DRAIN blinking.

### Can I clear ICE and DRAIN blinking myself?

Turn the machine off. If it comes back, it needs a visit.

### Where is the air sensor on a U-Line nugget machine?

U-Line places it in front of the condenser, where it reads the air the machine draws in.

### Does dust cause the ICE and DRAIN pattern on a U-Line?

Dust does not break the sensor, but a clogged grille makes the machine work harder. Clean it while the sensor is being fixed.

### Can I run the machine with this pattern?

The control flags the missing reading. Book a visit rather than cycling power repeatedly.

---

**[Read on the site: U-Line nugget ice machine with ICE and DRAIN blinking: air sensor](https://icemachinerepair.center/error-codes/u-line-ice-drain-blinking/)**

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